Is the Y chromosome of Drosophila an evolved supernumerary chromosome?
Authors: Hackstein, J.H.P.; Hochstenbach, R.; HauschteckJungen, E.; Beukeboom, L.W.;
Is the Y chromosome of Drosophila an evolved supernumerary chromosome?
Abstract
AbstractThe Y chromosomes of most Drosophila species are necessary for male fertility but they are not involved in sex determination. They have many puzzling properties that resemble the effects caused by B chromosomes. Classical genetic and molecular studies reveal substantial affinities between Y and B chromosomes and suggest that the Y chromosomes of Drosophila are not degenerated homologues of the X chromosomes, but rather that their Y chromosomes evolved as specialized supernumeraries similar to classical B chromosomes.
Related Organizations
- University of Zurich Switzerland
- University of Groningen Netherlands
- Radboud University Nijmegen Netherlands
Keywords
Evolution, Molecular, Fertility, Sex Chromosomes, Heterochromatin, Y Chromosome, Animals, Humans, Drosophila
Evolution, Molecular, Fertility, Sex Chromosomes, Heterochromatin, Y Chromosome, Animals, Humans, Drosophila
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