Comparative phylogeography of two sister species of snowcock: impacts of species-specific altitude preference and life history

作     者：Bei An Lixun Zhang Yutao Wang Sen Song Bei An;Lixun Zhang;Yutao Wang;Sen Song

作者机构：School of Basic Medicine SciencesLanzhou UniversityLanzhou 730000China School of Life SciencesLanzhou UniversityLanzhou 730000China Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental PollutionLanzhou UniversityLanzhou 730000China College of Life and Geographic SciencesKashi UniversityKashi 844000China The Key Laboratory of Ecology and Biological Resources in Yarkand Oasis at Colleges&Universities under the Department of Education of Xinjiang Uygur Autonomous RegionKashi UniversityKashi 844000China 

出 版 物：《Avian Research》 (鸟类学研究（英文版）)

年 卷 期：2020年第11卷第1期

页      面：45-56页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：the Strategic Priority Research Program of Chinese Academy of Sciences(XDA2010010103) National Natural Science Foundation of China(NSFC,Grant No.31372195 and 31772436) the Open Foundation of Research Institute of Qilian Mountains,Lanzhou University 

主　　题：Himalayan Snowcock Phylogeographical pattern Phylogeographical signal Population dynamics Tetraogallus himalayensis Tetraogallus tibetanus Tibetan Snowcock 

摘      要：Background: Phylogeographical patterns and population dynamics are usually interpreted by environmental disturbances and geographic barriers of the past. However, sister species may exhibit disparate patterns of genetic structures and population dynamics due to their habitat preference and altitude segregation. In this study, we tested how species-specific altitude habitat affected phylogeographical patterns in two sister snowcock species, Tibetan(Tetraogallus tibetanus) and Himalayan Snowcocks(T. himalayensis).Methods: A panel of seven microsatellite loci and a fragment of Mitochondrial DNA Control Region were used to investigate genetic structures and population dynamics in hope of revealing the underlying evolutionary processes through the identification of possible past demographic ***: Our results suggest that T. himalayensis showed a significant phylogeographical signal in mtDNA(FST microsatellite(F the glacial-interglacial cycles in the = 0.66, p 0.001) and ST Pleistocene and followed demog= 0.11, p 0.001) data and is stable duringraphic contraction until 0.003 million years(Mys) ago. The phylogeographical signal of T. tibetanus is lower than the level of genetic difference among populations in mtDNA(FST icrosatellite(F= 0.41, p 0.001) and mST s been experien= 0.09, p 0.001) data, likely benefiting from stable habitats over a long period of time. T. tibetanus hacing expansion since 0.09 Mys ago. However, an abnormally haplotype H9 from T. himalayensis clustering with T. tibetanus was ***: Our results indicate that differences in habitat preference and altitude specialities were reflected in the genetic structure patterns and population dynamics of these two species. These dissimilarities in life history traits might have affected the dispersal and survival abilities of these two species differently during environmental fluctuations. The results of this study also enriched our knowledge on population differentiation and connec