Microsatellite analysis of Pinus taeda L. in Zimbabwe

Deducing the origin of early 20th century introductions of Pinus taeda into Zimbabwe is possible given microsatellite markers and clear population differentiation in ancestral U.S. populations. This study was designed to determine whether P. taeda introductions into Zimbabwe came from one U.S. regio...

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Bibliographic Details
Published in:Heredity 2000-02, Vol.84 (2), p.261-268
Main Authors: Williams, Claire G, Elsik, Christine G, Barnes, Richard D
Format: Article
Language:English
Subjects:
Alleles
Biomedical and Life Sciences
Biomedicine
conifers
Cycadopsida - genetics
Cytogenetics
Ecology
Evolution, Molecular
Evolutionary Biology
Genetic Variation
Human Genetics
Microsatellite Repeats
Models, Genetic
Models, Statistical
original-article
Phylogeny
Pine trees
Pinus taeda
Plant Genetics and Genomics
Population differentiation
population dynamics
Principal components analysis
Zimbabwe
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Summary:Deducing the origin of early 20th century introductions of Pinus taeda into Zimbabwe is possible given microsatellite markers and clear population differentiation in ancestral U.S. populations. This study was designed to determine whether P. taeda introductions into Zimbabwe came from one U.S. region or whether the present-day population is an admixture of introductions from east and west of the Mississippi River Valley. Principal components analysis, Cavalli-Sforza and Edwards’ chord distances and presence of diagnostic alleles each indicate that the Zimbabwe population is an admixture. There were five novel alleles in the Zimbabwe population not represented in the indigenous U.S. populations, possibly because of de novo mutation, introgression with other introduced North American pines or sampling error.
ISSN:0018-067X
1365-2540
DOI:10.1046/j.1365-2540.2000.00666.x