西藏自治区三种小型兽类新纪录  

Three new records of small mammals in Xizang Autonomous Region,China

作　　者：朱中旭 李权[1] 陈中正 李学友[1] 裴枭鑫 王洪娇 普昌哲 罗康 罗京 普明进 蒋学龙[1] ZHU Zhongxu;LI Quan;CHEN Zhongzheng;LI Xueyou;PEI Xiaoxin;WANG Hongjiao;PUChangzhe;LUO Kang;LUO Jing;PU Mingjin;JIANG Xuelong(Key Laboratory of Genetic Evolution and Animal Models&Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong Mountain,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming 650223,China;Kunming College of Life Science,University of Chinese Academy of Sciences,Kunming 650201,China;Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education,School of Ecology and Environment,Anhui Normal University,Wuhu 241002,China)

机构地区：[1]中国科学院昆明动物研究所遗传进化与动物模型全国重点实验室与云南省高黎贡山生物多样性重点实验室,昆明650223 [2]中国科学院大学昆明生命科学学院,昆明650201 [3]皖江流域退化生态系统的恢复与重建省部共建协同创新中心,安徽师范大学生态与环境学院,芜湖241002

出　　处：《兽类学报》2024年第5期563-573,共11页Acta Theriologica Sinica

基　　金：第二次青藏高原综合科学考察研究(SQ2024QZKK0602);西藏重点区域野生动植物资源调查(ZL202303601)。

摘　　要：2020—2023年,在第二次青藏高原综合科学考察与西藏重点地区野生动物资源调查期间,于西藏自治区东南部及南部喜马拉雅地区的林芝和日喀则采集到一批小型兽类标本。通过形态学和遗传学研究发现其中包含甘肃鼩鼱(Sorex cansulus)、柴达木根田鼠(Alexandromys limnophilus)和耐氏大鼠(Leopoldamys neilli),皆为西藏自治区兽类新纪录。其中甘肃鼩鼱西藏种群与云南白马雪山种群形态大小相近,最大似然树(ML)显示二者构成单系(BS=100),组内遗传距离为0.5%~0.6%;柴达木根田鼠西藏种群与四川种群形态大小相近,二者构成单系(BS=100),组内遗传距离为1.0%~1.4%;耐氏大鼠西藏种群与泰国种群和云南种群部分形态特征相异,三者构成单系(BS=81),组内遗传距离为5.7%~6.3%。本研究扩展了这三个物种的分布区并丰富了西藏自治区哺乳动物的多样性。A series of specimens of small mammals were collected in Nyingchi and Shigatse regions from Himalayas,Xizang,China during the second comprehensive scientific expedition to the Qinghai-Xizang Plateau and the biological resources survey in key areas of Xizang by researchers from Kunming Institute of Zoology,Chinese Academy of Sciences.The specimens were subsequently identified as Sorex cansulus,Alexandromys limnophilus and Leopoldamys neilli by morphological and genetic analyses,which represented as new mammal records in Xizang.The population of Sorex cansulus in Xizang are similar to the Yunnan population in morphological characteristics,and maximum likehood phylogenetic analyses support the two populations are monophyletic(BS=100)and the K2P genetic distance of Cyt b gene is 0.5%−0.6%.The Xizang population of Alexandromys limnophilus are similar to the Sichuan population in morphological characteristics,and the two populations are monophyletic(BS=100)and the K2P genetic distance is 1.0%−1.4%.While Leopoldamys neilli in Xizang is somewhat different from the Yunnan and Thailand population,Molecular analyses supported the three populations are monophyletic(BS=81)and the K2P genetic distance is 5.7%−6.3%.This study extend the distribution range of those species.

关 键 词：甘肃鼩鼱 柴达木根田鼠 耐氏大鼠 西藏自治区 新纪录 

分 类 号：Q958.3[生物学—动物学]