| Literature DB >> 12511656 |
Michael Parisi1, Rachel Nuttall, Daniel Naiman, Gerard Bouffard, James Malley, Justen Andrews, Scott Eastman, Brian Oliver.
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 in Drosophila 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.Entities:
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Year: 2003 PMID: 12511656 PMCID: PMC1363366 DOI: 10.1126/science.1079190
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728