Evolutionary divergence of duplicated genomes in newly described allotetraploid cottons

文献类型： 外文期刊

第一作者： Peng, Renhai

作者： Peng, Renhai;Unver, Turgay;Liu, Zhen;Wei, Yangyang;Liu, Yuling;Li, Pengtao;Wang, Tao;Lu, Quanwei;Xu, Yanchao;Zhou, Zhongli;Cai, Xiaoyan;Wang, Kunbo;Wang, Heng;Hu, Guanjing;Hou, Yuqing;Wang, Yuhong;Liu, Fang;Tian, Shilin;Zhang, Zhongren;Unver, Turgay;Hu, Guanjing;Grover, Corrinne E.;Conover, Justin L.;Wendel, Jonathan F.;Ghazal, Hassan;Wang, Yuanyuan;Wang, Qinglian;Zhang, Baohong;Van Montagu, Marc;Van de Peer, Yves;Van Montagu, Marc;Van de Peer, Yves;Van de Peer, Yves;Van de Peer, Yves

作者机构：

关键词： tetraploid cotton; polyploid dynamics; structure variations; adaptive evolution

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.1； 五年影响因子：12.0 ）

ISSN： 0027-8424

年卷期： 2022 年 119 卷 39 期

页码：

收录情况： SCI

摘要： Allotetraploid cotton (Gossypium) species represents a model system for the study of plant polyploidy, molecular evolution, and domestication. Here, chromosome-scale genome sequences were obtained and assembled for two recently described wild species of tetraploid cotton, Gossypium ekmanianum [(AD)(6), Ge] and Gossypium stephensii [(AD)(7), Gs], and one early form of domesticated Gossypium hirsutum, race punctatum [(AD)(1), Ghp]. Based on phylogenomic analysis, we provide a dated whole-genome level perspective for the evolution of the tetraploid Gossypium clade and resolved the evolutionary relationships of Gs, Ge, and domesticated G. hirsutum. We describe genomic structural variation that arose during Gossypium evolution and describe its correlates-including phenotypic differentiation, genetic isolation, and genetic convergenc-ethat contributed to cotton biodiversity and cotton domestication. Presence/absence variation is prominent in causing cotton genomic structural variations. A presence/ absence variation-derived gene encoding a phosphopeptide-binding protein is implicated in increasing fiber length during cotton domestication. The relatively unimproved Ghp offers the potential for gene discovery related to adaptation to environmental challenges. Expanded gene families enoyl-CoA delta isomerase 3 and RAP2-7 may have contributed to abiotic stress tolerance, possibly by targeting plant hormone-associated biochemical pathways. Our results generate a genomic context for a better understanding of cotton evolution and for agriculture.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序