首页|西藏自治区三种小型兽类新纪录

西藏自治区三种小型兽类新纪录

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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.
Three new records of small mammals in Xizang Autonomous Region,China
A series of specimens of small mammals were collected in Nyingchi and Shigatse regions from Himalayas,Xi-zang,China during the second comprehensive scientific expedition to the Qinghai-Xizang Plateau and the biological re-sources 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 can-sulus in Xizang are similar to the Yunnan population in morphological characteristics,and maximum likehood phyloge-netic 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 morphologi-cal 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.

Sorex cansulusAlexandromys limnophilusLeopoldamys neilliXizang Autonomous RegionNew records

朱中旭、李权、陈中正、李学友、裴枭鑫、王洪娇、普昌哲、罗康、罗京、普明进、蒋学龙

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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

中国科学院大学昆明生命科学学院,昆明 650201

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

甘肃鼩鼱 柴达木根田鼠 耐氏大鼠 西藏自治区 新纪录

第二次青藏高原综合科学考察研究西藏重点区域野生动植物资源调查

SQ2024QZKK0602ZL202303601

2024

兽类学报
中国科学院西北高原生物研究所,中国动物学会兽类学分会

兽类学报

CSTPCD北大核心
影响因子:0.804
ISSN:1000-1050
年,卷(期):2024.44(5)
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