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Journal articles on the topic 'Insect biotype'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Chu, D., C. S. Gao, P. De Barro, Y. J. Zhang, F. H. Wan, and I. A. Khan. "Further insights into the strange role of bacterial endosymbionts in whitefly, Bemisia tabaci: Comparison of secondary symbionts from biotypes B and Q in China." Bulletin of Entomological Research 101, no. 4 (2011): 477–86. http://dx.doi.org/10.1017/s0007485311000083.

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AbstractThe percentage infection of secondary symbionts (SS) (Wolbachia, Arsenophonus, Rickettsia, Hamiltonella, Fritschea and Cardinium) in the exotic Bemisia tabaci (Genn.) invaders, commonly known as biotypes B and Q from China, were determined by PCR. In total, 373 biotype B and 1830 biotype Q individuals were screened for the presence of SS. Biotype B was more abundant than biotype Q from 2005 to 2006, and biotype Q was more abundant from 2007 to 2009. Each of the SS, with the exception of Fritschea, was detected in both biotypes B and Q; Fritschea was found in none of the samples examine

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2

Crowder, D. W., A. R. Horowitz, B. E. Tabashnik, et al. "Analyzing haplodiploid inheritance of insecticide resistance in whitefly biotypes." Bulletin of Entomological Research 99, no. 3 (2009): 307–15. http://dx.doi.org/10.1017/s0007485308006330.

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AbstractWe developed new methods for analyzing inheritance of insecticide resistance in haplodiploid arthropods and applied them to elucidate resistance of the whitefly Bemisia tabaci (Gennadius) to an insect growth regulator, pyriproxyfen. Two invasive biotypes of this devastating crop pest, the B biotype in Arizona and the Q biotype in Israel, have evolved resistance to pyriproxyfen. Here, we incorporated data from laboratory bioassays and crossing procedures exploiting haplodiploidy into statistical and analytical models to estimate the number of loci affecting pyriproxyfen resistance in st

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3

Gottlieb, Yuval, Einat Zchori-Fein, Netta Mozes-Daube, et al. "The Transmission Efficiency of Tomato Yellow Leaf Curl Virus by the Whitefly Bemisia tabaci Is Correlated with the Presence of a Specific Symbiotic Bacterium Species." Journal of Virology 84, no. 18 (2010): 9310–17. http://dx.doi.org/10.1128/jvi.00423-10.

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ABSTRACT Tomato yellow leaf curl virus (TYLCV) (Geminiviridae: Begomovirus) is exclusively vectored by the whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). TYLCV transmission depends upon a 63-kDa GroEL protein produced by the vector's endosymbiotic bacteria. B. tabaci is a species complex comprising several genetically distinct biotypes that show different secondary-symbiont fauna. In Israel, the B biotype harbors Hamiltonella, and the Q biotype harbors Wolbachia and Arsenophonus. Both biotypes harbor Rickettsia and Portiera (the obligatory primary symbionts). The aim of this stu

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4

Shankarappa, K. S., K. T. Rangaswamy, D. S. Aswatha Narayana, et al. "Development of silverleaf assay, protein and nucleic acid-based diagnostic techniques for the quick and reliable detection and monitoring of biotype B of the whitefly, Bemisia tabaci (Gennadius)." Bulletin of Entomological Research 97, no. 5 (2007): 503–13. http://dx.doi.org/10.1017/s0007485307005251.

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AbstractThe aim of this study was to develop and optimize silverleaf bioassay, esterase analysis and PCR-based techniques to distinguish quickly and reliably biotype B of the whitefly, Bemisia tabaci (Gennadius), from Indian indigenous biotypes. Zucchini and squash readily develop silverleaf symptoms upon feeding by the B biotype, but they are not readily available in Indian markets. A local pumpkin variety ‘Big’ was, therefore, used in silverleaf assay, which developed symptoms similar to those on zucchini and squash and can be used reliably to detect B biotype. Analysis of non-specific ester

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5

Gerard, P. J., M. R. McNeill, B. I. P. Barratt, and S. A. Whiteman. "Rationale for release of the Irish strain of Microctonus aethiopoides for biocontrol of clover root weevil." New Zealand Plant Protection 59 (August 1, 2006): 285–89. http://dx.doi.org/10.30843/nzpp.2006.59.4471.

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A European biotype of Microctonus aethiopoides was identified as the best candidate biocontrol agent for Sitona lepidus a serious New Zealand pasture pest A Moroccan biotype was already present throughout the country and hence there was no requirement to obtain Hazardous Substances and New Organisms (HSNO) Act approval to release new biotypes However as research had shown mating between the two biotypes produced hybrids with poor efficacy against target hosts and that the Moroccan biotype attacked several native weevil genera serious reservations were held about introducing the European biotyp

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6

Elbaz, M., N. Lahav, and S. Morin. "Evidence for pre-zygotic reproductive barrier between the B and Q biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae)." Bulletin of Entomological Research 100, no. 5 (2010): 581–90. http://dx.doi.org/10.1017/s0007485309990630.

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AbstractThe degree of reproductive isolation between the B and Q biotypes of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) is currently not clear. Laboratory experiments have shown that the two biotypes are capable of producing viable F1 hybrids but that these females are sterile as their F2 generation failed to develop, indicating, most likely, a post-zygotic reproductive barrier. Here, we confirm, by molecular and ecological tools, that the B and Q biotypes of Israel are genetically isolated and provide two independent lines of evidence that support the existence of a pre-zygotic repr

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7

Dumas, B. A., and A. J. Mueller. "DISTRIBUTION OF BIOTYPE C AND E GREENBUGS1 ON WHEAT IN ARKANSAS2." Journal of Entomological Science 21, no. 1 (1986): 38–42. http://dx.doi.org/10.18474/0749-8004-21.1.38.

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Surveys were made in 1984 and 1985 to determine the distribution of greenbug, Schizaphis graminum (Rondani), biotypes C and E on wheat in Arkansas. Results indicate that biotype C is the dominant greenbug biotype present on Arkansas wheat but that biotype E is also widely distributed throughout the wheat producing areas. The percent of biotype E varied from county to county (0.0 – 59.0%). Biotype E was detected in 24.9% of the samples taken during the two year survey of major wheat producing areas in Arkansas.

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8

Farkas, Péter, Zsuzsanna György, Annamária Tóth, Annamária Sojnóczki, and József Fail. "A simple molecular identification method of the Thrips tabaci (Thysanoptera: Thripidae) cryptic species complex." Bulletin of Entomological Research 110, no. 3 (2019): 397–405. http://dx.doi.org/10.1017/s0007485319000762.

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AbstractThe onion thrips (Thrips tabaci Lindeman, 1889) is a key pest of a wide range of crops because of its ecological attributes such as polyphagy, high reproduction rate, ability to transmit tospoviruses and resistance to insecticides. Recent studies revealed that T. tabaci is a cryptic species complex and it has three lineages (leek-associated arrhenotokous L1-biotype, leek-associated thelytokous L2-biotype and tobacco-associated arrhenotokous T-biotype), however, the adults remain indistinguishable. T. tabaci individuals were collected from different locations of Hungary to create labora

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9

Drost, Y. C., J. C. van Lenteren, and H. J. W. van Roermund. "Life-history parameters of different biotypes ofBemisia tabaci(Hemiptera: Aleyrodidae) in relation to temperature and host plant: a selective review." Bulletin of Entomological Research 88, no. 3 (1998): 219–30. http://dx.doi.org/10.1017/s0007485300025840.

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AbstractLife-history parameters of different biotypes of the whiteflyBemisia tabaci(Gennadius) species complex were reviewed. This included the B-biotype ofB. tabaci, identified asB. argentifolii(Bellows & Perring). Comparisons were made among different biotypes on cotton, among host plants for biotype B and among the whitefly speciesB. tabaciandTrialeurodes vaporariorum(Westwood), the greenhouse whitefly. The biotype identification of different populations ofB. tabaciwas summarized in a table. Biotypes discussed were A, B, Indian and biotypes of the Old World group. Temperature dependent

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10

Gray, Stewart M., Dawn M. Smith, Lia Barbierri, and John Burd. "Virus Transmission Phenotype Is Correlated with Host Adaptation Among Genetically Diverse Populations of the Aphid Schizaphis graminum." Phytopathology® 92, no. 9 (2002): 970–75. http://dx.doi.org/10.1094/phyto.2002.92.9.970.

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Schizaphis graminum is an important insect pest of several grain crops and an efficient vector of cereal-infecting luteoviruses and poleroviruses. We examined the virus transmission characteristics of several distinct populations and various developmental stages of the aphid. Seven well-characterized S. graminum biotypes maintained at the USDA-ARS laboratory in Stillwater, OK, and two biotypes maintained in New York (one collected in Wisconsin and the other collected in South Carolina) were tested for their ability to transmit five viruses that cause barley yellow dwarf disease (BYD). Four of

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Katiyar, S. K., G. Chandel, Y. Tan, et al. "Biodiversity of Asian rice gall midge (Orseolia oryzae Wood Mason) from five countries examined by AFLP analysis." Genome 43, no. 2 (2000): 322–32. http://dx.doi.org/10.1139/g99-119.

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Amplified fragment length polymorphism (AFLP) analysis was used to assess the biodiversity of one of the most important dipteran pests of cereals, the Asian rice gall midge (Orseolia oryzae Wood Mason). Larvae and pupae were collected at 15 locations in five Asian countries and preserved in 95% ethanol for storage, shipment, and DNA extraction using cetyltrimethylammonium bromide (CTAB). Although only ~1 µg of DNA was extracted from a single pupa or larva, the use of several AFLP primers in various combinations meant that this amount of DNA was sufficient to allow many DNA fingerprints to be m

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12

Bisia, Marina, Claire L. Jeffries, Ioanna Lytra, Antonios Michaelakis, and Thomas Walker. "A Comparison of Adult Mosquito Trapping Methods to Assess Potential West Nile Virus Mosquito Vectors in Greece during the Onset of the 2018 Transmission Season." Insects 11, no. 6 (2020): 329. http://dx.doi.org/10.3390/insects11060329.

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West Nile virus (WNV) threatens the health of humans and equines worldwide. Culex (Cx.) pipiens complex mosquitoes are major vectors but numerous other species have been implicated. Due to variations in blood-feeding behaviour, Cx. pipiens biotypes and hybrids influence transmission, from enzootic cycles (between mosquitoes and birds), to spill-over transmission to humans and equines. In this study, mosquitoes were collected in May–June 2018 during the early period of the transmission season from two regional units of Greece, where WNV cases had been reported in the previous four years (Palaio

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13

Khasdan, V., I. Levin, A. Rosner, et al. "DNA markers for identifying biotypes B and Q of Bemisia tabaci (Hemiptera: Aleyrodidae) and studying population dynamics." Bulletin of Entomological Research 95, no. 6 (2005): 605–13. http://dx.doi.org/10.1079/ber2005390.

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AbstractThe two most widespread biotypes of Bemisia tabaci (Gennadius) in southern Europe and the Middle East are referred to as the B and Q-type, which are morphologically indistinguishable. In this study various DNA markers have been developed, applied and compared for studying genetic diversity and distribution of the two biotypes. For developing sequence characterized amplified regions (SCAR) and cleaved amplified polymorphic sequences (CAPS) techniques, single random amplified polymorphic DNA (RAPD) fragments of B and Q biotypes, respectively, were used. The CAPS were investigated on the

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14

Demichelis, Stefano, Domenico Bosco, Aulo Manino, Daniele Marian, and Piero Caciagli. "DISTRIBUTION OF BEMISIA TABACI (HEMIPTERA: ALEYRODIDAE) BIOTYPES IN ITALY." Canadian Entomologist 132, no. 4 (2000): 519–27. http://dx.doi.org/10.4039/ent132519-4.

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AbstractEsterase banding patterns in native polyacrylamide gel electrophoresis, squash silver leaf (SSL) induction, and tomato yellow leaf curl begomovirus-Sardinia (TYLCV-Sar) transmission capability were investigated to evaluate variations among populations of Bemisia tabaci (Gennadius) from Italy and to relate their distribution to their geographic origin. Adults of the B biotype, adults of the Q-like biotype (which is similar to a Spanish biotype), and adults without esterase bands were found. The B biotype has been found in Italy since 1989. Two populations, including mainly B and Q-like

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15

Martinez, Sueli S., Alfredo O. R. de Carvalho, Luiz G. Vieira, Liliane M. Nunes, and Anésio Bianchini. "Identification, geographical distribution and host plants of Bemisia tabaci (Genn.) biotypes (Homoptera: Aleyrodidae) in the State of Paraná, Brazil." Anais da Sociedade Entomológica do Brasil 29, no. 3 (2000): 597–603. http://dx.doi.org/10.1590/s0301-80592000000300023.

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This work was carried out in order to identify Bemisia tabaci (Genn.) biotypes present in the state of Paraná and to determine their geographical distribution and host plants. About 50 adults were collected in several host crops, weeds and ornamental plants in North, Northwest, Northeast, West and Central areas of the state, from January to May, 1998 and 1999. The species were identified by means of RAPD-PCR, using the primer Operon H-16. Whitefly populations were detected mainly from February on, in both years, seldom achieving more than one adult per leaf. The insect was found in only 66% of

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16

Tsagkarakou, A., C. S. Tsigenopoulos, K. Gorman, J. Lagnel, and I. D. Bedford. "Biotype status and genetic polymorphism of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) in Greece: mitochondrial DNA and microsatellites." Bulletin of Entomological Research 97, no. 1 (2007): 29–40. http://dx.doi.org/10.1017/s000748530700466x.

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AbstractThe genetic polymorphism and the biotype identity of the tobacco whitefly Bemisia tabaci (Gennadius) have been studied in population samples taken from different localities within Greece from cultivated plants growing in greenhouses or in open environments and from non-cultivated plants. Two different approaches were used: sequencing of the mitochondrial cytochrome oxidase I (mtCOI) gene and genotyping using microsatellite markers. Analyses of the mtCOI sequences revealed a high homogeneity between the Greek samples which clustered together with Q biotype samples that had been collecte

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Scott, I. A. W., P. J. Workman, G. M. Drayton, and G. M. Burnip. "First record of Bemisia tabaci biotype Q in New Zealand." New Zealand Plant Protection 60 (August 1, 2007): 264–70. http://dx.doi.org/10.30843/nzpp.2007.60.4601.

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In January 2006 a grower reported failure to control whitefly on greenhouse capsicums in Karaka South Auckland despite high release rates of the biological control agent Encarsia formosa The whitefly was identified morphologically as Bemisia tabaci and capsicum represents a new host record for this species in New Zealand Bemisia tabaci is polyphagous and 24 biotypes are currently recognised worldwide Biotypes B and Q have attracted international attention in the past two decades because of their rapid global spread They are morphologically indistinguishable DNA sequence analyses of samples col

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Hilje, Luko, and Philip A. Stansly. "Preferencia de hospedantes por dos biotipos de Bemisia tabaci en Costa Rica y Florida." Agronomía Mesoamericana 29, no. 3 (2018): 585. http://dx.doi.org/10.15517/ma.v29i3.31742.

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Despite being a polyphagous insect, Bemisia tabaci (Gennadius) shows a marked preference for certain hosts, which in turn may depend upon the particular whitefly biotype involved. The objective of this research was to compare preference towards a selected group of host crops, by two biotypes of Bemisia tabaci, New World in Costa Rica, and MEAM1 in Florida. Therefore, choice experiments were conducted in greenhouses both at Turrialba (Costa Rica) and Immokalee (Florida), in April and June-September, 1998, respectively. The same crops and varieties were exposed to the New World and MEAM1 biotype

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Srivastava, P. N., Y. Gao, J. Levesque, and J. L. Auclair. "Differences in amino acid requirements between two biotypes of the pea aphid, Acyrthosiphon pisum." Canadian Journal of Zoology 63, no. 3 (1985): 603–6. http://dx.doi.org/10.1139/z85-087.

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Amino acid requirements of two biotypes (C and J) of the pea aphid, Acyrthosiphon pisum (Harris), were studied by deleting single amino acids from a chemically defined liquid diet. Amino acids found to be essential for growth and (or) reproduction of biotype C were arginine, histidine, leucine, lysine, methionine, threonine, and tryptophan, and for biotype J, histidine, methionine, phenylalanine, threonine, and valine. Two generations were needed on deficient diets to demonstrate the essentiality of some of the amino acids. This appears to be a rare example of two insect populations within one

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Shufran, K. A., and M. E. Whalon. "Genetic analysis of brown planthopper biotypes using random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR)." Insect Science and Its Application 16, no. 1 (1995): 27–33. http://dx.doi.org/10.1017/s1742758400018282.

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AbstractRandom amplified polymorphic DNA (RAPD) amplified by the polymerase chain reaction (PCR) was used to estimate the relatedness of three biotypes of brown planthopper, Nilaparvata lugens (Stål), from the Philippines. Each individual brown planthopper had a unique set of RAPD bands, but no bands were diagnostic for any one biotype. Brown planthopper types 1, 2 and 3 were genetically homogeneous. This supports results of other studies which conclude that brown planthopper biotypes are not sub-specific categories, but merely represent individual variation for virulence to rice cultivars.

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Sun, D. B., J. Xu, J. B. Luan, and S. S. Liu. "Reproductive incompatibility between the B and Q biotypes of the whitefly Bemisia tabaci in China: genetic and behavioural evidence." Bulletin of Entomological Research 101, no. 2 (2010): 211–20. http://dx.doi.org/10.1017/s0007485310000416.

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AbstractThe B and Q ‘biotypes’ of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) have been invading many parts of the world and causing severe damage to a range of crops. Recent phylogenetic analyses indicate that B and Q are cryptic species within the B. tabaci species complex. Although various attempts have been made to examine the reproductive compatibility between B and Q, few studies have tested the fertility of the F1 females and so the extent of possible gene flow remains unclear. In this study, we conducted a series of crossing experiments and behavioural observations to examine i

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Ratcliffe, Roger H., Herbert W. Ohm, Fred L. Patterson, and Sue E. Cambron. "Biotype Composition of Hessian fly (Diptera: Cecidomiidae) Populations from Arkansas, Georgia, Illinois, North Carolina and Virginia." Journal of Entomological Science 32, no. 2 (1997): 154–64. http://dx.doi.org/10.18474/0749-8004-32.2.154.

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Fourteen populations of Hessian fly, Mayetiola destructor (Say), from Arkansas, Georgia, Illinois, North Carolina, and Virginia were evaluated for biotype composition, and two Arkansas populations were tested for response to Hessian fly resistance genes or gene combinations H3, H5, H6, H7H8, and H9 to H19 in wheat. The biotype composition of Hessian fly populations was estimated by confining individual gravid females on the four wheat differential cultivars ‘Monon’ (H3), ‘Magnum’ (H5), ‘Caldwell’ (H6), and ‘Seneca’ (H7H8). The response of Arkansas fly populations to resistance genes was evalua

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Blackman, R. L., and M. Cahill. "The karyotype of Bemisia tabaci (Hemiptera: Aleyrodidae)." Bulletin of Entomological Research 88, no. 2 (1998): 213–15. http://dx.doi.org/10.1017/s0007485300025785.

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Whiteflies of the Bemisia tabaci (Gennadius) group are a major and increasing problem for agriculture throughout the world. In particular, the appearance and rapid spread of a highly virulent new form (silver-leaf whitefly, or B-biotype; Brown et ah, 1995), and recognition that the problem involves a complex of sibling species, host races and/or biotypes has stimulated intensive multidisciplinary research on this insect in recent years (Gerling & Mayer, 1996).

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Wang, Da, Xiaoqin Shi, Deguang Liu, Yujing Yang, and Zheming Shang. "Transcriptome Profiling Revealed Potentially Critical Roles for Digestion and Defense-Related Genes in Insects’ Use of Resistant Host Plants: A Case Study with Sitobion Avenae." Insects 11, no. 2 (2020): 90. http://dx.doi.org/10.3390/insects11020090.

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Using host plant resistance (HPR) in management of insect pests is often environmentally friendly and suitable for sustainable development of agricultural industries. However, this strategy can be limited by rapid evolution of insect populations that overcome HPR, for which the underlying molecular factors and mechanisms are not well understood. To address this issue, we analyzed transcriptomes of two distinct biotypes of the grain aphid, Sitobion avenae (Fabricius), on wheat and barley. This analysis revealed a large number of differentially expressed genes (DEGs) between biotypes 1 and 3 on

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Savoi, Stefania, Markus W. Eitle, Harald Berger, et al. "Comparative Transcriptome Analysis of Two Root-Feeding Grape Phylloxera (D. vitifoliae) Lineages Feeding on a Rootstock and V. vinifera." Insects 11, no. 10 (2020): 691. http://dx.doi.org/10.3390/insects11100691.

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Grape phylloxera is one of the most dangerous insect pests for worldwide viticulture. The leaf- and root-galling phylloxerid has been managed by grafting European grapevines onto American rootstock hybrids. Recent reports pinpoint the appearance of host-adapted biotypes, but information about the biomolecular characteristics underlying grape phylloxera biotypisation and its role in host performance is scarce. Using RNA-sequencing, we sequenced the transcriptome of two larval stages: L1 (probing) and L2-3 (feeding) larvae of two root-feeding grape phylloxera lineages feeding on the rootstock Te

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Bansal, Raman, M. A. Rouf Mian, and Andy Michel. "Characterizing Resistance to Soybean Aphid (Hemiptera: Aphididae): Antibiosis and Antixenosis Assessment." Journal of Economic Entomology 114, no. 3 (2021): 1329–35. http://dx.doi.org/10.1093/jee/toab038.

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Abstract Host-plant resistance (HPR) remains a vital tool to manage soybean aphid (Aphis glycines Matsumura), a major pest of soybean in Midwestern United States and southern Canada. HPR can be overcome by virulent biotypes of A. glycines; thus, in order to increase the durability of resistant cultivars, HPR needs to be deployed strategically. To improve the strategic deployment, a complete understanding of HPR in existing resistant germplasm will help ensure HPR success. In this study, we characterized HPR soybean to determine antibiosis and antixenosis categories of resistance to different b

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Wang, Da, Xiaoqin Shi, Deguang Liu, Yujing Yang, and Zheming Shang. "Genetic Divergence of Two Sitobion avenae Biotypes on Barley and Wheat in China." Insects 11, no. 2 (2020): 117. http://dx.doi.org/10.3390/insects11020117.

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Host plant affinity and geographic distance can play critical roles in the genetic divergence of insect herbivores and evolution of insect biotypes, but their relative importance in the divergence of insect populations is still poorly understood. We used microsatellite markers to test the effects of host plant species and geographic distance on divergence of two biotypes of the English grain aphid, Sitobion avenae (Fabricius). We found that clones of S. avenae from western provinces (i.e., Xinjiang, Gansu, Qinghai and Shaanxi) had significantly higher genetic diversity than those from eastern

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Johnson, J. W., G. D. Buntin, J. E. Foster, J. J. Roberts, and P. L. Raymer. "RESPONSE OF TRITICALE TO THE HESSIAN FLY (DIPTERA: CECIDOMYIIDAE)." Journal of Entomological Science 22, no. 1 (1987): 51–54. http://dx.doi.org/10.18474/0749-8004-22.1.51.

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Hessian fly infestation on triticale (X triticosecale Wittmack) has not been previously reported. Severe infestations on wheat in Georgia prompted the evaluation of triticale germplasm in the greenhouse to known biotypes of Hessian fly and in the field to natural populations. Susceptible triticale plants showed the same characteristics as susceptible wheat plants. ‘Beagle 82’, ‘Wytch’, and ‘Marta’, as well as several experimental lines, were highly resistant to biotype D Hessian fly. ‘M2A-Beagle’ and ‘Great Northern’ were the only entries highly resistant to biotype E, the predominant biotype

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Marilene, Fancelli, and José Djair Vendramim. "Development of Bemisia tabaci (Gennadius,1889) biotype B on Lycopersicon spp. genotypes." Scientia Agricola 59, no. 4 (2002): 665–69. http://dx.doi.org/10.1590/s0103-90162002000400007.

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Whiteflies are phytophagous insects, whose nymphs and adults suck the phloem sap, causing direct damage due to host plant weakness. In tomato (Lycopersicon spp.) crops, they are important vectors of limiting fitoviruses. The objective of this study was to determine the effects of Lycopersicon spp. genotypes on Bemisia tabaci (Gennadius, 1889) biotype B development under greenhouse conditions. The evaluated genotypes were LA462 (L. peruvianum), LA716 (L. pennellii), LA1584 (L. pimpinellifolium), LA1609 (L. peruvianum), LA1739 (L. hirsutum), P25 (L. esculentum), PI134417 (L. hirsutum f. glabratu

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Mathenge, C. W., P. Holford, J. H. Hoffmann, H. G. Zimmermann, R. N. Spooner-Hart, and G. A. C. Beattie. "Hybridization between Dactylopius tomentosus (Hemiptera: Dactylopiidae) biotypes and its effects on host specificity." Bulletin of Entomological Research 100, no. 3 (2010): 331–38. http://dx.doi.org/10.1017/s0007485309990344.

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AbstractDactylopius tomentosus is composed of biotypes adapted to different Cylindropuntia species. One biotype is an important biological control agent of C. imbricata in South Africa while another has the potential for the control of C. fulgida var. fulgida. These two weed species occur in sympatry in some areas of South Africa, so the introduction of the second biotype could result in hybridization, which, in turn, could impact on the biological control programs through altered host specificity and fitness of the hybrids. To anticipate what might happen, reciprocal crosses were made between

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Müller, Fritz Paul. "Biotype Formation and Sympatric Speciation in Aphids (Homoptera: Aphidinea)." Entomologia Generalis 10, no. 3-4 (1985): 161–81. http://dx.doi.org/10.1127/entom.gen/10/1985/161.

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Wu, Y. Q., Yinghua Huang, C. G. Tauer, and David R. Porter. "Genetic diversity of sorghum accessions resistant to greenbugs as assessed with AFLP markers." Genome 49, no. 2 (2006): 143–49. http://dx.doi.org/10.1139/g05-095.

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Sorghum, Sorghum bicolor (L.) Moench, is the fifth most important cereal crop grown worldwide and the fourth in the United States. Greenbug, Schizaphis graminum (Rondani), is a major insect pest of sorghum with several biotypes reported to date. Greenbug biotype I is currently the most prevalent and most virulent on sorghum plants. Breeding for resistance is an effective way to control greenbug damage. A successful breeding program relies in part upon a clear understanding of breeding materials. However, the genetic diversity and relatedness among the greenbug biotype I resistant accessions co

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Nanayakkara, Dhanesha, Dimanthi Jayatilake, and Suranga Kodithuwakku. "Development of a single nucleotide polymorphism-based DNA marker for fall armyworm (Lepidoptera: Noctuidae) biotyping: a case study from the fall armyworm outbreak in Sri Lanka." Canadian Entomologist 152, no. 6 (2020): 762–71. http://dx.doi.org/10.4039/tce.2020.52.

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AbstractCrop damage caused by fall armyworm (FAW), Spodoptera frugipera J.E. Smith (1797) (Lepidoptera: Noctuidae), has generated concern among agriculturists globally. In 2019, FAW was first reported in Sri Lanka, where it caused significant losses to corn crops. However, given that the two FAW biotypes – “rice strain” (R-FAW) and “corn strain” (C-FAW) – are morphologically identical, the biotype(s) present in Sri Lanka were unknown. The current study used the mitochondrial cytochrome c oxidase subunit I gene (mt-CO1) of FAW to biotype nine FAW samples collected in Sri Lanka. The resulting mo

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Badji, Cesar Auguste, Zoé Sol-Mochkovitch, Charlotte Fallais, et al. "Alarm Pheromone Responses Depend on Genotype, but Not on the Presence of Facultative Endosymbionts in the Pea Aphid Acyrthosiphon pisum." Insects 12, no. 1 (2021): 43. http://dx.doi.org/10.3390/insects12010043.

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Aphids use an alarm pheromone, E-β farnesene (EBF), to warn conspecifics of potential danger. The antennal sensitivity and behavioural escape responses to EBF can be influenced by different factors. In the pea aphid, Acyrthosiphon pisum, different biotypes are adapted to different legume species, and within each biotype, different genotypes exist, which can carry or not Hamiltonella defensa, a bacterial symbiont that can confer protection against natural enemies. We investigate here the influence of the aphid genotype and symbiotic status on the escape behaviour using a four-way olfactometer a

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Badji, Cesar Auguste, Zoé Sol-Mochkovitch, Charlotte Fallais, et al. "Alarm Pheromone Responses Depend on Genotype, but Not on the Presence of Facultative Endosymbionts in the Pea Aphid Acyrthosiphon pisum." Insects 12, no. 1 (2021): 43. http://dx.doi.org/10.3390/insects12010043.

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Aphids use an alarm pheromone, E-β farnesene (EBF), to warn conspecifics of potential danger. The antennal sensitivity and behavioural escape responses to EBF can be influenced by different factors. In the pea aphid, Acyrthosiphon pisum, different biotypes are adapted to different legume species, and within each biotype, different genotypes exist, which can carry or not Hamiltonella defensa, a bacterial symbiont that can confer protection against natural enemies. We investigate here the influence of the aphid genotype and symbiotic status on the escape behaviour using a four-way olfactometer a

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Drayton, G. M., D. A. J. Teulon, P. J. Workman, and I. A. W. Scott. "The Christmas dispersal of Bemisia tabaci (Gennadius) in New Zealand." New Zealand Plant Protection 62 (August 1, 2009): 310–14. http://dx.doi.org/10.30843/nzpp.2009.62.4822.

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In 2006 Bemisia tabaci biotype Q was identified in New Zealand The Christmas trade in poinsettias is implicated in the recent rapid dispersal of B tabaci biotype Q through North America Retail outlets were surveyed during December 2006 and 2007 to investigate whether this may be a pathway for dispersal in New Zealand A PCRbased diagnostic tool confirmed the presence of B tabaci biotype Q on poinsettias purchased in both Christchurch and Auckland However results indicated that abundance varied between the regions years and propagation nurseries In 2006 169 and three adult whitefly were collecte

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Horowitz, A. R., I. Denholm, K. Gorman, J. L. Cenis, S. Kontsedalov, and I. Ishaaya. "Biotype Q ofBemisia tabaci identified in Israel." Phytoparasitica 31, no. 1 (2003): 94–98. http://dx.doi.org/10.1007/bf02979772.

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Tokumaru, Susumu, and Yoshikimi Hayashida. "Pesticide Susceptibility of Q-biotype Bemisia tabaci (Hemiptera: Aleyrodidae)." Japanese Journal of Applied Entomology and Zoology 54, no. 1 (2010): 13–21. http://dx.doi.org/10.1303/jjaez.2010.13.

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Behura, Susanta K., Suresh Nair, and Madan Mohan. "Polymorphisms flanking the mariner integration sites in the rice gall midge (Orseolia oryzae Wood-Mason) genome are biotype-specific." Genome 44, no. 6 (2001): 947–54. http://dx.doi.org/10.1139/g01-090.

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In an effort to study genome diversity within and between the Indian biotypes of the Asian rice gall midge, Orseolia oryzae, a major insect pest of rice, we made use of mariner transposable element integration site polymorphisms. Using degenerate primers, the design of which is based on mariner sequences, we amplified a ca. 450 bp mariner sequence from the rice gall midge. The mariner sequence showed homology with that of a mariner element isolated from the Hessian fly, Mayetiola destructor, a major dipteran pest of wheat. Southern hybridization, using this mariner fragment as a probe, reveale

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Bhusal, S. J., R. L. Koch, and A. J. Lorenz. "Variation in Soybean Aphid (Hemiptera: Aphididae) Biotypes Within Fields." Journal of Economic Entomology 114, no. 3 (2021): 1336–44. http://dx.doi.org/10.1093/jee/toab058.

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Abstract Soybean aphid (Aphis glycines Matsumura (Hemiptera: Aphididae)) has been a major pest of soybean in North America since its detection in this continent in 2000 and subsequent spread. Although several aphid resistance genes have been identified, at least four soybean aphid biotypes have been discovered, with three of them being virulent on soybean cultivars with certain soybean aphid resistance genes. These biotypes are known to vary across years and locations, but information on their variation within single fields is limited. An investigation was conducted to study the variation of s

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Khan, S. A., M. Murugan, S. Starkey, A. Manley, and C. M. Smith. "Inheritance and Categories of Resistance in Wheat to Russian Wheat Aphid (Hemiptera: Aphididae) Biotype 1 and Biotype 2." Journal of Economic Entomology 102, no. 4 (2009): 1654–62. http://dx.doi.org/10.1603/029.102.0433.

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LI, Zhengxi, Dunxiao HU, Yue SONG, and Zuorui SHEN. "Molecular differentiation of the B biotype from other biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae), based on internally transcribed spacer 1 sequences." European Journal of Entomology 102, no. 2 (2005): 293–97. http://dx.doi.org/10.14411/eje.2005.041.

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Schweizer, Matthias, and Ernst Peterhans. "Noncytopathic Bovine Viral Diarrhea Virus Inhibits Double-Stranded RNA-Induced Apoptosis and Interferon Synthesis." Journal of Virology 75, no. 10 (2001): 4692–98. http://dx.doi.org/10.1128/jvi.75.10.4692-4698.2001.

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ABSTRACT Bovine viral diarrhea virus (BVDV), a pestivirus of theFlaviviridae family, is an economically important cattle pathogen with a worldwide distribution. Both noncytopathic (ncp) and cytopathic (cp) biotypes of BVDV can be isolated from persistently infected cattle suffering from the lethal mucosal disease. The cp biotype correlates with the production of the NS3 nonstructural protein, which in the corresponding ncp biotype is present in its uncleaved form, NS23. Previously, we have shown that cp but not ncp BVDV induces the formation of α/β interferons in bovine macrophages. In this st

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Kudagamage, C., J. E. Foster, P. L. Taylor, and B. H. Chen. "Biotypes of the Hessian Fly (Diptera: Cecidomyiidae) Identified in the Southeastern United States2." Journal of Entomological Science 25, no. 4 (1990): 575–80. http://dx.doi.org/10.18474/0749-8004-25.4.575.

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Ten samples of field populations of Hessian fly, Mayetiola destructor (Say), from four southeastern states were evaluated in the laboratory for biotype composition. This study reports the first identification of biotypes GP, G, J. L. M, and O from the south. The H3 gene no longer provides effective resistance in any of the areas sampled. However, the H7H8 genes continue to provide protection in many areas sampled. The data show that the H6 and H5 genes continue to be effective in many areas sampled.

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McFarlane, J. A., I. Gudrups, and H. Fletcher. "Biotype differences affecting the pest status of stored‐grain insects." International Journal of Pest Management 39, no. 1 (1993): 35–43. http://dx.doi.org/10.1080/09670879309371756.

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Sugiyama, Keitaro, Takashi Noda, Taro Maeda, and Norihide Hinomoto. "Comparison of the host-handling behavior of Eretmocerus mundus on Bemisia tabaci B biotype, Q biotype and Trialeurodes vaporariorum." BioControl 58, no. 5 (2013): 615–23. http://dx.doi.org/10.1007/s10526-013-9521-3.

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Rahman, A., T. K. James, and M. R. Trolove. "Chemical control options for the dicamba resistant biotype of fathen (Chenopodium album)." New Zealand Plant Protection 61 (August 1, 2008): 287–91. http://dx.doi.org/10.30843/nzpp.2008.61.6808.

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Three field trials were conducted over two growing seasons to evaluate the efficacy of potential selective postemergence herbicides against dicamba resistant fathen (Chenopodium album) Results confirmed the presence of the biotype which tolerated dicamba up to 2400 g/ha eight times the recommended field rate Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes Flumetsulam provided good control in one of the three trials Nicosulfuron and mesotrione provided long term residual control in all tria

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Shufran, Kevin A., David C. Margolies, and William C. Black. "Variation between biotype E clones of Schizaphis graminum (Homoptera: Aphididae)." Bulletin of Entomological Research 82, no. 3 (1992): 407–16. http://dx.doi.org/10.1017/s0007485300041201.

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AbstractPhenotypic and genotypic variation was investigated between biotype E clones of the greenbug, Schizaphis graminum (Rondani). S. graminum was collected from wheat and sorghum fields in seven Kansas counties, USA. Colonies representing single maternal lineages (clones) were initiated and maintained in an insectary, and were verified as biotype E. An allozyme survey among clones did not detect any polymorphism at 24 enzymatic loci. We were unable to detect interclonal variation for nymphal survivorship, age at first reproduction, fecundity, and reproductive lifespan. Variation among genet

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De Barro, P. J., and M. T. Coombs. "Post-release evaluation of Eretmocerus hayati Zolnerowich and Rose in Australia." Bulletin of Entomological Research 99, no. 2 (2008): 193–206. http://dx.doi.org/10.1017/s0007485308006445.

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AbstractBemisia tabaci biotype B is a significant pest of agriculture world-wide. It was first detected in Australia in 1994. Assessments of the potential of parasitoids already present in Australia to control this pest indicated that two species of Eretmocerus and 11 species of Encarsia were present, but they did not exert sufficient control with a combined average of 5.0±0.3% apparent parasitism of 4th instars. Further, only 25% of samples containing biotype B had parasitised individuals present. The surveys also identified that fewer B biotype were being parasitised compared with the Austra

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Ruan, Yong-Ming, Jing Xu, and Shu-Sheng Liu. "Effects of antibiotics on fitness of the B biotype and a non-B biotype of the whitefly Bemisia tabaci." Entomologia Experimentalis et Applicata 121, no. 2 (2006): 159–66. http://dx.doi.org/10.1111/j.1570-8703.2006.00466.x.

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