Invalid specific status of Hynobius sadoensis Sato: electrophoretic evidence (Amphibia: Caudata)
Invalid specific status of Hynobius sadoensis Sato: electrophoretic evidence (Amphibia: Caudata)
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Hynobius satoensis Sato 的具体状态无效：电泳证据（两栖类：有尾目）
DOI：
10.2307/1564886
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发表时间：
1992
影响因子：
0.8
通讯作者：
M. Kumakura
中科院分区：
文献类型：
--
作者：
M. Matsui;H. Iwasawa;Hisashi Takahashi;Terutake Hayashi;M. Kumakura
本文研究了日本海佐渡岛小鲵和日本小鲵的等位酶变异。产于日本本州。Sadoensis不能从遗传上与Hynobius的种群区分开来。nigrescens，因此与H.黑色的中国大陆群体间存在复杂的遗传分化模式。黑色的佐渡蝾螈（Hynobius sadoensis）是由佐藤（Sato，1940年）在日本海佐渡岛（日本本土中部地区新泻海岸外）发现的。Sato（1940）注意到该种与H. nigrescens Stejneger，1907，但在成虫的外部和内部形态以及卵囊被膜等方面与之不同。黑小鲵（Hynobius nigrescens）是分布最广的日本小鲵，分布于日本东北部的东北地区、关东地区和中部地区（Iwasawa，1981）。中村和U6 no（1963）认为这两个种是同一种，并将其同群化。sadoensis与H. Sato（1940）从本州岛新泻沿岸的阿盘海佐渡岛捕获的黑腹蝾螈（Hynobius adoensis）。Sato（1940）认为该种与H. 1907年发现的，但与之不同。5现藏：日本宇都宫市栃木县立博物馆，邮编320。而不认识亚种。后来，Okada（1970）将H. sadoensis为H.黑色的这两种分类学处理都相对肤浅，并且很少有后续研究解决这个问题（Iwasawa，1981; Nambu，1991）。小鲵属的小型蝾螈，包括小鲵H。sadoensis和H.众所周知，仅基于形态学难以识别变黑菌。最近对日本小鲵的研究表明，电泳对于阐明这些蝾螈种群的分类地位和系统关系特别有用（Matsui和宫崎，1984; Matsui，1987）。本研究为将小鲵（Hynobius sadoensis）归入小鲵（H. ni-
Allozyme variation was examined in Hynobius sadoensis from Sado Island in the Japan Sea and H. nigrescens from Honshu, Japan. Hynobius sadoensis cannot be distinguished genetically from populations of H. nigrescens, and is thus synonymized with H. nigrescens. A complex pattern of genetic differentiation was found among mainland populations of H. nigrescens. The Sado salamander, Hynobius sadoensis, was described by Sato (1940) from Sado Island in the Japan Sea, off the coast of Niigata in the Chubu District of mainland Honshu. Sato (1940) noted that this species was most similar to H. nigrescens Stejneger, 1907, but differed from it in several characteristics of adult external and internal morphology, and the egg sac envelope. Hynobius nigrescens is the most widely distributed of Japanese Hynobius species; it occurs throughout the Tohoku District and parts of the Kanto and Chubu districts of northeastern Honshu (Iwasawa, 1981). Nakamura and U6no (1963) considered these two species conspecific and synonymized H. sadoensis with H. nigrescens, ado salamander, Hynobius adoensis, was ibed by Sato (1940) from Sado Island in apan Sea, of the coast of Niigata in the District of mainland Honshu. Sato (1940) that this species was most similar to H. escens Stejneger, 1907, but differ d from it 5 Present Address: Tochigi Prefectural Museum, Utsunomiya, Tochigi 320, Japan. without recognizing subspecies. Later, Okada (1970) treated H. sadoensis as a distinct subspecies of H. nigrescens. Both of these taxonomic treatments were relatively superficial, and few subsequent studies have addressed this problem (Iwasawa, 1981; Nambu, 1991). Small salamanders of the genus Hynobius, including H. sadoensis and H. nigrescens, are notoriously difficult to identify based on morphology alone. Recent studies of Japanese Hynobius demonstrate that electrophoresis is particularly useful for clarifying the taxonomic status of populations and systematic relationships of these salamanders (Matsui and Miyazaki, 1984; Matsui, 1987). This study provides electrophoretic evidence that Hynobius sadoensis should be included in the synonymy of H. ni-