中国德氏瘰螈形态、分子系统分析和生境描述  

Morphology,Molecular Phylogenetics,and Habitat of Paramesotriton deloustali(Bourret,1934)in Yunnan,China

作　　者：魏平凡 刘小龙 温汉华 张贵良 王剑 袁智勇[1] WEI Ping-Fan;LIU Xiao-Long;WEN Han-Hua;ZHANG Gui-Liang;WANG Jian;YUAN Zhi-Yong(Key Laboratory for Conserving Wildlife with Small Populations in Yunnan,Southwest Forestry University,Kunming 650224;Dongguan Yinpingshan Forestry Park,Dongguan 523000;Forestry and Grassland Administration of Yao Autonomous County of Hekou,Hekou 661300;College of Life Science and Technology,Honghe University,Mengzi 661199,China)

机构地区：[1]西南林业大学,云南省高校极小种群野生动物保育重点实验室,昆明650224 [2]东莞市银瓶山森林公园,东莞523000 [3]河口瑶族自治县林业和草原局,河口661300 [4]红河学院生命科学与技术学院,蒙自661199

出　　处：《动物学杂志》2021年第4期617-623,共7页Chinese Journal of Zoology

基　　金：云南省基础研究计划(专项)优秀青年项目(No.202001AW070016);云南省中青年学术和技术带头人后备人才项目(No.202005AC160046);中国科协青年人才托举工程项目(No.2019-2021QNRC001);生态环境部生物多样性调查、观测和评估项目(No.2019-2023年);第二次青藏高原综合科学考察研究项目(No.2019QZKK0501)。

摘　　要：中越边境地区是全球生物多样性的热点地区,近年来不断有新种、分布新记录种报道。2017年,学者首次报道了德氏瘰螈(Paramesotriton deloustali Bourret,1934)在中国的分布,但仅描述了其线粒体全序列,缺乏其他生物学信息。本研究于2013年在云南省红河州哈尼族彝族自治州河口县境内大围山保护区(22°37′N,103°52′E,海拔350 m)采集到6号标本应为德氏瘰螈,包括雄性成体标本4号和雌性成体标本2号,对其形态和生境特征进行了详细描述。此次采集标本与模式标本系列形态吻合。基于细胞色素c氧化酶亚基I(COI)基因的系统发育分析结果显示,河口大围山德氏瘰螈种群与模式产地(越南北部永福省三岛“Tam Dao,Vinh Phuc Province”风景区)种群间的遗传分化较小(p-distance为0.6%),与2017年所报道的云南标本聚为一支(p-distance为0.5%)。德氏瘰螈目前仅记录于中越边境地区,分布地极为狭窄,种群数量未知。为了更好地了解和保护包括该物种在内的中越边境生物多样性,建议两国学者进行更多的合作研究。The China-Vietnam border region is a well-known biodiversity hotspot,harboring a striking diversity of species and endemism.New species and new records have been reported on both sides of the border in recent years.Although Paramesotriton deloustali was first recorded in China in 2017,only the complete mitochondrial sequence was provided,and no other information was available,including its detailed distribution in China and morphological characteristics.Here we describe P.deloustali from China based on six newly collected specimens(four males and two females)from Dawishan Reserve(22°37′N,103°52′E,altitude 350 m)in Hekou County,Honghe Hani and Yi Autonomous Prefecture,Yunnan Province(Table 1).The morphological characters of the Chinese specimens align closely with the type series from Vietnam(Fig.1,2),and the phylogenetic analyses based on the cytochrome coxidase subunit I(COI)gene revealed a low genetic differentiation(p-distance is 0.6%)between Chinese population and those from its type locality at Tam Dao,Vinh Phuc Province,northern Vietnam.Additionally,our newly collected specimens have low genetic divergence(p-distance is 0.5%)from the sequences of the former record in Yunnan(Fig.3).P.deloustali is currently recorded in the China-Vietnam border area only,and it is found in a narrow area with unknown population size and trends.We recommend further international collaboration between China and Vietnam to understand the distribution and conservation situation of this species better.

关 键 词：中越边境 瘰螈属 云南省 两栖动物 大围山 

分 类 号：Q958[生物学—动物学]