Intraspecific diversity of mitochondrial DNA in the land snail Euhadra peliomphala (Bradybaenidae)

Morito Hayashi, Satoshi Chiba

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Exceptionally high levels of intraspecific variation of mitochondrial DNA (mtDNA) sequences encoding 16S ribosomal RNA (16SrRNA) were detected in populations of the land snail Euhadra peliomphala from the eastern part of Japan. Geographical isolation has occurred within small areas and has created many genetically distinct local populations. These are morphologically segregated into two groups: the first consists of populations from the southern part of the Izu Peninsula, and the second of populations from other areas within the peninsula. They are separated by mountains in the middle of the peninsula. Sequence divergences between these two groups were 7.6-9.5%. The sequence divergences and geological ages of the Izu peninsula and its mountains suggest that the divergence rate of mitochondrial 16SrRNA sequences of this species is extremely rapid, approximately 10% per million years. This rapid evolutionary rate of mtDNA and vicariance events due to tectonic events and sea level changes has also contributed to creating exceptional geographical variation in the mtDNA of this species. (C) 2000 The Linnean Society of London.

Original languageEnglish
Pages (from-to)391-401
Number of pages11
JournalBiological Journal of the Linnean Society
Volume70
Issue number3
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

Keywords

  • Evolutionary rate
  • Genetic variation
  • Mitochondrial DNA
  • Pulmonata

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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