广西柳州发现桑植蛙
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1 珍稀濒危动植物生态与环境保护教育部重点实验室,广西珍稀濒危动物生态重点实验室,广西师范大学生命科学学院桂林 541006;2 广西壮族自治区环境保护科学研究院 南宁 530022

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陈慧玲,女,硕士研究生;研究方向:蛇类分类和谱系地理;E-mail: 2141140186@qq.com。

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国家自然科学基金项目(No. 32200379),广西自然科学基金项目(No. 2023GXNSFBA026309),广西陆域生物多样性保护优先区域调查与评估项目(2023—2024);


Rana sangzhiensis Found in Liuzhou, Guangxi, China
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1 Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education; Guangxi Key Laboratory of Rare and Endangered Animal Ecology (Guangxi Normal University); College of Life Sciences, Guangxi Normal University, Guilin 541006; 2 Guangxi Research Academy of Environmental Sciences, Nanning 530022, China

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    摘要:

    2024年8月27日和10月15日,在广西壮族自治区柳州市融水苗族自治县分别采集到无尾目(Anura)蛙科(Ranidae)蛙属(Rana)标本1号,共2号。经形态鉴定对比,2号标本均和桑植蛙(R. sangzhiensis)相似;基于16S rRNA基因序列构建蛙属部分物种系统发育树,采集的2号标本与桑植蛙聚为一支,遗传距离为0.2%,小于同属其他物种间的遗传距离(0.8% ~ 8.4%)且与外群间的遗传距离为11.6%。结合形态特征和分子系统发育分析,确定在柳州采集到的2号标本为桑植蛙,系广西壮族自治区两栖动物分布新记录种,扩展了越南趾沟蛙种组(R. johnsi group)的已知分布范围

    Abstract:

    Rana sangzhiensis was initially described by Shen Yuhui in 1986 from Hunan, China. On August 27, 2024, a female subadult specimen (GXNU090506) was collected from Rongshui Miao Autonomous County, Liuzhou, Guangxi. Subsequently, on October 15, 2024, a male adult specimen (GXNU102338) was collected from the same location. Morphological comparison revealed similarities to R. sangzhiensis (Figs. 1, 2). In addition, the 16S ribosomal RNA (16S rRNA) gene sequences were analyzed, with sequencing peak maps evaluated and manually corrected. Additionally, 60 sequences from 18 Rana species were retrieved from GenBank for comparison (Table S1). Phylogenetic analyses were conducted using Bayesian inference (BI) and Maximum likelihood (ML) methods via PhyloSuite. Species boundaries were delineated via the Bayesian Poisson Tree Processes (bPTP). The phylogenetic analysis based on the 16S rRNA gene indicated that the collected specimens clustered with R. sangzhiensis specimens (Figs. 3, 4), exhibiting uncorrected pairwise distances (p-distance) of 0.2% (Table 2). This p-distance was notably lower than the interspecific p-distances observed within the genus Rana (0.8%﹣8.4%) and significantly lower than the p-distance to the outgroup (11.6%). Integrating morphological characteristics with molecular phylogenetic evidence, we conclude that the two specimens collected from Guangxi belong to R. sangzhiensis. This finding represents a new record for amphibian distribution in Guangxi and extends the known distribution range of the R. johnsi group.

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陈慧玲,邹同祥,杨瑞刚,武正军,陈泽柠. 2025.广西柳州发现桑植蛙. 动物学杂志, 60(6): 919-926.

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  • 收稿日期:2025-01-06
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  • 在线发布日期: 2025-12-20
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