A Phylogenetically Distinct Group of Glandirana rugosa Found in Kyushu, Japan

Akira Oike, Masatake Mochizuki, Koji Tojo, Takanori Matsuo, Yoriko Nakamura, Shigeki Yasumasu, Etsuro Ito, Takayuki Arai, Masahisa Nakamura*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The Japanese wrinkled frog Glandirana rugosa is separated into five genetically different groups. One group in western Japan is further divided into three subgroups, found in Kyushu, Shikoku, and western Honshu. We collected G. rugosa frogs at 39 sites in Kyushu and determined nucleotide sequences of the mitochondrial 12S and 16S rRNA genes for phylogenetic analysis. Unexpectedly, we found a group of frogs in southeastern Kyushu that did not cluster with any of the pre-existing five groups of G. rugosa on the phylogenetic trees. The frogs in the new group and G. rugosa in Kyushu were externally similar, but there were a few significant differences in morphological features between the two populations. In addition, we observed significant differences in the frogs' calls . Thus, the group of the frogs in southeastern Kyushu may represent a new candidate species in the genus Glandirana. We discuss the possibility of a new species.

Original languageEnglish
Pages (from-to)193-202
Number of pages10
JournalZoological Science
Volume37
Issue number2
DOIs
Publication statusPublished - 2020 Apr 6

Keywords

  • Glandirana rugosa
  • Japan
  • Kyushu
  • calls
  • new group
  • parapatric populations
  • phylogeny

ASJC Scopus subject areas

  • Animal Science and Zoology

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