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Journal articles on the topic 'Tomato accessions'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Yang, Yiwen, Jinghong Luo, Yueming Tang, Zhi Li, Liang Yang, and Jia Gao. "Comparative Evaluation of Appearance and Nutritional Qualities of 57 Tomato (Solanum lycopersicum L.) Accessions." Horticulturae 11, no. 7 (2025): 796. https://doi.org/10.3390/horticulturae11070796.

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This study aims to comparatively analyze and evaluate the postharvest quality of tomatoes, and to further screen and utilize the excellent tomato germplasm resources. Correlation analysis, principal component analysis (PCA), and cluster analysis were performed on 18 appearance and nutritional quality indicators of 57 tomato F1 hybrids (labeled accession 1# to 57#). The results show that the variation coefficients of the tested quality indicators among tomato accessions ranged from 3.77% to 42.92%. Among them, 11 indicators had variation coefficients greater than 10%. The soluble protein conten

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2

Ganeva, Daniela, Stanislava Grozeva, and Galina Pevicharova. "EVALUATION OF PRODUCTIVITY AND PRODUCTIVITY COMPOUNDS IN TOMATO ACCESSIONS GROWN UNDER ELEVATED TEMPERATURE AND REDUCED IRRIGATION." Journal of International Scientific Publications, Agriculture & Food 6 (June 1, 2018): 99–110. https://doi.org/10.5281/zenodo.3749727.

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The aim of this experimental work was to evaluate the productivity and productivity compounds in tomato accessions grown under elevated temperature and reduced irrigation. The experiment was conducted at the Maritsa Vegetable Crops Research Institute with 25 tomato accessions (14 determinate and 11 indeterminate) in the period of 2016 and 2017. Two watering regimes were applied - optimum and 50% reduced. Productivity per plant, number of fruits per plant and average fruit weigh were measured. Environmental descriptors air temperature, air humidity, rainfalls and soil moisture at 15 and 30 cm d

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3

KUMAR, MANISH, R. K. YADAV, T. K. BEHERA, AKSHAY TALUKDAR, and AJAY ARORA. "Genetic diversity analysis in tomato (Solanum lycopersicum) using microsatellite markers." Indian Journal of Agricultural Sciences 88, no. 1 (2018): 74–78. http://dx.doi.org/10.56093/ijas.v88i1.79600.

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Present study was conducted to determine the genetic diversity at molecular level among 21 thermo-tolerant tomato accessions. All the accessions were screened by using 18 simple sequence repeats (SSR) primers to estimate genetic diversity and genetic relationships among these accessions. Among the 18 SSRs, only 5 primers (SSR47, TES628, TGS149, TGS230 and TGS330) were polymorphic which were used for accessing the genetic distance to find out the phylogenetic relationship among the different tomato accessions. Polymorphism information content (PIC) ranged from 0.17 (TGS230) to 0.36 (TGS149) wit

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4

Sierra-Orozco, Edgar, John Smeda, Katia Viana Xavier, Reza Shekasteband, Gary E. Vallad, and Samuel F. Hutton. "Identification of Resistance to Target Spot of Tomato Caused by Corynespora cassiicola in Wild Tomato Accessions." J. Amer. Soc. Hort. Sci. 149, no. 2 (2024): 99–106. http://dx.doi.org/10.21273/jashs05345-23.

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Tomato (Solanum lycopersicum) is an important vegetable crop and a valuable source of nutrients for the human diet. The southeast is the main fresh market tomato producer of the United States, with much of the production concentrated in Florida. However, production in this region is threatened by plant diseases such as target spot of tomato (TS) caused by Corynespora cassiicola, a multitrophic fungus widely distributed in tropical and subtropical areas. TS can infect foliage and fruit, often resulting in significant yield losses in conductive environments. There are no known TS-resistant culti

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5

Ibitoye, Dorcas, Adesike Kolawole, and Roseline Feyisola. "Assessment of wild tomato accessions for fruit yield, physicochemical and nutritional properties under a rain forest agro-ecology." Genetic Resources 1, no. 2 (2020): 1–11. http://dx.doi.org/10.46265/genresj.bjcv8100.

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Tomato (Solanum lycopersicum L.) is a broadly consumed fruit vegetable globally. It is one of the research mandate vegetable of the National Horticultural Research Institute (NIHORT), Ibadan, Nigeria. The institute’s contains diverse collections of tomato accessions and wild relatives, without utilization information for the African continent. With the decline in diversity and potential of cultivars, a robust tomato breeding pipeline with broad genetic base that eliminates redundancy in the development of lines with desired horticultural traits is paramount. This study evaluated the mean perfo

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6

Jaiswal, Namrata, Bidisha Chanda, Andrea Gilliard, Ainong Shi, and Kai-Shu Ling. "Evaluation of Tomato Germplasm against Tomato Brown Rugose Fruit Virus and Identification of Resistance in Solanum pimpinellifolium." Plants 13, no. 5 (2024): 581. http://dx.doi.org/10.3390/plants13050581.

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The tomato is one of the most important vegetable crops grown worldwide. Tomato brown rugose fruit virus (ToBRFV), a seed-borne tobamovirus, poses a serious threat to tomato production due to its ability to break the resistant genes (Tm-1, Tm-2, Tm-22) in tomatoes. The objective of this work was to identify new resistant source(s) of tomato germplasm against ToBRFV. To achieve this aim, a total of 476 accessions from 12 Solanum species were tested with the ToBRFV US isolate for their resistance and susceptibility. As a result, a total of 44 asymptomatic accessions were identified as resistant/

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7

Zhang, Jia-Qi, Jian-Ping Tao, Liu-Xia Song, et al. "Identification of Key Regulatory Factors of Molecular Marker TGS377 on Chromosome 1 and Its Response to Cold Stress in Tomato." Agronomy 12, no. 12 (2022): 2985. http://dx.doi.org/10.3390/agronomy12122985.

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Low temperature, as a kind of stress factor, often leads to tomato growth stagnation or yield reduction or even no harvest in production. At present, numerous genes have been shown to be involved in the regulation of cold resistance in the tomato. Complex regulatory mechanisms responding to low temperature stress in the tomato are still unclear in their details. In this study, six accessions of tomato (‘NL-7’, ‘NL-15’, ‘NL-18’, ‘NL-21, ‘NL-37’, and ‘NL-67’) with different cold tolerance were selected to detect the response to low temperature. The results showed that ‘NL-15’, ‘NL-18’, and ‘NL-2

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8

Li, Jian, Jessica Chitwood-Brown, Gurleen Kaur, et al. "Novel Sources of Resistance to Fusarium oxysporum f. sp. lycopersici Race 3 Among Solanum pennellii Accessions." Journal of the American Society for Horticultural Science 147, no. 1 (2022): 35–44. http://dx.doi.org/10.21273/jashs05080-21.

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Fusarium wilt of tomato (Solanum lycopersicum), caused by fungal pathogen Fusarium oxysporum f. sp. lycopersici (Fol), is one of the most important diseases in tomato production. Three races of the pathogen are described, and race-specific resistance genes have been applied in commercial tomato cultivars for controlling the disease. Race 3 (Fol3) threatens tomato production in many regions around the world, and novel resistance resources could expand the diversity and durability of Fol resistance. The wild tomato species, Solanum pennellii, is reported to harbor broad resistance to Fol and was

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9

Nveawiah-Yoho, Peter, Jing Zhou, Marsha Palmer, et al. "Identification of Proteins for Salt Tolerance Using a Comparative Proteomics Analysis of Tomato Accessions with Contrasting Salt Tolerance." Journal of the American Society for Horticultural Science 138, no. 5 (2013): 382–94. http://dx.doi.org/10.21273/jashs.138.5.382.

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Tomato (Solanum lycopersicum) has a wide variety of genotypes differing in their responses to salinity. This study was performed to identify salt-induced changes in proteomes that are distinguishable among tomatoes with contrasting salt tolerance. Tomato accessions [LA4133 (a salt-tolerant cherry tomato accession) and ‘Walter’ LA3465 (a salt-susceptible accession)] were subjected to salt treatment (200 mm NaCl) in hydroponic culture. Salt-induced changes in the root proteomes of each tomato accession were identified using the isobaric tags for relative and absolute quantitation (iTRAQ) method.

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10

Ramírez-Ojeda, Gabriela, Juan Enrique Rodríguez-Pérez, Eduardo Rodríguez-Guzmán, et al. "Distribution and Climatic Adaptation of Wild Tomato (Solanum lycopersicum L.) Populations in Mexico." Plants 11, no. 15 (2022): 2007. http://dx.doi.org/10.3390/plants11152007.

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Tomato (Solanum lycopersicum L.) is a vegetable with worldwide importance. Its wild or close related species are reservoirs of genes with potential use for the generation of varieties tolerant or resistant to specific biotic and abiotic factors. The objective was to determine the geographic distribution, ecological descriptors, and patterns of diversity and adaptation of 1296 accessions of native tomato from Mexico. An environmental information system was created with 21 climatic variables with a 1 km2 spatial resolution. Using multivariate techniques (Principal Component Analysis, PCA; Cluste

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11

Czernicka, Małgorzata, Kinga Kęska, Sébastien Planchon, et al. "Proteomic Studies of Roots in Hypoxia-Sensitive and -Tolerant Tomato Accessions Reveal Candidate Proteins Associated with Stress Priming." Cells 11, no. 3 (2022): 500. http://dx.doi.org/10.3390/cells11030500.

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Tomato (Solanum lycopersicum L.) is a vegetable frequently exposed to hypoxia stress induced either by being submerged, flooded or provided with limited oxygen in hydroponic cultivation systems. The purpose of the study was to establish the metabolic mechanisms responsible for overcoming hypoxia in two tomato accessions with different tolerance to this stress, selected based on morphological and physiological parameters. For this purpose, 3-week-old plants (plants at the juvenile stage) of waterlogging-tolerant (WL-T), i.e., POL 7/15, and waterlogging-sensitive (WL-S), i.e., PZ 215, accessions

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12

Pevicharova, Galina, Daniela Ganeva, and Stanislava Grozeva. "IMPACT OF WATER DEFICIT ON SENSORY PROFILE OF TOMATO (Solanum lycopersicon L.) GROWN UNDER HOT SUMMER CONDITIONS IN BULGARIA." Journal of International Scientific Publications, Agriculture & Food 6 (June 1, 2018): 122–37. https://doi.org/10.5281/zenodo.3749769.

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The effect of water deficit on sensory characteristics of tomato (Solanum lycopersicon L.) was investigated. A field experiment was carried out during 2016-2017 period under the hot summer conditions in Bulgaria. Twenty four Bulgarian tomato accessions representing three types - indeterminate, determinate for processing and determinate for fresh consumption - were harvested. Optimum and 50% reduced watering regimes were applied using a drip irrigation system. Temperatures over 35ºС during the vegetation were recorded in 26% of the days of the first experimental year and 40% of the days of

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13

Scott, J. W., S. A. Miller, R. E. Stall, et al. "Resistance to Race T2 of the Bacterial Spot Pathogen in Tomato." HortScience 32, no. 4 (1997): 724–27. http://dx.doi.org/10.21273/hortsci.32.4.724.

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Thirty-two tomato (Lycopersicon esculentum Mill.) or L. pimpinellifolium (L.) Mill. accessions were inoculated with race T2 of Xanthomonas campestris pv. vesicatoria (Xcv) in a field experiment at Wooster, Ohio, in 1995. Plants from accessions which segregated for race T2 resistance in greenhouse tests were selected and these are designated by hyphenated extensions below. The eight most resistant accessions from 1995 and PI 262173 were retested in 1996. Lycopersicon esculentum accession PI 114490-1-1 had virtually no Xcv symptoms either year. Lycopersicon pimpinellifolium accessions LA 442-1-B

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14

Eggleston, Susan L., Darlene M. Lawson, and Martha A. Mutschler. "Genetic Analysis of Acylsugar Production in Intraspecific Populations of the Wild Tomato, Lycopersicon pennellii." HortScience 30, no. 4 (1995): 801B—801. http://dx.doi.org/10.21273/hortsci.30.4.801b.

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Acylsugars produced by many accessions of wild tomato (L. pennellii) mediate resistance to a number of important pests of tomato. The highly resistant L. pennellii accession LA716 accumulates high levels of acylsugars, of which 85% are in the form of acylglucoses, the rest being acylsucroses. In contrast, L. pennellii accession LA1912, which does not show the insect resistance of accession LA716, accumulates very low levels of acylsugars, of which 55% are represented by acylglucoses. The intraspecific F1 derived from crosses between the accessions LA716 and LA1912 accumulates moderate levels o

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15

Falade, Moses Jimoh, and Olumoye Ezekiel Oyetunji. "Evaluation of Tomato (Solanum lycopersicum L.) Accessions Resistance against Fusarium Wilt (Fusarium oxysporum)." Asian Journal of Research in Crop Science 9, no. 4 (2024): 289–94. https://doi.org/10.9734/ajrcs/2024/v9i4318.

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Aim: Fusarium wilt (Fusarium oxysporum) is one of the major biotic factors limiting tomato production globally. Research was conducted in three environments to screen and identify Nigeria tomato accessions that are resistant to fusarium wilt. Methodology: Twelve (12) prominent tomato accessions were collected and screened against Fusarium oxysporum by artificial inoculation under field conditions in three diverse environments. The experiments were laid out in a Randomized Complete Block Design with three replications. Data were collected on plant height (cm), number of leaves per plant, number

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16

McNamara, Steven T., and Cary A. Mitchell. "Differential Flood Stress Resistance of Two Tomato Genotypes." Journal of the American Society for Horticultural Science 114, no. 6 (1989): 976–80. http://dx.doi.org/10.21273/jashs.114.6.976.

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Abstract Tomato accessions PI 128644 (Lycopersicon peruvianum var. dentatum Mill.) and PI 406966 (L. esculentum Mill.) were identified in preliminary screening trials as being relatively nonresistant and resistant to root-zone flooding, respectively. A comparative study of these accessions was undertaken to examine adaptive responses to inundation. Root and shoot growth of both accessions were inhibited by 120 hr of flooding. Aerobic respiratory capacity of secondary roots of both accessions decreased to a similar extent after 24 hr of inundation. Flooding did not significantly affect anaerobi

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17

Wolf, S., D. Yakir, M. A. Stevens, and J. Rudich. "Cold Temperature Tolerance of Wild Tomato Species." Journal of the American Society for Horticultural Science 111, no. 6 (1986): 960–64. http://dx.doi.org/10.21273/jashs.111.6.960.

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Abstract Accessions of several wild tomato species [Lycopersicon hirsutum H. and B. (LA 1363 and LA 1777), L. chilense Dun. (LA 1969 and LA 1971), and Solanum lycopersicoides Dun. (LA 1964)] were examined for cold tolerance and compared to the fast germination of L. esculentum Mill. PI 341988 and to the normal germination of ‘UC82B’. The wild accessions were collected above 3000 m and presumed to be cold-tolerant because of natural habitat. A number of characteristics, including germination, emergence, chlorophyll fluorescence, electrolyte leakage, and plastochron index were used to evaluate c

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18

Gordillo, Luis F., Mikel R. Stevens, Mark A. Millard, and Brad Geary. "Screening Two Lycopersicon peruvianum Collections for Resistance to Tomato spotted wilt virus." Plant Disease 92, no. 5 (2008): 694–704. http://dx.doi.org/10.1094/pdis-92-5-0694.

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The United States Department of Agriculture (USDA) Research Service and the Tomato Genetics Resource Center (TGRC) Lycopersicon peruvianum germplasm collections (16,335 plants from 285 accessions) were screened with the Tomato spotted wilt virus (TSWV) isolates TSWV6 from Hawaii, and Anwa-1 from Western Australia. Using TSWV6 to screen for resistance, 10,634 L. peruvianum plants from 280 accessions were screened for resistance, resulting in 168 (60%) accessions with 1,437 (14%) plants indicating resistance, with all 1,404 89S (Sw-5+/Sw-5+) and 1,456 89R (Sw-5/Sw-5) controls infected. When usin

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19

Fernández-Ruiz, V., M. C. Sánchez-Mata, M. Cámara, et al. "Internal Quality Characterization of Fresh Tomato Fruits." HortScience 39, no. 2 (2004): 339–45. http://dx.doi.org/10.21273/hortsci.39.2.339.

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The characterization of Lycopersicon germplasm for internal quality properties is essential to choose suitable donor parents for breeding programs. When donor parents belong to species of subgenus Eulycopersicon, which are phyletically closer to L. esculentum Mill., the recovery of agronomic traits is faster. When using these materials, a careful selection of donor parents which could improve several internal quality properties allows the acceleration of these breeding programs. In this work, we combine general determinations, such as soluble solid content, titratable acidity, pH, total sugars

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20

Odunayo Joseph,, Olawuyi, and Ogundipe Victor Olumide,. "The effect of amf (glomus clarum) on tomato resistance to early leaf blight (alternaria solani) on tomato." Global Journal of Agricultural Sciences 21, no. 1 (2022): 85–90. http://dx.doi.org/10.4314/gjass.v21i1.11.

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Tomato (Solanum lycopersicum L.), is an economic plant which belongs to Family Solanaceae and is widely consumed as food and other processed natural products. Tomato production areas are faced with economic losses due to early blight disease caused by Alternaria solani. Early blight disease reduce yield and renders fruit unmarketable, Cultural practices and fungicides are majorly adopted in the management of this disease. The use of tolerant varieties and Glomus clarum as alternatives which are environmental friendly necessitated this study. Therefore, this study investigated genetic resistanc

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Pietersen, Gerhard, and Marie F. Smith. "Tomato yellow leaf curl virus Resistant Tomatoes Show Resistance to Tomato curly stunt virus." Plant Disease 86, no. 5 (2002): 528–34. http://dx.doi.org/10.1094/pdis.2002.86.5.528.

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A new disease of tomatoes (Lycopersicon esculentum) in South Africa has caused severe yield losses. The causative virus, Tomato curly stunt virus (ToCSV) is distantly related to Tomato yellow leaf curl virus (TYLCV). Thirty-two tomato accessions resistant to TYLCV and 8 local cultivars were assessed for their responses to ToCSV infection. Natural infection in a field trial and a screen-house trial with controlled ToCSV-inoculation were conducted. Symptoms were rated using a severity index (SI). Yield parameters were determined in the screenhouse trial to support SI evaluations. Average SI's ob

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22

Mrosso, Secilia E., Patrick A. Ndakidemi, and Ernest R. Mbega. "Characterization of Secondary Metabolites Responsible for the Resistance of Local Tomato Accessions to Whitefly (Bemisia tabaci, Gennadius 1889) Hemiptera in Tanzania." Crops 2, no. 4 (2022): 445–60. http://dx.doi.org/10.3390/crops2040032.

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Plants have developed mechanisms to cope with stresses in their environments as they grow in diverse settings. Such means include releasing plant defense compounds upon attacks by pests or other stressors. Plants with these characteristics are essential as a plant germplasm source for breeding resistance against herbivores and insect pests. Therefore, this study aimed to screen germplasms for whitefly resistance and characterize the secondary metabolites responsible for this. Thirty local tomato accessions were screened for resistance against whiteflies (Bemisia tabaci Gennadius) in the screen

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23

Guo, Zhenhua, and John C. Snyder. "MITE DETERRENCE OF TOMATO GENOTYPES IS CLOSELY RELATED TO LEAF SURFACE CHEMISTRY." HortScience 27, no. 6 (1992): 646a—646. http://dx.doi.org/10.21273/hortsci.27.6.646a.

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Choice and non-choice bioassays were used to examine deterrence in vitro and in vivo of Tetranychus urticae Koch. In vivo deterrence of leaflets from 11 Lycopersicon hirsutum accessions as well as the tomato cultivar `Ace 55' was measured as was in vitro deterrence of their leaf hexane extracts. Leaf surface chemistry was examined by gas chromatography. All 6 accessions of L. hirsutum f. hirsutum contained sesquiterpene hydrocarbons. Each of these extracts also contained one or a few late eluting components. All were deterrent in vitro and 5 out of the 6 were deterrent in vivo. The one lacking

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24

Cortada, Laura, Sophie Mantelin, Soledad Verdejo-Lucas, and Isgouhi Kaloshian. "Marker analysis for detection of the Mi-1.2 resistance gene in tomato hybrid rootstocks and cultivars." Nematology 14, no. 5 (2012): 631–42. http://dx.doi.org/10.1163/156854112x624618.

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In tomato, the REX-1 marker is typically used to detect the root-knot nematode resistance gene Mi-1.2 in Solanum lycopersicum cultivars with introgression from S. peruvianum (Sp). However, using this marker, false positives have been reported in hybrid tomato rootstocks with introgressions from other Solanum species. We evaluated the reliability of available PCR-based markers Mi23, PMi and PM3 for detection of root-knot nematode resistance in a set of tomato hybrid rootstocks, cultivars and in several accessions of different Solanum species. Results showed that none of the tested markers was a

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25

Barnett, Jacob, Gina Buonauro, April Kuipers, Manoj Sapkota, Esther van der Knaap, and Hamid Razifard. "Genomic Characterization of a Wild-Like Tomato Accession from Arizona." Systematic Botany 47, no. 4 (2022): 1100–1106. http://dx.doi.org/10.1600/036364422x16674053033895.

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Abstract— Tomato domestication history has been revealed to be a highly complex story. A major contributor to this complexity is an evolutionary intermediate group (Solanum lycopersicum var. cerasiforme; SLC) between the cultivated tomato (Solanum lycopersicum var. lycopersicum; SLL) and its wild relative (Solanum pimpinellifolium; SP). SLC includes accessions with a broad spectrum of genomic and phenotypic characteristics. Some of the SLC accessions were previously hypothesized to be spreading northward from South America into Mesoamerica and that migration probably entailed reversal to wild-

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26

Lyerly, J. H., H. T. Stalker, J. W. Moyer, and K. Hoffman. "Evaluation of Arachis Species for Resistance to Tomato Spotted Wilt Virus." Peanut Science 29, no. 2 (2002): 79–84. http://dx.doi.org/10.3146/pnut.29.2.0001.

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Abstract Tomato spotted wilt virus (TSWV) is an important plant pathogen with a wide host range, including the domesticated peanut (Arachis hypogaea L.). After initial outbreaks on peanut during the 1980s, the virus has spread to all peanut-producing states in the U.S. TSWV is transmitted by several species of thrips which are difficult to control with insecticides; therefore, control of TSWV most likely will come from selecting resistant genotypes in breeding programs. Although moderate levels of resistance have been discovered in A. hypogaea, complete virus resistance has not been found. Sev

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Juhász, Ana Cristina Pinto, Derly José Henriques da Silva, Francisco Murilo Zerbini Júnior, Bruno Oliveira Soares, and George Alberto Hial Aguilera. "Screening of Lycopersicon sp. accessions for resistance to Pepper yellow mosaic virus." Scientia Agricola 63, no. 5 (2006): 510–12. http://dx.doi.org/10.1590/s0103-90162006000500014.

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The tomato is a crop of great economical importance, however it is susceptible to a large number of pests and diseases, including viral disease for which the best control strategy is genetic resistance. The disease, caused by Pepper yellow mosaic virus (PepYMV) has become a recent problem. Consequently, the idea of this work was to screen 376 accessions of Lycopersicon sp. to find possible sources of resistance to PepYMV. Out of 355 accessions of L. esculentum inoculated with PepYMV, 52 did not express symptoms. However, the virus reached high concentration in the tissues as measured by indire

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Stommel, John R. "GENOTYPIC DIFFERENCES IN MORPHOGENIC POTENTIAL OF CULTURED LEAF EXPLANTS OF LYCOPERSICON HIRSUTUM." HortScience 25, no. 9 (1990): 1064G—1064. http://dx.doi.org/10.21273/hortsci.25.9.1064.

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Cultured leaf explants obtained from 36 accessions of the wild tomato Lycopersicon hirsutum were evaluated for morphogenic capacity in response to 3 cytokinins [zeatin, benzylamino purine (BA) and kinetin] in combination with indoleacetic acid (IAA). Morphogenic responses within this wild species were accession-dependent, Cotyledon tissue, in comparison to true leaf explants, were superior for callus and shoot formation. Optimal callus induction medium varied with accession, but most often contained 13.3 μM BA plus 1.7 μM IAA. Media containing 4.6 or 9.2 μM zeatin plus 0.1 μM iaa were optimal

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Stommel, John R. "GENOTYPIC DIFFERENCES IN MORPHOGENIC POTENTIAL OF CULTURED LEAF EXPLANTS OF LYCOPERSICON HIRSUTUM." HortScience 25, no. 9 (1990): 1064g—1064. http://dx.doi.org/10.21273/hortsci.25.9.1064g.

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Cultured leaf explants obtained from 36 accessions of the wild tomato Lycopersicon hirsutum were evaluated for morphogenic capacity in response to 3 cytokinins [zeatin, benzylamino purine (BA) and kinetin] in combination with indoleacetic acid (IAA). Morphogenic responses within this wild species were accession-dependent, Cotyledon tissue, in comparison to true leaf explants, were superior for callus and shoot formation. Optimal callus induction medium varied with accession, but most often contained 13.3 μM BA plus 1.7 μM IAA. Media containing 4.6 or 9.2 μM zeatin plus 0.1 μM iaa were optimal

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30

Murungi, Lucy Kananu, Stephen Agong, Peter Masinde, Ahmed Hassanali, and Markus Knapp. "Cultivar-specific responses of tomato essential oils to tomato red spider mite (Tetranychus evansi): Implications for pest management." Open Research Africa 6 (September 28, 2023): 19. http://dx.doi.org/10.12688/openresafrica.14334.1.

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Background: The tomato (Solanum lycopersicum L.) is a widely cultivated and nutritionally valuable plant species, known for its culinary and health benefits. However, tomato crops are susceptible to various pests, including the tomato red spider mite (Tetranychus evansi), which can cause substantial yield losses. Essential oils from plants have shown potential as natural alternatives for pest management. Methods: This study investigated the interaction between essential oils from seven different tomato accessions namely; 1 (money maker), 13 (marglobe), 51 (PI 134417), 162 (JKUAT 22/202183), 18

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Zangoueinejad, Rouzbeh, Mohammad Taghi Alebrahim, and Te Ming Tseng. "Evaluation of auxin tolerance in selected tomato germplasm under greenhouse and field conditions." Weed Technology 33, no. 6 (2019): 815–22. http://dx.doi.org/10.1017/wet.2019.51.

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AbstractTomato is injured by low doses of 2,4-D, dicamba, quinclorac, and glyphosate. New crop varieties resistant to 2,4-D and dicamba are likely to increase use of these herbicides and may increase drift problems. There is a diverse germplasm of tomato available that includes wild relatives known to be tolerant to numerous biotic and abiotic stresses. A greenhouse and field study was conducted to investigate auxin tolerance in three wild tomato accessions (TOM199, TOM198, and TOM300) and compare them with two commercial tomato cultivars (‘Money Maker’ and ‘Better Boy’). Auxin herbicides, whi

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Henzler, Ilan, and Hamid Khazaei. "Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area in Solanum galapagense." Genetic Resources 5, no. 9 (2024): 1–12. http://dx.doi.org/10.46265/genresj.nlvc6810.

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Glandular trichomes are physical and chemical barriers used by some tomato wild relatives to confer resistance against insect pests and diseases transmitted by them. Solanum galapagense has been identified as one of the potential sources of insect pest resistance. The present study aimed to examine the trichome diversity and acylsugar concentration of 26 accessions of S. galapagense along with one cultivated tomato (S. lycopersicum) and one cherry tomato (S. l. cerasiforme) cultivar. The results revealed large phenotypic variation among S. galapagense accessions for all studied traits. The S.

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Soler-Aleixandre, Salvador, C. López, J. Cebolla-Cornejo, and F. Nuez. "Sources of Resistance to Pepino mosaic virus (PepMV) in Tomato." HortScience 42, no. 1 (2007): 40–45. http://dx.doi.org/10.21273/hortsci.42.1.40.

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The disease incited by Pepino mosaic virus (PepMV) is currently a serious problem for tomato (Solanum lycopersicum L.) crops in several European countries. A collection of accessions from different Solanum species was screened to find sources of resistance to PepMV. All plants of S. lycopersicum, S. lycopersicum var. cerasiforme, S. pennellii Correll, S. cheesmaniae (L. Riley) Fosberg, S. habrochaites S. Knapp & D.M. Spooner, S. neorickii D.M. Spooner, G.J. Anderson & R.K. Jansen, S. pimpinellifolium L., S. basendopogon Bitter, S. canense Rydb., S. caripense Humb. & Bonpl. ex Dunal

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Gao, Wenzheng, Zhirong Wang, Chenchen Dong, et al. "Screening for Resistant Germplasms and Quantitative Trait Locus Mapping of Resistance to Tomato Chlorosis Virus." International Journal of Molecular Sciences 26, no. 5 (2025): 2060. https://doi.org/10.3390/ijms26052060.

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Tomato chlorosis virus (ToCV) is an emerging plant virus that poses a substantial threat to the cultivation of economically vital vegetable crops, particularly tomato (Solanum lycopersicum). Despite its substantial impact on crop yield, resistant or tolerant tomato germplasms have not been well documented, and the genetic basis of resistance to ToCV remains poorly understood. In this study, two wild accessions that were immune to ToCV and five accessions that were highly resistant to ToCV were identified from 58 tomato accessions. Additionally, a novel method was developed for evaluating resis

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Alzahib, Reem H., Hussein M. Migdadi, Abdullah A. Al Ghamdi, et al. "Exploring Genetic Variability among and within Hail Tomato Landraces Based on Sequence-Related Amplified Polymorphism Markers." Diversity 13, no. 3 (2021): 135. http://dx.doi.org/10.3390/d13030135.

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Landraces are valuable sources of genetic characteristics, which are of plant breeders’ interest to include in breeding programs for crop improvement. We assess the inter- and intra-genetic variability among 96 accessions representing three Hail tomato landrace using DNA-based marker sequence-related amplified polymorphism (SRAP). Seven SRAP primer combinations generated 55 alleles with a polymorphism of 100%, and an average of 7.86 polymorphic alleles per pair of primers. All primers showed an average of 0.68 polymorphic information content (PIC) value and discrimination power (DP) of 14.29.

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Grozeva, Stanislava, and Daniela Ganeva. "Effects of the drought induced stress on the flowering and the fruit set stages in tomato collection." Agricultural Sciences 16, no. 41 (2024): 29–38. http://dx.doi.org/10.22620/agrisci.2024.41.003.

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In the current study, a collection of forty-seven tomato accessions divided into five groups and the sensitive control MoneyMaker were evaluated based on their performance under the condition of reduced irrigation. The tomato accessions were exposed to water stress (50% reduced irrigation). The reproductive traits (flower and fruit number, fruit set) and fruit weights were used in assessing the drought tolerance. A decrease in the flower number, fruit number, the fruit set and fruit weight from 2nd to 5th inflorescence was observed in scarcity. Among the studied tomato groups, the indeterminat

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M, Amarnath, Shyamalamma S, Anilkumar C, and Brijesh Patil M.P. "Morphological, biochemical and SSR marker based genetic diversity and identification of trait-specific accessions in exotic germplasm collection of tomato (Solanum lycopersicum L.)." Environment Conservation Journal 23, no. 3 (2022): 113–21. http://dx.doi.org/10.36953/ecj.10862263.

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Characterization and evaluation of genetic base of exotic collections of germplasm hastens the process of crop breeding. Exotic collections of 25 tomato germplasm accessions along with a local check ‘Vaibhav’ were characterized at morphological, biochemical and DNA marker level in the University of Agricultural Sciences, Bangalore. Both morphometric and biochemical trait data divided the accessions into five clusters by model-based K-means cluster analysis. Accessions EC-620481 and EC-620554 were found highly diverse and promising to broaden the genetic base of breeding stocks in tomato. SSR m

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Park, Jiyeon, Siyoung Lee, Yunseo Choi, et al. "Germplasm Screening Using DNA Markers and Genome-Wide Association Study for the Identification of Powdery Mildew Resistance Loci in Tomato." International Journal of Molecular Sciences 23, no. 21 (2022): 13610. http://dx.doi.org/10.3390/ijms232113610.

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Powdery mildew (PM), caused by Oidium spp. in tomato, is a global concern that leads to diminished yield. We aimed to evaluate previously reported DNA markers linked to powdery mildew resistance (PMR) and identify novel quantitative trait loci (QTLs) for PMR through a genome-wide association study in tomato. Sequencing analysis of the internal transcribed spacer (ITS) of a PM strain (PNU_PM) isolated from Miryang, Gyeongnam, led to its identification as Oidium neolycopersici. Thereafter, a PM bioassay was conducted for a total of 295 tomato accessions, among which 24 accessions (4 S. lycopersi

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Han, Jung-Heon, Hak-Soon Choi, Jun-Dae Lee, et al. "Screening of Tomato Spotted Wilt Virus Resistance in Tomato Accessions." Korean Journal of Horticultural Science and Technology 30, no. 2 (2012): 171–77. http://dx.doi.org/10.7235/hort.2012.11126.

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Alatawi, Ibtisam, Haizheng Xiong, Hanan Alkabkabi, et al. "Genetic Diversity and Population Structure of Tomato (Solanum lycopersicum) from the USDA-GRIN Germplasm Collection." Agronomy 15, no. 1 (2024): 22. https://doi.org/10.3390/agronomy15010022.

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The genetic diversity and population structure of tomato (Solanum lycopersicum) were investigated to support breeding strategies and germplasm conservation. A total of 276 accessions from the USDA-GRIN collection were analyzed using single-nucleotide polymorphisms (SNPs) generated through genotyping by sequencing (GBS). After stringent filtering, 5162 high-quality polymorphic SNPs were retained for analysis. Population structure analysis revealed three distinct genetic groups (Q1, Q2, and Q3) among the accessions. Accessions from the USA, Asia, and Central and South America were assigned to al

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Vieira Nascimento, Mariana, Mylla Crysthyan Ribeiro Ávila, Ana Paula Oliveira Nogueira, and Abadia Dos Reis Nascimento. "RELATIVE IMPORTANCE OF TRAITS FOR THE DIVERSITY OF TOMATO CROP." REVISTA DE AGRICULTURA NEOTROPICAL 9, no. 2 (2022): e6917. http://dx.doi.org/10.32404/rean.v9i2.6917.

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Seed collections are an alternative for conserving plant genetic resources. The characterization of plant species contained in the collections has been carried out with the help of tables of botanical, morphological, and agronomic descriptors, which are mainly used without parameters referring to their effective contribution to variability, causing an increase in time and labor in the characterization of plants. This study aimed to evaluate the relative importance of the morphoagronomic traits in 85 low-growing tomato accessions from the collection of the Federal University of Goiás and estima

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Rajametov, Sherzod Nigmatullayevich, Kwanuk Lee, Hyo-Bong Jeong, Myeong-Cheoul Cho, Chun-Woo Nam, and Eun-Young Yang. "Physiological Traits of Thirty-Five Tomato Accessions in Response to Low Temperature." Agriculture 11, no. 8 (2021): 792. http://dx.doi.org/10.3390/agriculture11080792.

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Tomato is often exposed to diverse abiotic stresses and cold stress is one of harsh environmental stresses. Abnormal low temperature affects tomato growth and development, leading to, e.g., physiological disorders, flower drops, and abnormal fruit morphology, and causing a decrease in tomato yield and fruit quality. It is important to identify low temperature-(LT) tolerant tomato (Solanum lycopersicum L.) cultivars relying on different fruit types. In this study, our focus was to analyze the physiological traits of 35 tomato accessions with three different fruit types (cherry, medium, and larg

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Carrer Filho, Renato, Renata Maria Oliveira, Vanessa Duarte Dias, Geisiane Alves Rocha, Érico de Campos Dianese, and Marcos Gomes da Cunha. "Selection of tomato accessions resistant to Verticilium wilt1." Pesquisa Agropecuária Tropical 46, no. 4 (2016): 429–33. http://dx.doi.org/10.1590/1983-40632016v4643106.

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ABSTRACT Vascular wilting in tomato plants is an important disease caused by soil-inhabiting pathogens, especially Verticillium dahliae, which results in significant production losses. Control measures against this disease are difficult to implement due to intrinsic pathogen characteristics, such as high adaptability to the subterranean environment, in association with the host, and development of resistance structures that remain viable in the soil for long periods. The introgression of genes that express resistance is the main control measure and requires a continuous characterization progra

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Ghosh, Pritha, K. S. Jagadish, M. G. Purushothama, et al. "Performance of Wild Tomato Accessions and Elucidation of Resistance against Invasive Pest Phthorimaea absoluta Damage under Tropical Conditions." Horticulturae 9, no. 2 (2023): 143. http://dx.doi.org/10.3390/horticulturae9020143.

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Invasive tomato leaf miner, Phthorimaea absoluta causes serious damage and yield loss in tomato production in open-field and protected cultivation. Use of chemical pesticides is uneconomical and adversely affects humans and the environment. Host-plant resistance is an effective, economical and eco-friendly alternative to chemical pesticides. In this study, four wild tomato accessions from the World Vegetable Center along with one susceptible check were evaluated for their antixenosis and antibiosis effects on P. absoluta. The accessions VI037241 (Solanum galapagense) and VI037240 (S. cheesmani

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Satelis, Jaqueson Ferreira, Leonardo Silva Boiteux, and Ailton Reis. "Resistance to Septoria lycopersici in Solanum (section Lycopersicon) species and in progenies of S. lycopersicum × S. peruvianum." Scientia Agricola 67, no. 3 (2010): 334–41. http://dx.doi.org/10.1590/s0103-90162010000300012.

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Septoria leaf spot (Septoria lycopersici) is one of the major fungal diseases of tomatoes (Solanum lycopersicum) in tropical and subtropical regions with humid climates and/or in areas cultivated under sprinkler irrigation systems. Sources of resistance have been found in accessions of Solanum (section Lycopersicon) species. However, many of the described sources are not effective under Brazilian conditions. The objective of this work was to evaluate wild and cultivated Solanum (section Lycopersicon) germplasm to S. lycopersici isolates. A collection of 124 accessions was initially evaluated u

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Williams, Greetty, and Y. Anbuselvam. "Assessment of Genetic Divergence through Principal Component Analysis and Clustering in Tomato Germplasm Accessions." Environment and Ecology 41, no. 4D (2023): 3060–65. http://dx.doi.org/10.60151/envec/ylss4838.

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The base material of this study comprises of 104 tomato accessions including local landraces, varieties and germplasm collections. The collected tomato accessions were evaluated using 13 quantitative traits by Principal Component Analysis (PCA) and Hierarchial clustering. PCA was done to quantify diversity among the germplasm accessions and also the contribution of individual traits towards diversity. In our study, only the first four (PC1, PC2, PC3 and PC4) of the thirteen principal components yielded eigen value more than one indicating the greater influence of identified traits under study.

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Chiwina, Kenani E., Gehendra Bhattarai, Haizheng Xiong, et al. "Evaluation of Drought Tolerance in USDA Tomato Germplasm at Seedling Stage." Agronomy 14, no. 2 (2024): 380. http://dx.doi.org/10.3390/agronomy14020380.

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Drought, a crucial abiotic stressor, markedly reduces the growth and yield of tomato crops (Solanum lycopersicum L.). Consequently, adopting drought-resistant cultivars and implementing breeding programs to enhance drought tolerance have emerged as enduring solutions to alleviate the adverse effects of drought in various tomato cultivation regions. In this study, 68 United States Department of Agriculture (USDA) tomato accessions were assessed in a controlled greenhouse experiment, encompassing both water deficit treatment and a control group subjected to standard watering conditions. The expe

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Tahir, Nawroz Abdul-razzak, Kamaran Salh Rasul, Djshwar Dhahir Lateef, Rebwar Rafat Aziz, and Jalal Omer Ahmed. "In Vitro Evaluation of Iraqi Kurdistan Tomato Accessions Under Drought Stress Conditions Using Polyethylene Glycol-6000." Life 14, no. 11 (2024): 1502. http://dx.doi.org/10.3390/life14111502.

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Drought is one of the major abiotic stresses that affect plant growth and productivity, and plant stress responses are affected by both the intensity of stress and genotype. In Iraqi Kurdistan, tomato plants play a significant role in the country’s economy. Due to climate change, which causes soil moisture to diminish, the crop’s growth and yield have been dropping in recent years. Accordingly, the effects of simulated drought stress on germination parameters were assessed in 64 tomato accessions gathered from the Iraqi Kurdistan region in order to identify sensitive and tolerant accessions. I

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Iakovidis, Michail, Eleni Soumpourou, Elisabeth Anderson, Graham Etherington, Scott Yourstone, and Colwyn Thomas. "Genes Encoding Recognition of the Cladosporium fulvum Effector Protein Ecp5 Are Encoded at Several Loci in the Tomato Genome." G3: Genes|Genomes|Genetics 10, no. 5 (2020): 1753–63. http://dx.doi.org/10.1534/g3.120.401119.

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The molecular interactions between tomato and Cladosporium fulvum have been an important model for molecular plant pathology. Complex genetic loci on tomato chromosomes 1 and 6 harbor genes for resistance to Cladosporium fulvum, encoding receptor like-proteins that perceive distinct Cladosporium fulvum effectors and trigger plant defenses. Here, we report classical mapping strategies for loci in tomato accessions that respond to Cladosporium fulvum effector Ecp5, which is very sequence-monomorphic. We screened 139 wild tomato accessions for an Ecp5-induced hypersensitive response, and in five

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Verhoeven, J. Th J., C. C. C. Jansen, A. W. Werkman, and J. W. Roenhorst. "First Report of Tomato chlorotic dwarf viroid in Petunia hybrida from the United States of America." Plant Disease 91, no. 3 (2007): 324. http://dx.doi.org/10.1094/pdis-91-3-0324b.

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In November 2005, 13 accessions of Petunia hybrida from the United States of America entered the post-entry quarantine station of the Plant Protection Service in the Netherlands. The plants were inspected and tested for quarantine organisms according to Directives 95/44 and 97/46 of the European Union. No virus and viroid symptoms were observed in the imported plants or in mechanically inoculated plants of Chenopodium quinoa, Nicotiana benthamiana, and N. occidentalis-P1 (3). Testing for pospiviroids by return-polyacrylamide gel electrophoresis (1) and reverse transcriptase-PCR with universal

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