Abstract
Genus Phyllostachys is a long-lived woody species primarily distributed throughout South East Asia. Many species of this genus has been regarded as medically and ecologically important in the world. We evaluated representative samples of the four taxa with RAPD to estimate genetic relationships within the genus Phyllostachys. The percentages of polymorphic loci were 8.9-33.3% at the species level. P. bambusoides was found to show lower genetic diversity (H=0.018) than other species. Total genetic diversity (H T ) was 0.315, genetic diversity within populations (H S ) was 0.043, the proportion of total genetic diversity partitioned among populations (G ST ) was 0.659 and the gene flow (Nm) was 0.0263. As some Korean populations were isolated and patchily distributed, they exhibited low levels of genetic diversity. The four taxa of the genus Phyllostachys analyzed were distinctly related to a monophyletic. P. nigra var. henonis. Stapf was found to be more closely related to P. pubescens than to P. nigra. P. bambusoides was quite distinct from the remaining species.
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