Geographical differentiation of allozymic variability in natural Indian populations ofDrosophila melanogaster |
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Authors: | Ravi Parkash Shamina |
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Institution: | (1) Department of Biosciences, Maharshi Dayanand University, 124001 Rohtak, India |
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Abstract: | Fourteen Indian populations ofD. melanogaster collected along a 22° latitudinal range were analyzed electrophoretically to compare the geographical patterns of allozymic variation at 13 loci. The data show higher genetic differentiation on the basis of moderate to higherF
ST values and significant statistical correlation of allelic frequencies at six polymorphic loci with latitude. The results add support to the hypothesis that the occurrence of parallel or complementary latitudinal clines across different continental populations provides evidence of natural selection maintaining such clinal variation. |
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Keywords: | starch gel electrophoresis geographical populations D melanogaster genetic divergence clines |
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