Detection of lineage-specific evolutionary changes among primate species

dc.contributor.authorPertea, Mihaela
dc.contributor.authorPertea, Geo M
dc.contributor.authorSalzberg, Steven L
dc.date.accessioned2013-01-10T20:40:31Z
dc.date.available2013-01-10T20:40:31Z
dc.date.issued2011-07-04
dc.description.abstractBackground: Comparison of the human genome with other primates offers the opportunity to detect evolutionary events that created the diverse phenotypes among the primate species. Because the primate genomes are highly similar to one another, methods developed for analysis of more divergent species do not always detect signs of evolutionary selection. Results: We have developed a new method, called DivE, specifically designed to find regions that have evolved either more or less rapidly than expected, for any clade within a set of very closely related species. Unlike some previous methods, DivE does not rely on rates of synonymous and nonsynonymous substitution, which enables it to detect evolutionary events in noncoding regions. We demonstrate using simulated data that DivE compares favorably to alternative methods, and we then apply DivE to the ENCODE regions in 14 primate species. We identify thousands of regions in these primates, ranging from 50 to >10000 bp in length, that appear to have experienced either constrained or accelerated rates of evolution. In particular, we detected 4942 regions that have potentially undergone positive selection in one or more primate species. Most of these regions occur outside of protein-coding genes, although we identified 20 proteins that have experienced positive selection. Conclusions: DivE provides an easy-to-use method to predict both positive and negative selection in noncoding DNA, that is particularly well-suited to detecting lineage-specific selection in large genomes.en_US
dc.description.urihttps://doi.org/10.1186/1471-2105-12-274
dc.identifier.citationPertea, M., Pertea, G.M. & Salzberg, S.L. Detection of lineage-specific evolutionary changes among primate species. BMC Bioinformatics 12, 274 (2011).en_US
dc.identifier.urihttp://hdl.handle.net/1903/13351
dc.language.isoen_USen_US
dc.relation.isAvailableAtCell Biology & Molecular Geneticsen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtCollege of Computer, Mathematical & Natural Sciencesen_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.subjectevolutionary changesen_US
dc.subjectgenomeen_US
dc.subjectprimatesen_US
dc.titleDetection of lineage-specific evolutionary changes among primate speciesen_US
dc.typeArticleen_US

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