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Title: Highly complex mitochondrial DNA genealogy in an endemic Japanese subterranean breeding brown frog Rana tagoi (Amphibia, Anura, Ranidae).
Authors: Eto, Koshiro
Matsui, Masafumi  KAKEN_id
Sugahara, Takahiro
Tanaka-Ueno, Tomoko
Author's alias: 松井, 正文
Keywords: Rana tagoi
Japan
mtDNA
paraphyly
cryptic species
subterranean breeding
genetic divergence
Issue Date: Oct-2012
Publisher: Zoological Society of Japan
Journal title: Zoological science
Volume: 29
Issue: 10
Start page: 662
End page: 671
Abstract: The endemic Japanese frog Rana tagoi is unique among Holarctic brown frogs in that it breeds in small subterranean streams. Using mitochondrial 16S ribosomal RNA and NADH dehydrogenase subunit 1 genes, we investigated genealogical relationships among geographic samples of this species together with its relative R. sakuraii, which is also a unique stream breeder. These two species together form a monophyletic group, within which both are reciprocally paraphyletic. Rana tagoi is divided into two major clades (Clade A and B) that are composed of 14 genetic groups. Rana sakuraii is included in Clade A and split into two genetic groups, one of which forms a clade (Subclade A-2) with sympatric R. tagoi. This species-level paraphyly appears to be caused by incomplete taxonomy, in addition to introgressive hybridization and/or incomplete lineage sorting. Rana tagoi strongly differs from other Japanese anurans in its geographic pattern of genetic differentiation, most probably in relation to its unique reproductive habits. Taxonomically, R. tagoi surely includes many cryptic species.
Rights: © 2012 Zoological Society of Japan
URI: http://hdl.handle.net/2433/182953
DOI(Published Version): 10.2108/zsj.29.662
PubMed ID: 23030339
Appears in Collections:Journal Articles

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