重庆两种兽类新纪录——滇北缺齿鼩和斯氏缺齿鼩  

Chodsigoa parva and Chodsigoa smithii,two new records of mammals in Chongqing

作　　者：韩吉学 胡为阳 汤若晖 黄静艺 袁恒瑞 王霞 普昌哲 罗康 罗京 李权[3] 何锴 陈中正 HAN Jixue;HU Weiyang;TANG Ruohui;HUANG Jingyi;YUAN Hengrui;WANG Xia;PU Changzhe;LUO Kang;LUO Jing;LI Quan;HE Kai;CHEN Zhongzheng(School of Ecology and Environment,Anhui Normal University,Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education,Wuhu 241002,China;Jinfoshan National Nature Reserve Administration Center,Chongqing 408499,China;Key Laboratory of Genetic Evolution&Animal Models,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming 650223,China;Key Laboratory of Conservation and Application in Biodiversity of South China,School of Life Sciences,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]安徽师范大学生态与环境学院,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,安徽芜湖241002 [2]重庆市金佛山国家级自然保护区管理事务中心,重庆408499 [3]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,昆明650201 [4]广州大学生命科学学院,华南生物多样性保护与利用重点实验室,广州510006

出　　处：《四川林业科技》2024年第5期126-131,共6页Journal of Sichuan Forestry Science and Technology

基　　金：国家自然科学基金项目(Nos.31900318,32170452);安徽高校协同创新项目(GXXT-2020-075);安徽师范大学大学生创新创业训练计划项目。

摘　　要：2021年6月和2023年7月于重庆市金佛山采集到5号缺齿鼩属动物标本,其中2号标本体型较小,头体长55~58 mm,尾长小于头体长,脑颅扁平,与滇北缺齿鼩(Chodsigoa parva)的特征相符;基于线粒体Cyt b基因构建的系统发育树显示其与云南丽江的滇北缺齿鼩聚在一起,两地标本的遗传差异为5.24%。其余3号标本的体型较大,尾长大于头体长,尾尖裸露,颌骨前端突然收窄,脑颅隆起,与斯氏缺齿鼩(Chodsigoa smithii)的特征相符;基于Cytb基因构建的最大似然树显示其与斯氏缺齿鼩聚为一支,与四川的斯氏缺齿鼩的遗传差异为1.37%。滇北缺齿鼩和斯氏缺齿鼩均为重庆市哺乳动物新纪录,这两个物种在重庆金佛山与霍氏缺齿鼩同域共存。In June 2021 and July 2023,five specimens of Chodsigoa were collected from Jinfo Mountain,Chongqing.Two of them were smaller in size,with a head length of 55-58 mm,a tail length less than the head length and a flat cranium,which were consistent with the characteristics of Chodsigoa parva.The maximum likelihood(ML)tree constructed using mitochondrial Cytb gene sequences showed that the two specimens form a monophyletic clade with C.parva from Lijiang,Yunnan,with a pairwise genetic difference of 5.24%.The other three specimens were larger in size,with the tail longer than the head length,the tail end lacking tufted hair,the premaxilla was sharply narrowed,and the cranial bulge was obvious,which were congruous with Chodsigoa smithii.These three specimens clustered with C.smithii in the ML tree,and the genetic distance between them was 1.37%.Both C.parva and C.smithii were new records of mammals in Chongqing,and they were sympatric with C.hoffmanni in Jinfo Mountain.

关 键 词：重庆 新纪录 滇北缺齿鼩 斯氏缺齿鼩 

分 类 号：Q958[生物学—动物学]