Molecular population genetics of the alcohol dehydrogenase locus in the Hawaiian drosophilid D. mimica
| Autor: | Francisco J. Ayala, R K Selander, C D Campbell |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Linkage disequilibrium
Molecular Sequence Data Population genetics Locus (genetics) Genes Insect Balancing selection Hawaii Effective population size Genetics Animals Allele Molecular Biology Gene Ecology Evolution Behavior and Systematics Phylogeny Alcohol dehydrogenase Polymorphism Genetic biology fungi Alcohol Dehydrogenase Genetic Variation Sequence Analysis DNA biology.protein Drosophila Female |
| Zdroj: | Molecular biology and evolution. 13(10) |
| ISSN: | 0737-4038 |
| Popis: | Sequence variation among 10 alleles of the alcohol dehydrogenase (Adh) gene of the Hawaiian drosophilid D. mimica was analyzed with reference to the evolutionary history of the Hawaiian subgroup as well as to levels and patterns of polymorphism of the Adh gene in continental drosophilid species. The Adh gene of D. mimica is less polymorphic than that of other drosophilid species, and no replacement substitutions were found. Statistical analyses of the Adh alleles suggested the action of balancing selection and revealed significant linkage disequilibrium among three of the variable sites. The effective population size was estimated to be only slightly smaller than that of continental species and, surprisingly, on the same order of magnitude as the actual size. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|