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Genetic Diversity, Population Structure, and Genome-Wide Association Study of Seven Agronomic Traits in 273 Diverse Upload Cotton Accessions

Yajun Liang1,2,#, Juyun Zheng1,#, Junduo Wang1,#, Zhaolong Gong1, Zhiqiang Li3, Ling Min4, Zeliang Zhang2, Zhiwei Sang2, Yanying Qu2, Xueyuan Li1,*, Quanjia Chen2,*

1 Cash Crops Research Institute of Xinjiang Academy of Agricultural Science (XAAS), Urumqi, China
2 Engineering Research Centre of Cotton of Ministry of Education, Xinjiang Agricultural University, Urumqi, China
3 R&D Department, Adsen Biotechnology Corporation, Urumqi, China
4 National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China

* Corresponding Authors: Xueyuan Li. Email: email; Quanjia Chen. Email: email
# These authors contributed equally to this work

Phyton-International Journal of Experimental Botany 2023, 92(12), 3345-3357. https://doi.org/10.32604/phyton.2023.028755

Abstract

Upland cotton (Gossypium hirsutum) is the most important plant producing natural fibers for the textile industry. In this study, we first investigated the phenotypic variation of seven agronomic traits of 273 diverse cotton accessions in the years 2017 and 2018, which were from 18 geographical regions. We found large variations among the traits in different geographical regions and only half of the traits in either years 2017 or 2018 followed a normal distribution. We then genotyped the collection with 81,612 high quality SNPs. Phylogenetic tree and population structure revealed a diverse genetic structure of the core collection, and geographical diversification was an important factor, but account for part of the variances of genetic diversification. We then performed genome-wide association study for the seven traits in the years 2017 and 2018, and the average values of each trait in the two years, respectively. We identified a total of 19 significant marker-trait associations and found that Pollen Ole e 1 allergen/extension could be the candidate gene associated with the fall-off cotton bolls from the last three branches. In addition, large variations were observed for the heritability of traits in the years 2017 and 2018. These results provide new potential candidate genes for further functional validation, which could be useful for genetic improvement and breeding of new cotton cultivars with better agronomic performances.

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APA Style
Liang, Y., Zheng, J., Wang, J., Gong, Z., Li, Z. et al. (2023). Genetic diversity, population structure, and genome-wide association study of seven agronomic traits in 273 diverse upload cotton accessions. Phyton-International Journal of Experimental Botany, 92(12), 3345-3357. https://doi.org/10.32604/phyton.2023.028755
Vancouver Style
Liang Y, Zheng J, Wang J, Gong Z, Li Z, Min L, et al. Genetic diversity, population structure, and genome-wide association study of seven agronomic traits in 273 diverse upload cotton accessions. Phyton-Int J Exp Bot. 2023;92(12):3345-3357 https://doi.org/10.32604/phyton.2023.028755
IEEE Style
Y. Liang et al., "Genetic Diversity, Population Structure, and Genome-Wide Association Study of Seven Agronomic Traits in 273 Diverse Upload Cotton Accessions," Phyton-Int. J. Exp. Bot., vol. 92, no. 12, pp. 3345-3357. 2023. https://doi.org/10.32604/phyton.2023.028755



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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