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KMID : 1161520050090010027
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Animal Cells and Systems
2005 Volume.9 No. 1 p.27 ~ p.35
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Genetic variation in geographically peripheral populations of bupleurum euphorbioides (apiaceae) with comparison to a widespread congener, B. longiradiatum
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Kim Hui
Chang Chin-Sung
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Abstract
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Bupleurum euphorbioides is isolated and restricted to high mountains in Korea northeastern China. Its conservation depends on whether it is threatened by inbreeding or a loss of genetic diversity. We compared the genetic variability in B. euphorbioides with B. longiradiatum, a widespread congener, to understand how they differ in their population genetic structure. Although B. euphorbioides showed a little lower genetic variability than B. longiradiatum, FIS statistics for most loci were strongly positive in both B. euphorbioides (0.445) and B. longiradiatum (0.553). In addition, B. euphorbioides showed higher mean FST value than B. longiradiatum (0.297 vs 0.194). It might be due to the polycarpic nature of B. longiradiatum, which holds higher genetic potentials effectively in homogeneous environment than the monocarpic B. euphorbioides. The results suggested that B. euphorbioides is a genetically viable species, and that they are threatened primarily by environmental factor.
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KEYWORD
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Bupleurum euphorbioides, Bupleurum longiradiatum, conservation priority, inbreeding, monocarpic, polycarpic
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