Population structure, history and gene flow in a group of closely related land snails: genetic variation in Partula from the Society Islands of the Pacific

Molecular Ecology
S L Goodacre

Abstract

Previous studies of Partula land snails from the Society Islands, French Polynesia, have shown that populations within species are highly differentiated in terms of their morphology, behaviour, ecology and molecular genetic variation. Despite this level of variability, differences between species are sometimes small, possibly reflecting the fact that reproductive isolation is not always complete and there exists the opportunity for genetic exchange between taxa through hybridization. The present study uses sequence data from a mitochondrial gene to further investigate genetic variation in Society Island Partula. Most populations are found in this study to be highly differentiated, but within individual species there seems to be no simple relationship either between genetic distance and geographical proximity, or between variation in mitochondria and that in allozymes or morphological characteristics. Among species there appears to be no simple correlation between degrees of reproductive isolation and genetic relatedness according to mitochondrial DNA. The results suggest that past events as well as ongoing drift and selection may have been important in affecting patterns of variation. Similarities among species at specific loca...Continue Reading

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Citations

Jun 30, 2004·Molecular Phylogenetics and Evolution·Brenden S Holland, Michael G Hadfield
Sep 13, 2007·Proceedings. Biological Sciences·Taehwan LeeDiarmaid O Foighil
Sep 5, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Angus Davison, Satoshi Chiba
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Aug 19, 2009·BMC Evolutionary Biology·Taehwan LeeDiarmaid O Foighil
Sep 10, 2005·PLoS Biology·Angus DavisonBryan Clarke
Aug 31, 2007·Molecular Phylogenetics and Evolution·Omar Mejía, Gerardo Zúñiga
Aug 24, 2016·BMC Evolutionary Biology·Pedro E RomeroMarkus Pfenninger
Sep 30, 2016·Molecular Phylogenetics and Evolution·Amanda E HaponskiDiarmaid Ó Foighil
May 14, 2019·Evolutionary Applications·Amanda E HaponskiDiarmaid Ó Foighil

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