Genetic and morphological variation analyses of Glandirana rugosa with description of a new species (Anura, Ranidae)
Genetic and morphological variation analyses of Glandirana rugosa with description of a new species (Anura, Ranidae)
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Glandirana rugosa 的遗传和形态变异分析以及新物种（无尾蛇、蛙科）的描述
DOI：
10.11646/zootaxa.5174.1.2
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发表时间：
2022
期刊：
影响因子：
0.9
通讯作者：
and K. Eto
中科院分区：
文献类型：
--
作者：
Shimada;T.;M. Matsui;M. Ogata;I. Miura;M. Tange;M.-S. Min;and K. Eto
已知 Glandirana rugosa 包括几个性染色体不同的地理类群，并且已被证明在线粒体系统发育中与 G. susurra 是并系群。通过分析大量格兰迪拉纳个体的遗传和形态变异，我们研究了它们的分类关系。以天台棉球为外类群的线粒体DNA系统发育揭示了两个主要谱系，分别为：（1）东台棉球（G. rugosa）、大苏拉（G. susurra），以及中部和九州东南部的棉球（G. rugosa）； (2) G. emeljanovi，以及 G. rugosa 的北群和西群。相反，在基于SNP数据的核DNA系统发育中，（1）G. susurra和East组的谱系，以及（2）G. rugosa和G. emeljanovi的其余组的谱系被分裂，表明G. rugosa中East组的不同地位。在成虫形态上，东组与其余组的G. rugosa仅有微小差异，但在幼虫中，东组的皮肤腺明显比其他组稀疏。 G. rugosa 的确切模式产地很可能是在日本西部，不包括东群的分布范围。根据这些结果，我们将东部群体描述为一个新物种，即 G. reliquia，与 G. rugosa 的其余群体不同。这种具有性同态染色体的新物种被认为代表了日本 Glandirana 的基本种群，它早在 G. rugosa 起源之前就已存在。
Glandirana rugosa is known to include several geographic groups differing in sex chromosomes, and has been proven to be paraphyletic in mitochondrial phylogeny with respect to G. susurra. By analyzing genetic and morphological variation in a large number of individuals of Glandirana, we studied their taxonomic relationships. A mitochondrial DNA phylogeny, with the G. tientaiensis as outgroup, revealed two major lineages containing respectively (1) the East group of G. rugosa, G. susurra, and the Central and Southeast-Kyushu groups of G. rugosa; and (2) G. emeljanovi, and the North and West groups of G. rugosa. In contrast, in a nuclear DNA phylogeny based on SNP data, lineages of (1) G. susurra and East group, and (2) the remaining groups of G. rugosa and G. emeljanovi, were split, indicating a distinct status of the East group among G. rugosa. In adult morphology, there were only minor differences between the East group and the remaining groups of G. rugosa, but in larvae, the East group had significantly more sparse skin glands than the others. The exact type locality of G. rugosa is most probably in western Japan, not including the range of the East group. From these results, we describe the East group as a new species, G. reliquia, distinct from the remaining groups of G. rugosa. The new species with sexually homomorphic chromosomes is thought to represent a basic stock of Japanese Glandirana, which existed far before G. rugosa originated.