Paucity of Genes on the Drosophila X Chromosome Showing Male-Biased Expression
Top Cited Papers
- 31 January 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 299 (5607) , 697-700
- https://doi.org/10.1126/science.1079190
Abstract
Sex chromosomes are primary determinants of sexual dimorphism in many organisms. These chromosomes are thought to arise via the divergence of an ancestral autosome pair and are almost certainly influenced by differing selection in males and females. Exploring how sex chromosomes differ from autosomes is highly amenable to genomic analysis. We examined global gene expression inDrosophila melanogaster and report a dramatic underrepresentation of X-chromosome genes showing high relative expression in males. Using comparative genomics, we find that these same X-chromosome genes are exceptionally poorly conserved in the mosquito Anopheles gambiae. These data indicate that the X chromosome is a disfavored location for genes selectively expressed in males.Keywords
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