Molecular analysis of gene flow in the hydrothermal vent clam (Calyptogena magnifica)

Stephen A. Karl, Steven Schutz, Daniel Desbruyères, Richard Lutz, Robert C. Vrijenhoek

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32 Scopus citations


We present molecular genetic data from 17 soluble proteins and five single-copy nuclear (scn) DNA loci for eastern Pacific populations of the hydrothermalvent clam, Calyptogena magnifica (Bivalvia: Vesicomyidae). The level of genetic polymorphism found within these clam populations was low relative to that found in most other hydrothermal vent species examined to date. In addition, the high degree of genetic homogeneity observed across populations separated by thousands of kilometers suggests that C. magnifica larvae can effectively disperse throughout the known range of this species. The spotty occurrence of C. magnifica populations across this range suggests that these clams may experience a high probability of local extinction events or have a low probability of establishing new colonies.

Original languageEnglish (US)
Pages (from-to)193-202
Number of pages10
JournalMolecular Marine Biology and Biotechnology
Issue number3
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Applied Microbiology and Biotechnology


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