Comparative multi-locus assessment of modern Asian newts(Cynops, Paramesotriton, and Pachytriton:Salamandridae) in southern China suggests a shared biogeographic history  

作　　者：Zhi-Yong Yuan Yun-Ke Wu Fang Yan Robert W.Murphy Theodore J.Papenfuss David B.Wake Ya-Ping Zhang Jing Che 

机构地区：[1]State Key Laboratory of Genetic Resources and Evolution&Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming,Yunnan 650223,China [2]Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education),School of Life Sciences,Southwest University,Chongqing 400715,China [3]Department of Ecology and Evolutionary Biology,Cornell University,Ithaca 14850,USA [4]College of Life Science,Yunnan University,Kunming,Yunnan 650091,China [5]Centre for Biodiversity and Conservation Biology,Royal Ontario Museum,Toronto,Ontario M5S 2C6,Canada [6]Museum of Vertebrate Zoology,University of California,Berkeley,CA 94720,USA

出　　处：《Zoological Research》2022年第5期706-718,共13页动物学研究（英文）

基　　金：supported by the Strategic Priority Research Program,CAS (XDB31040202,XDA19050303);China’s Biodiversity Observation Network (Sino-BON),Digitalization,Development and Application of Biotic Resource (202002AA100007);Animal Branch of the Germplasm Bank of Wild Species,Chinese Academy of Sciences (Large Research Infrastructure Funding);National Natural Science Foundation of China (32170478);Yunnan FundamentalResearchProject(202001AW070016,202005AC160046);Young Talent Project of China Association for Science and Technology (2019-2021QNRC001);Second Tibetan Plateau Scientific Expedition and Research Program(2019QZKK0501);supported by the CAS President’s International Fellowship Initiative (PIFI) to R.W.M.

摘　　要：Evolutionary biologists are always interested in deciphering the geographic context of diversification,therefore they introduced the concept of comparative phylogeography, which helps to identify common mechanisms that contribute to shared genetic structures among organisms from the same region.Here, we used multi-locus genetic data along with environmental data to investigate shared phylogeographic patterns among three Asianendemic newt genera, Cynops, Paramesotriton and Pachytriton, which occurred in montane/submontane streams or ponds in southern China. Our 222samples from 78 localities covered the entire range of the three genera and represented the largest dataset of this group to date. We reconstructed matrilineal genealogies from two protein-coding,mitochondrial genes, and gene network from two nuclear genes. We also estimated divergence times of major cladogenetic events and used occurrence data to evaluate niche difference and similarity between lineages. Our results revealed a common basal split in all three genera that corresponds to the separation of two geographic terrains of southern China.Those ancient divergence occurred during middle to late Miocene and likely correlate with paleoclimatic fluctuations caused by the uplift of the Qinghai-Xizang (Tibet) Plateau (QTP).Particularly,the strengthening and weakening of Asian summer monsoons during the Miocene may have profoundly impacted southern China and led to repeatedly vicariance in those newts.However,despite differences in realized niches between lineages,there is no evidence for divergence of fundamental niches.Preservation of old newt matriline lineages in mountains of southern China suggests that the region acts as both museums and cradles of speciation.Based on those results,we advocate a multi-pronged protection strategy for newts in the three genera.

关 键 词：AMPHIBIAN Comparative phylogeography Qinghai-Xizang(Tibet)Plateau East Asian monsoons Ecological niche modeling Species museums and cradles 

分 类 号：Q958[生物学—动物学]