Comparative population structuring of molecular and allozyme variation of Drosophila melanogaster Adh between Europe, west Africa and east Africa.

摘要: Restriction enzyme molecular variation in Drosophila melanogaster Adh was compared between three natural populations from Europe, West Africa and East Africa. The frequency distribution of silent the slow allele compatible with neutral model all samples. number haplotypes significantly higher than other two populations. largest divergence, as measured by Fst, African population a group made up African, European, previously studied American We suggest that split first occurred within at least 44000 years ago. European separated more recently, last glacial maximum post-glacial optimum, 18,000 to 8,000 this species domesticated recently relative human evolution, possibly advent agriculture. Population differentiation respect allozymes, fast slow, does not follow geographical pattern variation. It opposes both populations, probably results selection for adaptation alcohol recent temperate