| divergence between drosophila santomea and allopatric or sympatric populations of d. yakuba using paralogous amylase genes and migration scenarios along the cameroon volcanic line. | we have used two paralogous genes (amyrel and amy) of the amylase multigene family to reconstruct the phylogeny of the nine drosophila melanogaster subgroup sister species, including d. santomea, the newly discovered endemic from são tomé island. the evolutionary divergence of these genes is of special interest as it is suspected to result from physiological evolution via gene duplication. this paper describes the relationship between the geographical origin of the various strains and the patter ... | 2001 | 11298976 |
| evolutionary novelties in islands: drosophila santomea, a new melanogaster sister species from são tomé. | the finding of new melanogaster sister species may help us in understanding more about how the emergence of genetic novelties, particularly in insular habitats, can result in speciation. here we report on the discovery of drosophila santomea, which is the first melanogaster sibling found off west-equatorial africa, on são tomé, one of the gulf of guinea islands. although the eight other melanogaster sister species are remarkably conservative in their morphology except for their terminalia, the n ... | 2000 | 11007323 |