Genetic Differentiation Within and Between Species of the Drosophila willistoni Group
نویسندگان
چکیده
منابع مشابه
Genetic differentiation within and between species of the Drosophila willistoni group.
We describe allelic variation at 28 loci in six Caribbean populations of four sympatric species of Drosophila. Within any one species the allelic frequencies are very similar from population to population, although there is evidence of local as well as regional genetic differentiation. The genetic distance is greater between populations from different islands than between populations of the sam...
متن کاملEnzyme variability in the Drosophila willistoni group. I. Genetic differentiation among sibling species.
We have studied by gel electrophoresis the variability of 14 structural genes in four sibling species, Drosophila willistoni, D. paulistorum, D. equinoxialis, and D. tropicalis. Samples of about 30 populations from different parts of the distribution areas of each species were examined. Genetic variants are found at every locus; 67% of the loci are polymorphic, having two or more alleles, the r...
متن کاملThe willistoni group of sibling species of Drosophila.
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متن کاملEnzyme variability in the Drosophila willistoni group. IV. Genic variation in natural populations of Drosophila willistoni.
We describe allelic variation at 28 gene loci in natural populations of D. willistoni. Seventy samples were studied from localities extending from Mexico and Florida, through Central America, the West Indies, and tropical South America, down to South Brazil. At least several hundred, and often several thousand, genomes were sampled for each locus. We have discovered a great deal of genetic vari...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1974
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.71.3.999