您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Recent and Recurrent Autopolyploidization Fueled Diversification of Snow Carp on the Tibetan Plateau

文献类型： 外文期刊

作者： Li, Xinxin 1 ; Wang, Min 1 ; Zou, Ming 1 ; Guan, Xiaotong 1 ; Xu, Shaohua 1 ; Chen, Weitao 3 ; Wang, Chongnv 1 ; Chen, Yiyu 4 ; He, Shunping 2 ; Guo, Baocheng 1 ;

作者机构： 1.Chinese Acad Sci, Inst Zool, Inst Zool, Beijing 100101, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Beijing 100101, Peoples R China

4.Chinese Acad Sci, Inst Hydrobiol, Inst Zool, Beijing 100101, Peoples R China

5.Chinese Acad Sci, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China

关键词： whole-genome duplication; speciation; ohnolog; gene tree; isoform sequencing

期刊名称：MOLECULAR BIOLOGY AND EVOLUTION （ 影响因子：5.3； 五年影响因子：11.9 ）

ISSN： 0737-4038

年卷期： 2024 年 41 卷 11 期

页码：

收录情况： SCI

摘要： Whole-genome duplication (WGD), or polyploidization, is a major contributor to biodiversity. However, the establishment and survival of WGDs are often considered to be stochastic, since elucidating the processes of WGD establishment remains challenging. In the current study, we explored the processes leading to polyploidy establishment in snow carp (Cyprinidae: Schizothoracinae), a predominant component of the ichthyofauna of the Tibetan Plateau and its surrounding areas. Using large-scale genomic data from isoform sequencing, we analyzed ohnolog genealogies and divergence in hundreds to thousands of gene families across major snow carp lineages. Our findings demonstrated that independent autopolyploidization subsequent to speciation was prevalent, while autopolyploidization followed by speciation also occurred in the diversification of snow carp. This was further supported by matrilineal divergence and drainage evolution evidence. Contrary to the long-standing hypothesis that ancient polyploidization preceded the diversification of snow carp, we determined that polyploidy in extant snow carp was established by recurrent autopolyploidization events during the Pleistocene. These findings indicate that the diversification of extant snow carp resembles a coordinated duet: first, the uplift of the Tibetan Plateau orchestrated the biogeography and diversification of their diploid progenitors; then, the extensive Pliocene-Pleistocene climate changes acted as relay runners, further fueling diversification through recurrent autopolyploidization. Overall, this study not only reveals a hitherto unrecognized recent WGD lineage in vertebrates but also advances current understanding of WGD processes, emphasizing that WGD establishment is a nonstochastic event, emerging from numerous adaptations to environmental challenges and recurring throughout evolutionary history rather than merely in plants.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台