Reduced purifying selection prevails over positive selection in human copy number variant evolution
نویسندگان
چکیده
منابع مشابه
Reduced purifying selection prevails over positive selection in human copy number variant evolution.
Copy number variation is a dominant contributor to genomic variation and may frequently underlie an individual's variable susceptibilities to disease. Here we question our previous proposition that copy number variants (CNVs) are often retained in the human population because of their adaptive benefit. We show that genic biases of CNVs are best explained, not by positive selection, but by reduc...
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Protein repeats are considered hotspots of protein evolution, associated with acquisition of new functions and novel phenotypic traits, including disease. Paradoxically, however, repeats are often strongly conserved through long spans of evolution. To resolve this conundrum, it is necessary to directly compare paralogous (horizontal) evolution of repeats within proteins with their orthologous (...
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ژورنال
عنوان ژورنال: Genome Research
سال: 2008
ISSN: 1088-9051
DOI: 10.1101/gr.077289.108