Genetic variation in the mangrove periwinkle Littorina angulifera

M. S. Gaines, J. Caldwell, A. M. Vivas

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

Twenty populatios of Littorina angulifera, inhabiting islands composed of the mangrove tree Rhizophora mangle, were assayed at an esterase locus to determine whether genetic differentiation was associated with distance between populations. It was predicted, on the basis of larval dispersal in this species, that genetic differentiation between populations on islands separated by long distances should be greater than those on islands located near each other. A chi0square test of homogeneity revealed significant differences in esterase gene frequencies among the 20 island populations. However, there was no association of distance between islands and genetic heterogeneity. In addition, a cline in gene frequency was found to be assiciated with latitude. Factors responsible for the observed pattern of heterogeneity at the esterase locus are discussed.

Original languageEnglish (US)
Pages (from-to)327-332
Number of pages6
JournalMarine Biology
Volume27
Issue number4
DOIs
StatePublished - Dec 1 1974
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

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