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Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake

文献类型：期刊论文

作者Chen, Juan5,6; Yang, Liandong6; Zhang, Renyi4; Uebbing, Severin3; Zhang, Cunfang4; Jiang, Haifeng5,6; Lei, Yi5,6; Lv, Wenqi5,6; Tian, Fei4; Zhao, Kai4
刊名GENOME BIOLOGY AND EVOLUTION
出版日期2020
卷号12期号:1页码:3725-3737
关键词sympatric speciation transcriptomics gene expression population genetics
ISSN号1759-6653
DOI10.1093/gbe/evz276
英文摘要Sympatric speciation remains a central focus of evolutionary biology. Although some evidence shows speciation occurring in this way, little is known about the gene expression evolution and the characteristics of population genetics as species diverge. Two closely related Gymnocypris fish (Gymnocypris chui and Gymnocypris scieracanthus), which come from a small glacier lake in the Tibetan Plateau, Lake Langcuo, exist a possible incipient sympatric adaptive ecological speciation. We generated large amounts of RNA-Seq data from multiple individuals and tissues from each of the two species and compared gene expression patterns and genetic polymorphisms between them. Ordination analysis separated samples by organ rather than by species. The degree of expression difference between organs within and between species was different. Phylogenetic analyses indicated that the two closely related taxa formed a monophyletic complex. Population structure analysis displayed two distinctly divergent clusters of G. chui and G. scleracanthus populations. By contrast, G. scleracanthus population genetic diversity is higher than that of G. chui. Considerable sites of the two populations were differentiated with a coefficient of F-ST = 0.25-0.50, implying that a small proportion of loci nevertheless exhibited deep divergence in two comparisons. Concomitantly, putatively selected genes during speciation revealed functional categories are enriched in bone morphogenesis, cell growth, neurogenetics, enzyme activity, and binding activity in G. chui population. In contrast, nutrition and localization were highlighted in G. scleracanthus. Collectively, morphological traits and dietary preference combine with genetic variation and expression variation, probably contributed to the incipient speciation of two sympatric populations.
WOS关键词EVOLUTION CANYON ; PHYLOGENETIC ANALYSIS ; MOLECULAR PHYLOGENY ; SPINY MICE ; SPECIATION ; CYPRINIDAE ; DIVERGENCE ; ADAPTATIONS ; TELEOSTEI ; SELECTION
资助项目National Natural Science Foundation of China[91731301] ; Wuhan Branch, Supercomputing Center, Chinese Academy of Sciences, China
WOS研究方向Evolutionary Biology ; Genetics & Heredity
语种英语
WOS记录号WOS:000522860800016
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of China ; Wuhan Branch, Supercomputing Center, Chinese Academy of Sciences, China
源URL[http://ir.idsse.ac.cn/handle/183446/7536]  
专题深海科学研究部_深海生物学研究室_深海鱼类物种与基因组多样性的研究
通讯作者Tian, Fei; Zhao, Kai; He, Shunping
作者单位1.Chinese Acad Sci, Ctr Excellence Anim Evolut & Genet, Kunming, Yunnan, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
3.Yale Univ, Sch Med, Dept Genet, New Haven, CT 06510 USA
4.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Juan,Yang, Liandong,Zhang, Renyi,et al. Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake[J]. GENOME BIOLOGY AND EVOLUTION,2020,12(1):3725-3737.
APA Chen, Juan.,Yang, Liandong.,Zhang, Renyi.,Uebbing, Severin.,Zhang, Cunfang.,...&He, Shunping.(2020).Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake.GENOME BIOLOGY AND EVOLUTION,12(1),3725-3737.
MLA Chen, Juan,et al."Transcriptome-Wide Patterns of the Genetic and Expression Variations in Two Sympatric Schizothoracine Fishes in a Tibetan Plateau Glacier Lake".GENOME BIOLOGY AND EVOLUTION 12.1(2020):3725-3737.

入库方式： OAI收割

来源：深海科学与工程研究所

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