Phenotypic and genomic adaptations to the extremely high elevation in plateau zokor (Myospalax baileyi)

NWIPB OpenIR

	Phenotypic and genomic adaptations to the extremely high elevation in plateau zokor (Myospalax baileyi)
	Zhang, Tao; Chen, Jie; Zhang, Jia; Guo, Yuan-Ting; Zhou, Xin; Li, Meng-Wen; Zheng, Zhi-Zhong; Zhang, Tong-Zuo; Murphy, Robert W.; Nevo, Eviatar; Shi, Peng
	2021
发表期刊	MOLECULAR ECOLOGY
摘要	The evolutionary outcomes of high elevation adaptation have been extensively described. However, whether widely distributed high elevation endemic animals adopt uniform mechanisms during adaptation to different elevational environments remains unknown, especially with respect to extreme high elevation environments. To explore this, we analysed the phenotypic and genomic data of seven populations of plateau zokor (Myospalax baileyi) along elevations ranging from 2,700 to 4,300 m. Based on whole-genome sequencing data and demographic reconstruction of the evolutionary history, we show that two populations of plateau zokor living at elevations exceeding 3,700 m diverged from other populations nearly 10,000 years ago. Further, phenotypic comparisons reveal stress-dependent adaptation, as two populations living at elevations exceeding 3,700 m have elevated ratios of heart mass to body mass relative to other populations, and the highest population (4,300 m) displays alterations in erythrocytes. Correspondingly, genomic analysis of selective sweeps indicates that positive selection might contribute to the observed phenotypic alterations in these two extremely high elevation populations, with the adaptive cardiovascular phenotypes of both populations possibly evolving under the functional constrains of their common ancestral population. Taken together, phenotypic and genomic evidence demonstrates that heterogeneous stressors impact adaptations to extreme elevations and reveals stress-dependent and genetically constrained adaptation to hypoxia, collectively providing new insights into the high elevation adaptation.
关键词	heterogeneous stresses high elevation adaptation phenotype and genotype plateau zokor
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60709
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	Zhang, Tao,Chen, Jie,Zhang, Jia,et al. Phenotypic and genomic adaptations to the extremely high elevation in plateau zokor (Myospalax baileyi)[J]. MOLECULAR ECOLOGY,2021.
APA	Zhang, Tao.,Chen, Jie.,Zhang, Jia.,Guo, Yuan-Ting.,Zhou, Xin.,...&Shi, Peng.(2021).Phenotypic and genomic adaptations to the extremely high elevation in plateau zokor (Myospalax baileyi).MOLECULAR ECOLOGY.
MLA	Zhang, Tao,et al."Phenotypic and genomic adaptations to the extremely high elevation in plateau zokor (Myospalax baileyi)".MOLECULAR ECOLOGY (2021).