Genetic studies of two sister species in the Drosophila melanogaster subgroup, D. yakuba and D. santomea
نویسندگان
چکیده
منابع مشابه
Genetic studies of two sister species in the Drosophila melanogaster subgroup, D. yakuba and D. santomea.
We performed genetic analysis of hybrid sterility and of one morphological difference (sex-comb tooth number) on D. yakuba and D. santomea, the former species widespread in Africa and the latter endemic to the oceanic island of São Tomé, on which there is a hybrid zone. The sterility of hybrid males is due to at least three genes on the X chromosome and at least one on the Y, with the cytoplasm...
متن کاملMultilocus analysis of introgression between two sympatric sister species of Drosophila: D. yakuba and D. santomea
3 Drosophila yakuba is widely distributed in sub-Saharan Africa, while D. santomea is endemic to the volcanic island of São Tomé in the Atlantic Ocean, 280 km west of Gabon. On São Tomé, D. yakuba is found mainly in open lowland forests, while D. santomea is restricted to the wet misty forests at higher elevations. At intermediate elevations, the species form a hybrid zone where hybrid males oc...
متن کاملMultilocus analysis of introgression between two sympatric sister species of Drosophila: Drosophila yakuba and D. santomea.
Drosophila yakuba is widely distributed in sub-Saharan Africa, while D. santomea is endemic to the volcanic island of São Tomé in the Atlantic Ocean, 280 km west of Gabon. On São Tomé, D. yakuba is found mainly in open lowland forests, and D. santomea is restricted to the wet misty forests at higher elevations. At intermediate elevations, the species form a hybrid zone where hybrids occur at a ...
متن کاملGenetic and Transgenic Reagents for Drosophila simulans, D. mauritiana, D. yakuba, D. santomea, and D. virilis
Species of the Drosophila melanogaster species subgroup, including the species D. simulans, D. mauritiana, D. yakuba, and D. santomea, have long served as model systems for studying evolution. However, studies in these species have been limited by a paucity of genetic and transgenic reagents. Here, we describe a collection of transgenic and genetic strains generated to facilitate genetic studie...
متن کاملQuantitative trait loci affecting the difference in pigmentation between Drosophila yakuba and D. santomea.
Using quantitative trait locus (QTL) mapping, we studied the genetic basis of the difference in pigmentation between two sister species of Drosophila: Drosophila yakuba, which, like other members of the D. melanogaster subgroup, shows heavy black pigmentation on the abdomen of males and females, and D. santomea, an endemic to the African island of São Tomé, which has virtually no pigmentation. ...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 2004
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672304007013