Article
Evidence for the evolutionary nascence of a novel sex determination pathway in honeybees.
Nature - 24 Jul 2008
Hasselmann Martin, Gempe Tanja, Schiøtt Morten, Nunes-Silva Carlos Gustavo, Otte Marianne, Beye Martin
Abstract excerpt
Sex determination in honeybees (Apis mellifera) is governed by heterozygosity at a single locus harbouring the complementary sex determiner (csd) gene, in contrast to the well-studied sex chromosome system of Drosophila melanogaster. Bees heterozygous at csd are females, whereas homozygotes and hemizygotes (haploid individuals) are males. Although at least 15 different csd alleles are known among natural bee...
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