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KMID : 0381119980200030163
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Genes and Genomics
1998 Volume.20 No. 3 p.163 ~ p.172
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Allozyme Variation and Population Structure of Corbicula papyracea from Nam and Sumjin Rivers
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허만규:Huh Man-Kyu
저자없음:No authors listed
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Abstract
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Enzyme electrophoresis was used to estimate genetic diversity and population structure of Corbicula papyracea in Korea. Seventeen of the 22 loci (77.3%) studied was polymorphic and mean genetic diversity at species level and at the population level were high (Hes = 0.315; Hep = 0.294, respectively). Populations of the Sumjin River appeared to have relatively high value of genetic diversity (Hep = 0.328), whereas the value in the populations of the Nam River was distinctly lowe (Hep = 0.275). The genetic diversity trends to increase from the source of the main river to the mouth, showing a positive correlation between genetic diversity and geographic distance (r = 0.84). Indirect estimate of the number of migrants per generation (Nm = 2.14) indicates that gene flow is moderate among Korean populations of the species. In addition, analysis of fixation indices revealed a substantial heterozygosity deficiency in some populations and at some loci.
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KEYWORD
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Genetic diversity, population structure, Corbicula papyracea
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