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Conservation Genetics Resources

, Volume 4, Issue 2, pp 243–246 | Cite as

Identification of twenty one microsatellite loci for conservation genetic studies of the endemic butterflyfish Chaetodon tricinctus

  • Martin H. van der Meer
  • Michael G. Gardner
  • Jean-Paul A. Hobbs
  • Morgan Pratchett
  • Lynne van Herwerden
Technical Note

Abstract

Coral reef habitats are increasingly under threat from global warming and this has influenced the associated reef fish communities. Chaetodon tricinctus is a butterflyfish endemic to the offshore reefs of Elizabeth Reef, Middleton Reef, Lord Howe Island and Norfolk Island off Australia’s east coast. It is a highly specialised coral reef fish that is thought to rely on Acroporid coral species exclusively for food and shelter. We developed primers for twenty one microsatellite loci to reveal gene flow, population genetic structure and genetic diversity within and among these three reefs. Observed heterozygosities ranged from 0.185 to 0.964 and expected heterozygosities ranged from 0.230 to 0.889 in 30 individuals from Middleton Reef. When cross tested with Chaetodon trifascialis, a closely related species, there was poor amplification success and only a moderate level of polymorphism. Therefore, although these loci will be useful in C. tricinctus, it is unlikely that they can be used on other related butterflyfishes.

Keywords

Coral reef fish Island endemics Genetic diversity Cross-species amplification 

Notes

Acknowledgments

We are grateful for the valuable support and assistance provided by Sallyann Gudge and Ian Kerr. We thank the Lord Howe Island Board, Envirofund Australia (Natural Heritage Trust) and the Lord Howe Island Marine Park for financial and logistical support. We also thank R. Lawton for the Chaetodon trifascialis samples.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Martin H. van der Meer
    • 1
    • 2
  • Michael G. Gardner
    • 4
    • 5
  • Jean-Paul A. Hobbs
    • 2
    • 3
  • Morgan Pratchett
    • 2
    • 3
  • Lynne van Herwerden
    • 1
    • 2
  1. 1.Molecular Ecology and Evolution Laboratory, Australian Tropical Sciences and Innovation PrecinctJames Cook UniversityTownsvilleAustralia
  2. 2.School of Marine and Tropical BiologyJames Cook UniversityTownsvilleAustralia
  3. 3.ARC Centre of Excellence for Coral Reef StudiesJames Cook UniversityTownsvilleAustralia
  4. 4.School of Biological SciencesFlinders UniversityAdelaideAustralia
  5. 5.Australian Centre for Evolutionary Biology and BiodiversityUniversity of AdelaideAdelaideAustralia

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