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Population Structure and Evolution after Speciation of the Hokkaido Salamander (Hynobius retardatus)

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Title: Population Structure and Evolution after Speciation of the Hokkaido Salamander (Hynobius retardatus)
Authors: Matsunami, Masatoshi Browse this author →KAKEN DB
Igawa, Takeshi Browse this author →KAKEN DB
Michimae, Hirofumi Browse this author →KAKEN DB
Miura, Toru Browse this author →KAKEN DB
Nishimura, Kinya Browse this author →KAKEN DB
Issue Date: 4-Jun-2016
Publisher: PLOS
Journal Title: PLoS ONE
Volume: 11
Issue: 6
Start Page: e0156815
Publisher DOI: 10.1371/journal.pone.0156815
Abstract: The Hokkaido salamander (Hynobius retardatus) is endemic to Hokkaido Island, Japan, and shows intriguing flexible phenotypic plasticity and regional morphological diversity. However, to date, allozymes and partial mitochondria DNA sequences have provided only an outline of its demographic histories and the pattern of its genetic diversification. To understand the finer details of the population structure of this species and its evolution since speciation, we genotyped five regional populations by using 12 recently developed microsatellite polymorphic markers. We found a clear population structure with low gene flow among the five populations, but a close genetic relationship between the Teshio and Kitami populations. Our demographic analysis suggested that Teshio and Erimo had the largest effective population sizes among the five populations. These findings regarding the population structure and demography of H. retardatus improve our understanding of the faunal phylogeography on Hokkaido Island and also provide fundamental genetic information that will be useful for future studies.
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 西村 欣也

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