Nuclear and plastid DNA data confirm that Sedum tosaense (Crassulaceae) has a disjunct distribution between Pacific mainland Japan and Jeju Island, Korea

Takuro Ito, Koh Nakamura, Chan Ho Park, Gwan Pil Song, Ayako Maeda, Yuki Tanabe, Goro Kokubugata

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Our molecular phylogeographic analyses based on the nrDNA ITS and cpDNA trnLF of Sedum tosaense populations in the Shikoku District, Japan and Jeju Island, Korea suggested a disjunct distribution. Plants of S. tosaense from the two regions comprised a well-supported clade consisted of plants from Kochi (Shikoku District) and those from Jeju Island; we estimated a divergence time of 0.61 Ma between the Kochi and Jeju populations based on the ITS and partial trnLF. We conclude that: 1) S. tosaense has a disjunct distribution between Kochi and Jeju Island, and 2) plants of this species might have dispersed between Kochi and Jeju Island over water, but not via a land bridge, which flooded before subclade divergence.

Original languageEnglish
Pages (from-to)221-230
Number of pages10
JournalPhytotaxa
Volume177
Issue number4
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Disjunct distribution
  • ITS
  • Japan
  • Jeju
  • Kochi
  • Korea
  • Sedum
  • TrnLF

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

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