Relevant bibliographies by topics / Octoploid

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Octoploid'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Octoploid"

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Gogoi, S., Meghali Borua, and R. Rajan. "Induced auto-octoploidy in Som, Persea Bombycina (King Ex Hook. F.) Kosterm." Indian Journal of Forestry 33, no. 3 (2010): 319–22. http://dx.doi.org/10.54207/bsmps1000-2010-e2emgy.

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Presently auto-octoploidy has been induced in an induced auto-tetraploid som, Persea bombycina (2n=24), the principal food plant of muga silkworm (Antheraea assamensis Helfer), through colchicine treatment (0.5%). Auto-octoploids showed deterioration in almost all the morphological features in contrast to tetraploid which seem to be the optimum ploidy level. Auto–octoploid is highly susceptible to stem diseases and dwarf in growth nature.
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Bors, Robert H., and J. Alan Sullivan. "Introgression of Fragaria Species using a Streamlined Synthetic Octoploid System." HortScience 32, no. 3 (1997): 548D—548. http://dx.doi.org/10.21273/hortsci.32.3.548d.

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Fragaria species from the center of diversity have not been integrated into octoploid commercial strawberry cultivars because of ploidy level differences. Even though traits such as disease resistance, enhanced flavor, cold hardiness, and vigor are known to exist in the diploid, tetraploid, and hexaploid species, they cannot be easily used for breeding. The synthetic octoploid method circumvented introgression difficulties by combining lower ploidy species and doubling to the octoploid level. Although easily crossed to cultivars, the use of synthetic octoploids has been minimal as it has been
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Eng, Wee Hiang, Wei Seng Ho, and Kwong Hung Ling. "In vitro induction and identification of polyploid Neolamarckia cadamba plants by colchicine treatment." PeerJ 9 (October 27, 2021): e12399. http://dx.doi.org/10.7717/peerj.12399.

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Polyploidization has played a crucial role in plant breeding and crop improvement. However, studies on the polyploidization of tropical tree species are still very scarce in this region. This paper described the in vitro induction and identification of polyploid plants of Neolamarckia cadamba by colchicine treatment. N. cadamba belongs to the Rubiaceae family is a natural tetraploid plant with 44 chromosomes (2n = 4x = 44). Nodal segments were treated with colchicine (0.1%, 0.3% and 0.5%) for 24 h and 48 h before transferring to shoot regeneration medium. Flow cytometry (FCM) and chromosome co
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Liu, Bo, Elizabeth G. Poulsen, and Thomas M. Davis. "Insight into octoploid strawberry (Fragaria) subgenome composition revealed by GISH analysis of pentaploid hybrids." Genome 59, no. 2 (2016): 79–86. http://dx.doi.org/10.1139/gen-2015-0116.

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As the product of interspecific hybridization between its two ancestral octoploid (2n = 8x = 56) species (Fragaria chiloensis and F. virginiana), the cultivated strawberry (F. ×ananassa) is among the most genomically complex of crop plants, harboring subgenomic components derived from as many as four different diploid ancestors. To physically visualize the octoploids’ subgenome composition(s), we launched molecular cytogenetic studies using genomic in situ hybridization (GISH), comparative GISH (cGISH), and rDNA-FISH techniques. First, GISH resolution in Fragaria was tested by using diploid an
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Kucharska, Danuta, Małgorzata Podwyszyńska, Aleksandra Trzewik, Agnieszka Marasek-Ciołakowska, Stanisław Pluta, and Łukasz Seliga. "In Vitro Induction and Primary Evaluation of Octoploid Plants in Saskatoon Berry (Amelanchier alnifolia Nutt.)." Agronomy 12, no. 5 (2022): 1215. http://dx.doi.org/10.3390/agronomy12051215.

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Polyploids of many species of horticultural plants are widely used in breeding programs since they are characterized by vigorous growth, larger organs, and greater resistance to biotic and abiotic stress. Saskatoon berry (Amelanchier alnifolia Nutt.) is in a form of diploid (2n = 2x = 34) and tetraploid. So far, no reports on induction of polyploidy in this species have been found. The aim of the study was to obtain Saskatoon berry octoploids with the use of in vitro shoot cultures. Shoots of the tetraploid of Canadian cultivars ‘Martin’ and ‘Smoky’ derived from in vitro cultures were used for
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Banks, P. M., S. J. Xu, R. R. C. Wang, and P. J. Larkin. "Varying chromosome composition of 56-chromosome wheat × Thinopyrum intermedium partial amphiploids." Genome 36, no. 2 (1993): 207–15. http://dx.doi.org/10.1139/g93-029.

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Thinopyrum intermedium (2n = 42) is a source of many potentially useful genes for wheat improvement. Many partial amphiploids have been produced between Th. intermedium and Triticum aestivum that are fertile and stable. These partial amphiploids all have 56 chromosomes, including seven pairs of chromosomes from Th. intermedium. To explore the genomic composition of these lines, meiotic analysis was conducted on 32 hybrid combinations between eight different partial amphiploids. All but two of the chosen parents were distinguishable on the basis of perenniality, head morphology, and reactions t
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Mandáková, Terezie, Judita Zozomová-Lihová, Hiroshi Kudoh, Yunpeng Zhao, Martin A. Lysak, and Karol Marhold. "The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives." Annals of Botany 124, no. 2 (2019): 209–20. http://dx.doi.org/10.1093/aob/mcz019.

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Abstract Background and Aims Cardamine occulta (Brassicaceae) is an octoploid weedy species (2n = 8x = 64) originated in Eastern Asia. It has been introduced to other continents including Europe and considered to be an invasive species. Despite its wide distribution, the polyploid origin of C. occulta remained unexplored. The feasibility of comparative chromosome painting (CCP) in crucifers allowed us to elucidate the origin and genome evolution in Cardamine species. We aimed to investigate the genome structure of C. occulta in comparison with its tetraploid (2n = 4x = 32, C. kokaiensis and C.
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Armstrong, K. C. "Chromosome pairing in octoploid F1 and octoploid amphiploid hybrids between Bromus inermis and B. pumpellianus." Canadian Journal of Genetics and Cytology 27, no. 5 (1985): 538–41. http://dx.doi.org/10.1139/g85-079.

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Chromosome pairing in the amphiploid (8x) of 4x Bromus pumpellianus ssp. dicksonii × 4x B. inermis was compared with pairing in the F1 hybrids between natural octoploid cytotypes of B. inermis and B. pumpellianus and the octoploid parents. Predominantly bivalent pairing was found in both the amphioctoploid, octoploid F1 hybrids, and octoploid parents. Bivalent formation in the amphioctoploid could be based on chromosome differentiation between the tetraploid cytotypes of B. inermis and B. pumpellianus. These results suggest that the evolution of the octoploid cytotypes of B. inermis and B. pum
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Barbey, Christopher R., Seonghee Lee, Sujeet Verma, et al. "Disease Resistance Genetics and Genomics in Octoploid Strawberry." G3: Genes|Genomes|Genetics 9, no. 10 (2019): 3315–32. http://dx.doi.org/10.1534/g3.119.400597.

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Octoploid strawberry (Fragaria ×ananassa) is a valuable specialty crop, but profitable production and availability are threatened by many pathogens. Efforts to identify and introgress useful disease resistance genes (R-genes) in breeding programs are complicated by strawberry’s complex octoploid genome. Recently-developed resources in strawberry, including a complete octoploid reference genome and high-resolution octoploid genotyping, enable new analyses in strawberry disease resistance genetics. This study characterizes the complete R-gene collection in the genomes of commercial octoploid str
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Mao, Haotian, Mengying Chen, Yanqiu Su, et al. "Comparison on Photosynthesis and Antioxidant Defense Systems in Wheat with Different Ploidy Levels and Octoploid Triticale." International Journal of Molecular Sciences 19, no. 10 (2018): 3006. http://dx.doi.org/10.3390/ijms19103006.

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To investigate the evolutionary differences of wheat with different ploidy levels and octoploid Triticale, photosynthetic capacity, and antioxidant defenses system were compared within and between diploid, tetraploid and hexaploid wheat, and octoploid Triticale seedlings. The results showed that seed germination rate, chlorophyll content, and photochemical activity of photosystems, and the activities of antioxidative enzymes in hexaploid wheat and octoploid Triticale were significantly higher than in diploid and tetraploid wheat. Compared to other two wheat species and octoploid Triticale, hex
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Dissertations / Theses on the topic "Octoploid"

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Alarfaj, Rashed Abdulrahman. "Characterization of a new octoploid strawberry breeding population." Thesis, University of Reading, 2017. http://centaur.reading.ac.uk/75514/.

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Among the Fragaria species, the cultivated strawberry Fragaria × ananassa (2n=8x=56) is the most economically valuable crops. After harvest, they are extremely perishable, have a short shelf life, and are susceptible to mechanical injuries and physiological decay due to loss of tissue integrity, sensitivity to fungal diseases, and have a large surface area, which lacks an outer protective rind. Therefore, maintaining high nutritional values in the berry fruit whilst maintaining high fruit quality requires an understanding of the genetic and environmental effects on each trait, and how differen
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Furlong, Rebecca Felicity. "Were vertebrates octoploid? : a molecular phylogenic analysis of chordate evolution." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272243.

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Bors, Robert Harold. "A streamlined synthetic octoploid system that emphasizes Fragaria vesca as a bridge species." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/NQ55616.pdf.

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Fogelström, Elsa. "Herbivores, pollinators and selection on flowering time in tetraploid and octoploid Cardamine pratensis." Thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-88100.

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Repeated polyploidization events are thought to be among the most important causes of sympatric speciation throughout evolutionary time. Changes in phenology and trait expressions that arise in polyploids have been shown to affect plant interactions with insect herbivores and pollinators. If these interactions are changed, selection subsequent to the polyploidization event could contribute to further divergence, or increased similarity, of cytotypes. This study was conducted to investigate plant interactions with insect herbivores and pollinators and patterns of selection in tetraploid and oct
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Antanaviciute, Laima. "Genetic mapping and phenotyping plant characteristics, fruit quality and disease resistance traits in octoploid strawberry (Fragaria × ananassa)." Thesis, University of Reading, 2016. http://centaur.reading.ac.uk/66695/.

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The cultivated strawberry (Fragaria × ananassa Duch.) is the third most economically important fruit crop. In recent years the withdrawal of many fungicides and soil fumigants have made the sustainability and profitability of this crop more challenging. To overcome these challenges, plant breeders aim to improve upon existing cultivars and to release new ones with higher yield, better fruit quality and more disease resistance. Through Quantitative Trait Mapping, markers linked to genetic variants associated with traits of economic and agronomic importance can be identified through and molecula
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Katsiotis, Andreas. "The determination and use of pollen grain size in four ploidy levels and the cytogenetics of tetraploid - octoploid hybrids in search of 2n gametes in Avena." 1993. http://catalog.hathitrust.org/api/volumes/oclc/30336117.html.

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Torrico, Ramallo Ada Karina. "Caracterización genética de aislamientos de Strawberry mild yellow edge virus (SMYEV) e impacto de la enfermedad en el cultivo de frutilla (Fragaria x ananassa Duch.) en Argentina." Doctoral thesis, 2019. http://hdl.handle.net/11086/12825.

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: Tesis (Grado Doctor en Ciencias Biológicas)--Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Lugar de Trabajo: Instituto de Patología Vegetal-IPAVE- Centro de Investigaciones Agropecuarias-CIAP–Instituto Nacional de Tecnología Agropecuaria-INTA-CONICET- Universidad Nacional de Córdoba. 2015 - 122 h. con Anexos + CD. tabls.; figuras. Contiene Referencia Bibliográfica. Abstract en español e inglés.<br>El Strawberry mild yellow edge virus (SMYEV, género Potexvirus, familia Alphaflexiviridae), es uno de los principales virus que afectan al cultivo de frutil
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Book chapters on the topic "Octoploid"

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Vickerstaff, Robert. "Genotyping Tools for the Octoploid Strawberry." In Compendium of Plant Genomes. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76020-9_9.

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Verma, Sujeet, Luis F. Osorio, Seonghee Lee, Nahla V. Bassil, and Vance M. Whitaker. "Genome-Assisted Breeding in the Octoploid Strawberry." In Compendium of Plant Genomes. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76020-9_12.

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Isobe, Sachiko N., Kenta Shirasawa, Soichiro Nagano, and Hideki Hirakawa. "Current Status of Octoploid Strawberry (Fragaria × ananassa) Genome Study." In Compendium of Plant Genomes. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76020-9_10.

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Pott, Delphine M., José G. Vallarino, Sonia Osorio, and Iraida Amaya. "Fruit Ripening and QTL for Fruit Quality in the Octoploid Strawberry." In Compendium of Plant Genomes. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76020-9_8.

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Bizimungu, Benoit, J. Collin, C. A. St. Pierre, and A. Comeau. "Evaluation of New Winter Octoploid Triticales for their Reaction to Single and Combined Infections with BYDV and Typhula Ishikariensis." In Triticale: Today and Tomorrow. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0329-6_68.

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"octoploid, adj. & n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/7958025643.

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"12. Origins Of Polyploid Crops: The Example Of The Octoploid Tuber Crop Oxalis Tuberosa." In Documenting Domestication. University of California Press, 2019. http://dx.doi.org/10.1525/9780520932425-015.

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Gupta, Sandhya. "In Vitro Propagation and Conservation of Fragaria Species." In Strawberries [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103095.

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The genus Fragaria L. belongs to the family Rosaceae. The basic chromosome number is 7 (x = 7). Around 20 species of diploid, tetraploid, hexaploid and octoploid are found in the genus. The species of Fragaria are commonly known as strawberries. The genus is found in the temperate regions of the northern hemisphere as well as South America. The most extensively distributed species in the genus is F. vesca L. and the commonly cultivated strawberry is F. x ananassa Duch. While strawberries are native to temperate climates, some varieties can be grown in subtropical climates. Fragaria is a vegeta
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"octoploidy, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/8735342705.

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Hammouda, Dounia, Nadra Khalfallah, and Houda Badri Mohammed. "A Genomic Study in Octoploide Triticale (8x) and their Genitors (Wheat and Rye) by C-banding, N-Banding and In Situ Hybridization: The Translocation Identification 2BL/7RS." In Recent Research Advances in Biology Vol. 10. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/rrab/v10/10916d.

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Conference papers on the topic "Octoploid"

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"Molecular, сytogenetic, and morphological features of primary octoploid triticale". У Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-055.

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"Chromosome constitution and activity of the centromeric histone H3 (CENH3) variants in octoploid triticale lines." In Current Challenges in Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences Novosibirsk State University, 2019. http://dx.doi.org/10.18699/icg-plantgen2019-79.

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"Rye inbred line L371 as a genetic source for primary octoploid triticale resistance to wheat leaf rust." In Биоинформатика регуляции и структуры геномов / системная биология. ИЦиГ СО РАН, 2024. http://dx.doi.org/10.18699/bgrs2024-06-52.

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Reports on the topic "Octoploid"

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Kurkiev, K. U., U. K. Kurkiev, S. K. Temirbekova, and M. H. Gadjimagomedova. FIELD RESISTANCE ACCESSIONS OCTOPLOIDS TRITICALE TO YELLOW RUST. All-Russian Research Institute of Phytopathology, 2016. http://dx.doi.org/10.15217/daggau-668455.

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