Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Genomic Signature of Shifts in Selection and Alkaline Adaptation in Highland Fish | |
Tong, Chao; Li, Miao; Tang, Yongtao; Zhao, Kai | |
2021 | |
发表期刊 | GENOME BIOLOGY AND EVOLUTION |
卷号 | 13期号:5 |
摘要 | Understanding how organisms adapt to aquatic life at high altitude is fundamental in evolutionary biology. This objective has been addressed primarily related to hypoxia adaptation by recent comparative studies, whereas highland fish has also long suffered extreme alkaline environment, insight into the genomic basis of alkaline adaptation has rarely been provided. Here, we compared the genomes or transcriptomes of 15 fish species, including two alkaline tolerant highland fish species and their six alkaline intolerant relatives, three alkaline tolerant lowland fish species, and four alkaline intolerant species. We found putatively consistent patterns of molecular evolution in alkaline tolerant species in a large number of shared orthologs within highland and lowland fish taxa. Remarkably, we identified consistent signatures of accelerated evolution and positive selection in a set of shared genes associated with ion transport, apoptosis, immune response, and energy metabolisms in alkaline tolerant species within both highland and lowland fish taxa. This is one of the first comparative studies that began to elucidate the consistent genomic signature of alkaline adaptation shared by highland and lowland fish. This finding also highlights the adaptive molecular evolution changes that support fish adapting to extreme environments at high altitude. |
关键词 | comparative genomics molecular evolution alkaline adaptation schizothoracine fish |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/60811 |
专题 | 中国科学院西北高原生物研究所 |
推荐引用方式 GB/T 7714 | Tong, Chao,Li, Miao,Tang, Yongtao,et al. Genomic Signature of Shifts in Selection and Alkaline Adaptation in Highland Fish[J]. GENOME BIOLOGY AND EVOLUTION,2021,13(5). |
APA | Tong, Chao,Li, Miao,Tang, Yongtao,&Zhao, Kai.(2021).Genomic Signature of Shifts in Selection and Alkaline Adaptation in Highland Fish.GENOME BIOLOGY AND EVOLUTION,13(5). |
MLA | Tong, Chao,et al."Genomic Signature of Shifts in Selection and Alkaline Adaptation in Highland Fish".GENOME BIOLOGY AND EVOLUTION 13.5(2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论