文献类型： 外文期刊

作者： Qian, Yuting ¹ ; Meng, Minghui ⁵ ; Zhou, Chaowei ⁶ ; Liu, Haiping ⁸ ; Jiang, Haifeng ⁹ ; Xu, Youwei ¹⁰ ; Chen, Wenjun ¹ ; Ding, Zufa ¹ ; Liu, Yang ¹ ; Gong, Xiong ¹ ; Wang, Cheng ¹ ; Lei, Yi ¹ ; Wang, Tai ¹¹ ; Wang, Ying ³ ; Gan, Xiaoni ¹ ; Meyer, Axel ¹³ ; He, Shunping ¹ ; Yang, Liandong ¹ ;

作者机构： 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China

2.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining, Peoples R China

3.Qinghai Normal Univ, Acad Plateau Sci & Sustainabil, Xining, Peoples R China

4.Univ Chinese Acad Sci, Beijing, Peoples R China

5.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Hort Plant Biol MOE, Wuhan, Peoples R China

6.Southwest Univ, Coll Fisheries, Chongqing, Peoples R China

7.Minist Educ, Key Lab Freshwater Fish Reprod & Dev, Key Lab Aquat Sci Chongqing, Chongqing, Peoples R China

8.Southwest Univ, Integrat Sci Ctr Germplasm Creat Western China CHO, Key Lab Aquat Sci Chongqing, Key Lab Freshwater Fish Reprod & Dev,Minist Educ,S, Chongqing, Peoples R China

9.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling, Shaanxi, Peoples R China

10.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou, Peoples R China

11.Gansu Fisheries Res Inst, Gansu Key Lab Cold Water Fishes Germplasm Resource, Lanzhou, Peoples R China

12.Jianghan Univ, Hubei Engn Res Ctr Protect & Utilizat Special Biol, Sch Life Sci, Wuhan, Peoples R China

13.Univ Konstanz, Dept Biol, Constance, Germany

14.Chinese Acad Sci, Ctr Excellence Anim Evolut & Genet, Kunming, Peoples R China

关键词： phylogenetic conflict; introgression; reticulation; recombination; Triplophysa

期刊名称：MOLECULAR BIOLOGY AND EVOLUTION （ 影响因子：10.7； 五年影响因子：15.1 ）

ISSN： 0737-4038

年卷期： 2023 年 40 卷 6 期

页码：

收录情况： SCI

摘要： Recent genomic analyses of evolutionary radiations suggest that ancient introgression may facilitate rapid diversification and adaptive radiation. The loach genus Triplophysa, a genus with most species endemic to Tibetan Plateau, shows ecological diversity and rapid evolution and represents a potential example of adaptive radiation linked to the uplift of the Tibetan Plateau. Here, we interrogate the complex evolutionary history of Triplophysa fishes through the analysis of whole-genome sequences. By reconstructing the phylogeny of Triplophysa, quantifying introgression across this clade, and simulating speciation and migration processes, we confirm that extensive gene flow events occurred across disparate Triplophysa species. Our results suggest that introgression plays a more substantial role than incomplete lineage sorting in underpinning phylogenetic discordance in Triplophysa. The results also indicate that genomic regions affected by ancient gene flow exhibit characteristics of lower recombination rates and nucleotide diversity and may associate with selection. Simulation analysis of Triplophysa tibetana suggests that the species may have been affected by the Gonghe Movement in the third uplift of the Tibetan Plateau, resulting in founder effects and a subsequent reduction in Ne.