Lack of genic similarity between two sibling species of drosophila as revealed by varied techniques.
نویسنده
چکیده
Acrylamide gel electrophoresis was performed on the enzyme xanthine dehydrogenase in sixty isochromosomal lines of Drosophila persimilis from three geographic populations. Sequential electrophoretic analysis using varied gel concentrations and buffers revealed twenty-three alleles in this species where only five had been described previously. These new electrophoretic techniques also detected a profound increase in divergence of gene frequencies at this locus between D. persimilis and its sibling species D. pseudoobscura. The implications of these results for questions of speciation and the maintenance of genetic variability are discussed.
منابع مشابه
A comprehensive study of genic variation in natural populations of Drosophila melanogaster. VII. Varying rates of genic divergence as revealed by two-dimensional electrophoresis.
Four sibling species from the melanogaster subgroup (Drosophila melanogaster, D. simulans, D. sechellia, and D. mauritiana) were studied for genetic divergence, by high-resolution two-dimensional protein electrophoresis (2DE) coupled with ultrasensitive silver staining. A total of eight tissues from larval and adult developmental stages representing both gonadal (germ-line) and nongonadal (soma...
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ورودعنوان ژورنال:
- Genetics
دوره 84 3 شماره
صفحات -
تاریخ انتشار 1976