| 金彪,廖春林,张娅妮,王斌,江建平.2018.湖南桑植天平山发现宜章臭蛙及该物种的遗传分化分析.动物学杂志,53(6):849-856. |
| 湖南桑植天平山发现宜章臭蛙及该物种的遗传分化分析 |
| Discovery of Odorrana yizhangensis in Tianping Mountains, Hunan Province of China with Intraspecific Genetic Divergence of the Species |
| 投稿时间：2018-05-16 修订日期：2018-11-09 |
| DOI：10.13859/j.cjz.201806003 |
| 中文关键词: 宜章臭蛙 湖南天平山 分子系统学 遗传分化 |
| 英文关键词:Odorrana yizhangensis Tianping Mountain of Hunan Province Molecular systematics Genetic divergence |
| 基金项目:国家自然科学基金项目（No. 31471964，31201702）和中国科学院生物多样性监测研究网络项目（Sino-BON） |
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| 中文摘要: |
| 2012年和2013年在湖南省桑植县天平山采集到6号臭蛙类标本，经形态比较和分子系统学分析，鉴定为宜章臭蛙（Odorrana yizhangensis），表明天平山为该物种的新分布点。这些标本与宜章臭蛙的主要鉴别特征相符：体型较小；体背面棕色斑大而密，形状不规则；腹面褐色，其上斑纹稀少；股后部色浅，深色斑明显。雄性头体长（52.45 ± 2.54）mm（48.96 ~ 54.92 mm，n = 3），雌性头体长（73.11 ± 1.43）mm（71.26 ~ 74.74 mm，n = 3），均比模式标本群体的头体长略大。基于线粒体16S rRNA基因片段（502 bp）的系统关系分析结果表明，分析的天平山臭蛙标本与宜章臭蛙已知种群聚为一支系，天平山种群与宜章臭蛙已知种群间的遗传距离为0.002 0 ~ 0.008 1，远小于宜章臭蛙与其近缘种龙胜臭蛙（O. lungshengensis）之间的遗传距离（0.035 2 ~ 0.043 9）；这表明采自天平山的臭蛙样本属于宜章臭蛙。本文为宜章臭蛙物种的地理分布与系统学提供了新的信息。 |
| 英文摘要: |
| In 2012 and 2013, we collected six specimens of odorous frogs from Tianping Mountains located in Hunan Badagongshan National Nature Reserve. Results of morphological comparisons and molecular phylogenetic analyses showed that these specimens belong to the species Odorrana yizhangensis. These specimens presented almost same diagnosis of O. yizhangensis: body size smaller, Snout-vent length (SVL) of male 52.45 ± 2.54 mm (48.96﹣54.92 mm, n = 3), of female 73.11 ± 1.43 mm (71.26﹣74.74 mm, n = 3) (Table 2), which little bigger than those of types; irregular brown spots are big and crowded on dorsum of body; belly brown, with few stripes; hind side of thigh light in color with dark spots (Fig. 1a, b). Based on 16S rRNA gene data (502 bp), the phylogenetical analyses suggested that the specimens from Tianping Mountains were clustered together with other known populations into a monophyly corresponding to the species O. yizhangensis (Fig. 2a, b), the genetic distances between Mt. Tianping and other known populations of O. yizhangensis (0.002 0﹣0.008 1) were distinctly smaller than that between O. yizhangensis and O. lungshengensis (0.035 2﹣0.043 9) (Table 3); indicating that the odor frog specimens from Mt. Tianping should belong to the species O. yizhangensis. This work provided new information to the geographical distribution and systematics about the species. |
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