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Fang YAN, Ke JIANG, Kai WANG, Jie-Qiong JIN, Chatmongkon SUWANNAPOOM, Cheng LI, . 2016: The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade. 动物学研究, 37(1): 7-14. DOI: 10.13918/j.issn.2095-8137.2016.1.7
引用本文: Fang YAN, Ke JIANG, Kai WANG, Jie-Qiong JIN, Chatmongkon SUWANNAPOOM, Cheng LI, . 2016: The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade. 动物学研究, 37(1): 7-14. DOI: 10.13918/j.issn.2095-8137.2016.1.7
Fang YAN, Ke JIANG, Kai WANG, Jie-Qiong JIN, Chatmongkon SUWANNAPOOM, Cheng LI, Jens V. VINDUM, Rafe M. BROWN, Jing CHE. 2016: The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade. Zoological Research, 37(1): 7-14. DOI: 10.13918/j.issn.2095-8137.2016.1.7
Citation: Fang YAN, Ke JIANG, Kai WANG, Jie-Qiong JIN, Chatmongkon SUWANNAPOOM, Cheng LI, Jens V. VINDUM, Rafe M. BROWN, Jing CHE. 2016: The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade. Zoological Research, 37(1): 7-14. DOI: 10.13918/j.issn.2095-8137.2016.1.7

The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade

The Australasian frog family Ceratobatrachidae in China, Myanmar and Thailand: discovery of a new Himalayan forest frog clade

  • 摘要: 为了研究叉舌蛙科小跳蛙属(或泽蛙属)内一些物种的分类地位,我们收集了四个分布于喜马拉雅地区的物种(西藏舌突蛙 Limnonectes xizangensis,墨脱舌突蛙 L. medogensis,高山舌突蛙 L. alpine,北蟾舌蛙 Ingerana borealis),和一个东南亚物种(他沙小跳蛙I. tasanae),并结合已有数据进行了分子系统学研究。结果显示西藏舌突蛙,墨脱舌突蛙和高山舌突蛙为一单系,与澳大利亚丛林蛙类角蛙科(Ceratobatrachidae)为姐妹群关系,并构成了一个高支持率的单系。这一发现解决了三个舌突蛙物种分类的长期争议。这也扩大了角蛙科物种的分布范围,是该科在中国的新纪录。同时,在形态上,我们也发现这三个物种与小跳蛙属和泽蛙属的物种具有显著差异:(1)趾间无蹼;(2)指、趾末端均无吸盘;(3)指、趾末端无沟;(4)无跗褶。基于分子水平和形态水平的差异,这三个物种应属于角蛙科舌突蛙属(Liurana Dubis 1987)。另外,分布于缅甸和泰国的他沙小跳蛙I. tasanae与角蛙科的Alcalus属聚为一支。这也是角蛙科在缅甸和泰国的新纪录。最后,北蟾舌蛙与小跳蛙属的模式物种丹那小跳蛙 I. tenasserimensis 聚为一支,说明北蟾舌蛙应属于叉舌蛙科小跳蛙属。

     

    Abstract: In an effort to study the systematic affinities and specieslevel phylogenetic relationships of the enigmatic anurans variably assigned to the genera Ingerana or Limnonectes (family Dicroglossidae), we collected new molecular sequence data for five species including four Himalayan taxa, Limnonectes xizangensis, Lim. medogensis, Lim. alpine, Ingerana borealis and one southeast Asian species, I. tasanae, and analyzed these together with data from previous studies involving other ostensibly related taxa. Our surprising results demonstrate unequivocally that Lim. xizangensis, Lim. medogensis and Lim. alpine form a strongly supported clade, the sister-group of the family Australasian forest frog family Ceratobatrachidae. This discovery requires an expansion of the definition of Ceratobatrachidae and represents the first record of this family in China. These three species are distinguished from the species of Ingerana and Limnonectes by the: (1) absence of interdigital webbing of the foot, (2) absence of terminal discs on fingers and toes, (3) absence of circumarginal grooves on the fingers and toes, and (4) absence of tarsal folds. Given their phylogenetic and morphological distinctiveness, we assign them to the oldest available generic name for this clade, Liurana Dubois 1987, and transfer Liurana from Dicroglossidae to the family Ceratobatrachidae. In contrast, Ingerana tasanae was found to be clustered with strong support with the recently described genus Alcalus (Ceratobatrachidae), a small clade of otherwise Sundaic species; this constitutes a new record of the family Ceratobatrachidae for Myanmar and Thailand. Finally, Ingerana borealis clustered with the "true" Ingerana (family Dicroglossidae), for which the type species is I. tenasserimensis.

     

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