Chloroplast microsatellite evolution in conifers: measures of genetic diversity and the effect of homoplasy

Navascues, M. and Emerson, B.C. (2005) Chloroplast microsatellite evolution in conifers: measures of genetic diversity and the effect of homoplasy. Molecular Ecology, 14. pp. 1333-1341. ISSN 1365-294X

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Abstract

Chloroplast microsatellites have been widely used in population genetic studies of conifers in recent years. However, their haplotype configurations suggest that they could have high levels of homoplasy, thus limiting the power of these molecular markers. A coalescent-based computer simulation was used to explore the influence of homoplasy on measures of genetic diversity based on chloroplast microsatellites. The conditions of the simulation were defined to fit isolated populations originating from the colonization of one single haplotype into an area left available after a glacial retreat. Simulated data were compared with empirical data available from the literature for a species of Pinus that has expanded north after the Last Glacial Maximum. In the evaluation of genetic diversity, homoplasy was found to have little influence on Nei's unbiased haplotype diversity (HE) while Goldstein's genetic distance estimates were much more affected. The effect of the number of chloroplast microsatellite loci for evaluation of genetic diversity is also discussed.

Item Type: Article
Faculty \ School: Faculty of Science > School of Biological Sciences
UEA Research Groups: Faculty of Science > Research Groups > Organisms and the Environment
Depositing User: EPrints Services
Date Deposited: 01 Oct 2010 13:37
Last Modified: 17 Jan 2024 01:22
URI: https://ueaeprints.uea.ac.uk/id/eprint/957
DOI: 10.1111/j.1365-294X.2005.02504.x

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