期刊
MOLECULAR PHYLOGENETICS AND EVOLUTION
卷 152, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2020.106927
关键词
Snake; Colubridae; Sinonatrix; Phylogeny; Biogeography; Asia
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) [XDA 20050201]
- Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK05010105]
- National Natural Science Foundation of China [NSFC 31372152]
- Southeast Asia Biodiversity Research Institute, CAS [Y4ZK111B01: 2017CASSEABRIQG002]
- Animal Branch of the Germplasm Bank of Wild Species, CAS
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, CAS [GREKF 19-02]
- Sciences and Technology Department of Sichuan Province [2020YFSY0033]
- National Foundation for Science and Technology Development (NAFOSTED) [106.05-2017.329]
The Asian water snake genus Trimerodytes (formerly Sinonatrix) is endemic to East and Southeast Asia. Although several species have been included in various phylogenetic studies previously, the evolution and relationships among members of this genus as a whole remain unexplored. In this study, we report the sequencing two protein coding mitochondrial gene fragments (MTCYB and ND2) and three nuclear genes (c-mos, NT3, and Rag1), reconstruct interspecific phylogeny, and explore biogeography for the genus Trimerodytes. Both Bayesian inference and maximum likelihood analyses consistently recover the monophyly of Trimerodytes with strong support, with T. yapingi the sister-group to the remaining species. The divergence date and ancestral area estimation suggest that Trimerodytes likely originated in Hengduan Mountains (eastern Tibetan Plateau) in western China at 23.93 Ma (95% HPD: 17.09-31.30), and intraspecific divergence began at about 4.23 Ma (95% HPD: 2.74-6.10). Analyses support the validity of T. yunnanensis.
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