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Gossypium mustelinum genome and an introgression population enrich interspecific genetics and breeding in cotton

文献类型： 外文期刊

作者： Yang, Yang 1 ; You, Chunyuan 1 ; Wang, Nian 1 ; Wu, Mi 1 ; Le, Yu 1 ; Wang, Maojun 1 ; Zhang, Xianlong 1 ; Yu, Yu 4 ; Lin, Zhongxu 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Nucl & Biotechnol, Xinjiang Key Lab Crop Biotechnol, State Key Lab Genet Improvement & Germplasm Innova, Urumqi 830091, Xinjiang, Peoples R China

3.Shihezi Acad Agr Sci, Cotton Res Inst, Shihezi 832000, Xinjiang, Peoples R China

4.Xinjiang Acad Agr & Reclamat Sci, Cotton Res Inst, Shihezi 832000, Xinjiang, Peoples R China

期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.4； 五年影响因子：5.7 ）

ISSN： 0040-5752

年卷期： 2023 年 136 卷 6 期

页码：

收录情况： SCI

摘要： Key messageGenomic and genetic resources of G. mustelinum were effective for identifying genes for qualitative and quantitative traits.Gossypium mustelinum represents the earliest diverging evolutionary lineage of polyploid Gossypium, representing a rich gene pool for numerous desirable traits lost in cotton cultivars. Accurate information of the genomic features and the genetic architecture of objective traits are essential for the discovery and utilization of G. mustelinum genes. Here, we presented a chromosome-level genome assembly of G. mustelinum and developed an introgression population of the G. mustelinum in the background of G. hirsutum that contained 264 lines. We precisely delimited the boundaries of the 1,662 introgression segments with the help of G. mustelinum genome assembly, and 87% of crossover regions (COs) were less than 5 Kb. Genes for fuzzless and green fuzz were discovered, and a total of 14 stable QTLs were identified with 12 novel QTLs across four independent environments. A new fiber length QTL, qUHML/SFC-A11, was confined to a 177-Kb region, and GmOPB4 and GmGUAT11 were considered as the putative candidate genes as potential negative regulator for fiber length. We presented a genomic and genetic resource of G. mustelinum, which we demonstrated that it was efficient for identifying genes for qualitative and quantitative traits. Our study built a valuable foundation for cotton genetics and breeding.

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