Genetic Divergence and Variability in Puntius spp.

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Genetic divergence and variability in six Puntius spp. were electrophoretically assayed. Twenty-four loci from sixteen enzymes and protein were identified. Almost all the loci for each species were monomorphic. Only two loci, 6PGDH in P. schwanenfeldii and MDH-1 in P. tetrazona were polymorphic. In general, genetic variability of the species examined was very low. The genetic distance between pair of stocks, based on the twenty-four isozymes and protein loci, showed no genetic differentiation among subpopulations of the Puntius gonionotus from different locations. From the estimation of genetic distance and the dendrogram, the Puntius spp. can be divided into four groups, e. g., the big fishes group, the small fishes group, and two other groups originated in China and Indonesia.
日本水産増殖学会の論文