Patterns of cytoplasmic variation in Arabidopsis thaliana (Brassicaceae) revealed by polymorphic chloroplast microsatellites

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Abstract

Despite being the model organism for plant molecular genetic studies, little is known about the origins and evolutionary history of extant natural populations of Arabidopsis thaliana. We have analysed phylogenetic relationships between worldwide populations of Arabidopsis using polymorphic chloroplast microsatellites. These highly variable markers have revealed previously undetected levels of cytoplasmic variation and confirm previous hypotheses of a recent and rapid expansion of the species from its centre of origin. Furthermore, the results seem to verify previous nuclear analyses that call into question the true origin of several individual Arabidopsis ecotypes.

Original languageEnglish
Pages (from-to)578-583
Number of pages6
JournalSystematic Botany
Volume28
Issue number3
StatePublished - 1 Jul 2003

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