Genetic variation in the mangrove periwinkle Littorina angulifera

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

Research output: Contribution to journalArticle

15 Citations (Scopus)

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

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Littorina
mangrove
genetic variation
esterases
genetic differentiation
gene frequency
Rhizophora mangle
species dispersal
loci
cline
gene
homogeneity
testing

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Genetic variation in the mangrove periwinkle Littorina angulifera. / Gaines, Michael; Caldwell, J.; Vivas, A. M.

In: Marine Biology, Vol. 27, No. 4, 01.12.1974, p. 327-332.

Research output: Contribution to journalArticle

Gaines, Michael ; Caldwell, J. ; Vivas, A. M. / Genetic variation in the mangrove periwinkle Littorina angulifera. In: Marine Biology. 1974 ; Vol. 27, No. 4. pp. 327-332.
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