广西发现荔波臭蛙

Odorrana liboensis Found in Guangxi

荔波臭蛙(Odorrana liboensis)已知仅分布于贵州省荔波县茂兰国家级自然保护区。2021年8月,在广西壮族自治区百色市那坡县弄尧(23°01′21″N,105°50′58″E)采集到2号臭蛙标本(1雌,1雄)。经鉴定为荔波臭蛙,属广西两栖纲新记录物种。2号标本在形态上与荔波臭蛙模式标本基本一致,仅体型大小和腹部体色稍有差异。基于线粒体16S rRNA基因部分序列构建的系统发育树表明,荔波臭蛙那坡种群与模式标本聚为一支,支持率为100%,遗传距离为1.5%。本研究表明,荔波臭蛙广西那坡种群与模式产地种群存在一定的遗传和形态分化,可为蛙类生物地理学研究提供基础数据。

Odorrana liboensis is only known from its type locality,Maolan National Nature Reserve,Libo County,Guizhou Province,China.In August 2021,two specimens(1 male,1 female)of the genus Odorrana were collected from Nongyao,Napo County,Baise City,Guangxi Zhuang Autonomous Region,China(23°01′21″N,105°50′58″E).The specimens were identified as O.liboensis,representing a newly recorded species of Amphibian in Guangxi.Morphologically the two specimens are basically consistent with type specimens of O.liboensis,with slight differences in body size and abdominal color.The phylogenetic tree constructed based on sequences of mitochondrial 16S rRNA gene showed that the two specimens were clustered together with O.liboensis from the type locality with a support value of 100% and a genetic distance of 1.5%.This study shows that there are genetic and morphological differentiations between the two specimens and the type specimens of O.liboensis,which provides basic data for the research of frog biogeography.