Genetic structure in a montane ranid frog

Restricted gene flow and nuclear-mitochondrial discordance

Kirsten Monsen, Michael S. Blouin

Research output: Contribution to journalArticleResearchpeer-review

91 Citations (Scopus)

Abstract

There is substantial debate over the criteria that should be used to group populations of a species into distinct units for conservation (e.g. evolutionarily significant units, management units, distinct population segments). However, in practice molecular genetic differentiation is often the only or main criterion used to identify such units. Most genetic studies attempting to define conservation units in animals use a single molecular marker, most often mitochondrial, and use samples from a limited number of populations throughout the species' range. Although there are many benefits to using mtDNA, certain features can cause it to show patterns of differentiation among populations that do not reflect the history of differentiation at the nuclear genome where loci controlling traits of adaptive significance presumably occur. Here we illustrate an example of such mitochondrial-nuclear discordance in a ranid frog, and show how using mtDNA or nuclear loci alone could have led to very different conservation recommendations. We also found very high genetic differentiation among populations on a local scale, and discuss the conservation implications of our results.

Original languageEnglish
Pages (from-to)3275-3286
Number of pages12
JournalMolecular Ecology
Volume12
Issue number12
DOIs
StatePublished - 1 Dec 2003

Fingerprint

Gene Flow
Genetic Structures
frog
Anura
genetic structure
gene flow
frogs
Mitochondrial DNA
genetic differentiation
Population
mitochondrial DNA
genetic variation
loci
Molecular Biology
genome
molecular genetics
History
nuclear genome
Genome
animal

Keywords

  • Amphibian conservation
  • DPS
  • Discordant molecular markers
  • Gene flow
  • Ranidae

Cite this

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Genetic structure in a montane ranid frog : Restricted gene flow and nuclear-mitochondrial discordance. / Monsen, Kirsten; Blouin, Michael S.

In: Molecular Ecology, Vol. 12, No. 12, 01.12.2003, p. 3275-3286.

Research output: Contribution to journalArticleResearchpeer-review

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