The high-altitude hypoxic environment represents one of the most extreme challenges for mammals. Previous studies of humans on the Tibetan plateau and in the Andes Mountains have identified statistical signatures of selection in different sets of loci. Here, we first measured the hemoglobin levels in village dogs from Tibet and those from Chinese lowlands. We found that the hemoglobin levels are very similar between the two groups, suggesting that Tibetan dogs might share similar adaptive strategies as the Tibetan people. Through a whole-genome sequencing approach, we have identified EPAS1 and HBB as candidate genes for the hypoxic adaptation on the Tibetan plateau. The population genetic analysis shows a significant convergence between humans and dogs in Tibet. The similarities in the sets of loci that exhibit putative signatures of selection and the hemoglobin levels between humans and dogs of the same environment, but not between human populations in different regions, suggests an extraordinary landscape of convergent evolution between human beings and their best friend on the Tibetan plateau.
Genetic Convergence in the Adaptation of Dogs and Humans to the High-Altitude Environment of the Tibetan Plateau
Guo-Dong Wang,Ruo-xi Fan,W. Zhai,Fei Liu,Lu Wang,Li Zhong,Hong Wu,He-Chuan Yang,Shi‐Fang Wu,Chun-Ling Zhu,Yan Li,Yun Gao,R. Ge,Chung-I Wu,Ya-ping Zhang
Published 2014 in Genome Biology and Evolution
ABSTRACT
PUBLICATION RECORD
- Publication year
2014
- Venue
Genome Biology and Evolution
- Publication date
2014-08-01
- Fields of study
Biology, Medicine, Environmental Science
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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