High-quality genome assembly and resequencing of modern cotton cultivars provide resources for crop improvement

Autor: Zhiying Ma, Liting Chen, Zhanwu Yang, Guiyin Zhang, Qishen Gu, Jing Cui, Lizhu Wu, Zhengwen Liu, Aijun Si, Limei Ma, Rongkang Shi, Yang Li, Yanru Cui, Shilin Tian, Ke Huifeng, Yan Zhang, Xingfen Wang, Wu Jinhua, Bin Chen, Nan Wang, Zhengwen Sun, Zhicheng Wang, Dongmei Zhang, Yuanyuan Yan, Man Zhang, Shaojing Mo, Wang Guoning, Zhikun Li, Nan Wu, Jun Yang, Liqiang Wu, Yafei Jiang, Xiuxin Li, Xing Lv, Lihua Li, Yihong Duan, Chengsheng Meng
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Nature Genetics
ISSN: 1546-1718
1061-4036
Popis: Cotton produces natural fiber for the textile industry. The genetic effects of genomic structural variations underlying agronomic traits remain unclear. Here, we generate two high-quality genomes of Gossypium hirsutum cv. NDM8 and Gossypium barbadense acc. Pima90, and identify large-scale structural variations in the two species and 1,081 G. hirsutum accessions. The density of structural variations is higher in the D-subgenome than in the A-subgenome, indicating that the D-subgenome undergoes stronger selection during species formation and variety development. Many structural variations in genes and/or regulatory regions potentially influencing agronomic traits were discovered. Of 446 significantly associated structural variations, those for fiber quality and Verticillium wilt resistance are located mainly in the D-subgenome and those for yield mainly in the A-subgenome. Our research provides insight into the role of structural variations in genotype-to-phenotype relationships and their potential utility in crop improvement.
High-quality genomes of two cultivated tetraploid cottons Gossypium hirsutum cv. NDM8 and Gossypium barbadense acc. Pima90 and resequencing of 1,081 G. hirsutum accessions provide insights into the role of structural variations.
Databáze: OpenAIRE
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