Y Chromosome of D. pseudoobscura Is Not Homologous to the Ancestral Drosophila Y
- 7 January 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 307 (5706) , 108-110
- https://doi.org/10.1126/science.1101675
Abstract
We report a genome-wide search of Y-linked genes in Drosophila pseudoobscura. All six identifiable orthologs of the D. melanogaster Y-linked genes have autosomal inheritance in D. pseudoobscura. Four orthologs were investigated in detail and proved to be Y-linked in D. guanche and D. bifasciata, which shows that less than 18 million years ago the ancestral Drosophila Y chromosome was translocated to an autosome in the D. pseudoobscura lineage. We found 15 genes and pseudogenes in the current Y of D. pseudoobscura, and none are shared with the D. melanogaster Y. Hence, the Y chromosome in the D. pseudoobscura lineage appears to have arisen de novo and is not homologous to the D. melanogaster Y.Keywords
This publication has 19 references indexed in Scilit:
- The male-specific region of the human Y chromosome is a mosaic of discrete sequence classesNature, 2003
- Adaptation shapes patterns of genome evolution on sexual and asexual chromosomes in DrosophilaNature Genetics, 2003
- Identification of five new genes on the Y chromosome of Drosophila melanogasterProceedings of the National Academy of Sciences, 2001
- The degeneration of Y chromosomesPhilosophical Transactions Of The Royal Society B-Biological Sciences, 2000
- Reevaluation of Phylogeny in the Drosophila obscura Species Group Based on Combined Analysis of Nucleotide SequencesMolecular Phylogenetics and Evolution, 1999
- Evolution of the Y Sex Chromosome in AnimalsBioScience, 1996
- Is the Y chromosome of Drosophila an evolved supernumerary chromosome?BioEssays, 1996
- How Y chromosomes become genetically inert.Proceedings of the National Academy of Sciences, 1993
- Chromosome homologies within the Drosophila obscura group probed by in situ hybridizationChromosoma, 1984
- Cytological and genetic analysis of the Y chromosome of Drosophila melanogasterChromosoma, 1983