منابع مشابه
Evolution of Sex - Biased Expression in Caenorhabditis
Title of Document: EVOLUTION OF SEX-BIASED EXPRESSION IN CAENORHABDITIS Cristel G. Thomas, Doctor of Philosophy, 2011 Directed By: Associate Professor Eric S. Haag, Department of Biology Mating systems have a profound impact on genome structure evolution, both indirectly through their effects on population genetics and directly due to the genetic control of reproductive traits. Most extant Caen...
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Sex-biased genes are thought to drive phenotypic differences between males and females. The recent availability of high-throughput gene expression data for many related species has led to a burst of investigations into the genomic and evolutionary properties of sex-biased genes. In Drosophila, a number of studies have found that X chromosomes are deficient in male-biased genes (demasculinized) ...
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متن کاملMolecular evolution of sex-biased genes in Drosophila.
Studies of morphology, interspecific hybridization, protein/DNA sequences, and levels of gene expression have suggested that sex-related characters (particularly those involved in male reproduction) evolve rapidly relative to non-sex-related characters. Here we report a general comparison of evolutionary rates of sex-biased genes using data from cDNA microarray experiments and comparative genom...
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Many genes in higher eukaryotes show sexually dimorphic expression, and these genes tend to be among the most divergent between species. In most cases, however, it is not known whether this rapid divergence is caused by positive selection or if it is due to a relaxation of selective constraint. To distinguish between these two possibilities, we surveyed DNA sequence polymorphism in 91 Drosophil...
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ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 1987
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.27.287