{"title":"日本本州岛中部Onychodactylus属一新蝾螈(两栖纲,尾目,蝾螈科)","authors":"Natsuhiko Yoshikawa, M. Matsui","doi":"10.5358/hsj.41.82","DOIUrl":null,"url":null,"abstract":"Abstract: The number of species of salamanders of the genus Onychodactylus in Japan has increased from one to six nominal species over the past decade, by taxonomic studies based not only on morphological but also molecular phylogenetic data. However, the presence of an additional cryptic species has been suggested by a series of previous studies. Here, we describe a new species, Onychodactylus pyrrhonotus sp. nov., from the Kinki, Chubu and Hokuriku Districts of central Honshu, Japan, based on morphological and genetic evidence. It belongs to the O. japonicus species complex and is the sister species of O. kinneburi from Shikoku Island and westernmost part of Honshu with 5.5% sequence divergence in the mitochondrial cytochrome b gene. The range of the new species completely overlaps with that of O. japonicus sensu stricto, and they are syntopic in at least six known localities. As shown in a previous study, reproductive isolation between these sympatric species is substantial. The new species is morphologically most easily distinguished from congeners by coloration, a sharply defined scarlet to pinkish dorsal stripe or mottling on a black background and dusty white dots on the venter.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A New Salamander of the Genus Onychodactylus from Central Honshu, Japan (Amphibia, Caudata, Hynobiidae)\",\"authors\":\"Natsuhiko Yoshikawa, M. Matsui\",\"doi\":\"10.5358/hsj.41.82\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract: The number of species of salamanders of the genus Onychodactylus in Japan has increased from one to six nominal species over the past decade, by taxonomic studies based not only on morphological but also molecular phylogenetic data. However, the presence of an additional cryptic species has been suggested by a series of previous studies. Here, we describe a new species, Onychodactylus pyrrhonotus sp. nov., from the Kinki, Chubu and Hokuriku Districts of central Honshu, Japan, based on morphological and genetic evidence. It belongs to the O. japonicus species complex and is the sister species of O. kinneburi from Shikoku Island and westernmost part of Honshu with 5.5% sequence divergence in the mitochondrial cytochrome b gene. The range of the new species completely overlaps with that of O. japonicus sensu stricto, and they are syntopic in at least six known localities. As shown in a previous study, reproductive isolation between these sympatric species is substantial. The new species is morphologically most easily distinguished from congeners by coloration, a sharply defined scarlet to pinkish dorsal stripe or mottling on a black background and dusty white dots on the venter.\",\"PeriodicalId\":56053,\"journal\":{\"name\":\"Current Herpetology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2022-02-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Herpetology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.5358/hsj.41.82\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ZOOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Herpetology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.5358/hsj.41.82","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 3
摘要
摘要/ Abstract摘要:在过去的十年中,通过形态学和分子系统发育数据的分类研究,日本的蝾螈属(Onychodactylus)的名义种数从1种增加到6种。然而,一系列先前的研究表明存在另外一种隐种。本文基于形态学和遗传证据,描述了一种新的物种——Onychodactylus pyrrhonotus sp. nov.,来自日本本州中部近基、中部和北ku地区。它属于O. japonicus种复合体,是来自四国岛和本州最西部的O. kinneburi的姐妹种,线粒体细胞色素b基因序列差异为5.5%。该新种的分布范围与日本血吸虫(O. japonicus sensu stricto)的分布范围完全重叠,并且在至少6个已知的地方具有同位性。正如先前的研究表明,这些同域物种之间的生殖隔离是实质性的。这个新物种在形态上最容易从颜色上与同类区分开来,黑色背景上有清晰的猩红色到粉红色的背条纹或斑驳,腹部有灰白色的点。
A New Salamander of the Genus Onychodactylus from Central Honshu, Japan (Amphibia, Caudata, Hynobiidae)
Abstract: The number of species of salamanders of the genus Onychodactylus in Japan has increased from one to six nominal species over the past decade, by taxonomic studies based not only on morphological but also molecular phylogenetic data. However, the presence of an additional cryptic species has been suggested by a series of previous studies. Here, we describe a new species, Onychodactylus pyrrhonotus sp. nov., from the Kinki, Chubu and Hokuriku Districts of central Honshu, Japan, based on morphological and genetic evidence. It belongs to the O. japonicus species complex and is the sister species of O. kinneburi from Shikoku Island and westernmost part of Honshu with 5.5% sequence divergence in the mitochondrial cytochrome b gene. The range of the new species completely overlaps with that of O. japonicus sensu stricto, and they are syntopic in at least six known localities. As shown in a previous study, reproductive isolation between these sympatric species is substantial. The new species is morphologically most easily distinguished from congeners by coloration, a sharply defined scarlet to pinkish dorsal stripe or mottling on a black background and dusty white dots on the venter.
Current HerpetologyAgricultural and Biological Sciences-Animal Science and Zoology
CiteScore
1.20
自引率
14.30%
发文量
20
期刊介绍:
Current Herpetology publishes original research articles on amphibians and reptiles. It is the official journal of the Herpetological Society of Japan and is a continuation of Acta Herpetologica Japonica (1964–1971) and Japanese Journal of Herpetology (1972-1999).