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- Background_selection abstract "Background selection describes the loss of genetic diversity at a non-deleterious locus due to purifying selection against linked deleterious alleles. It is one form of linked selection, where the maintenance or removal of a gene from a population is dependent upon the genes in its linkage group. The name emphasizes the fact that the genetic background, or environment, of a neutral mutation has a significant impact on whether it will be preserved (genetic hitchhiking) or purged (background selection) from a population. In some cases, the term background selection is used broadly to refer to all forms of linked selection, but most often it is used only when neutral variation is reduced due to negative selection against deleterious mutations. Background selection and all forms of linked selection contradict the assumption of the Neutral theory of molecular evolution that the fixation or loss of neutral alleles is entirely stochastic, the result of genetic drift. Instead, these models predict that neutral variation is correlated with the selective pressures acting on linked non-neutral genes, that neutral traits are not necessarily oblivious to selection. Because they segregate together, non-neutral mutations linked to neutral polymorphisms result in decreased levels of genetic variation relative to predictions of neutral evolution.".
- Background_selection wikiPageID "8054792".
- Background_selection wikiPageRevisionID "602698288".
- Background_selection hasPhotoCollection Background_selection.
- Background_selection subject Category:Biodiversity.
- Background_selection comment "Background selection describes the loss of genetic diversity at a non-deleterious locus due to purifying selection against linked deleterious alleles. It is one form of linked selection, where the maintenance or removal of a gene from a population is dependent upon the genes in its linkage group.".
- Background_selection label "Background selection".
- Background_selection sameAs m.026py2k.
- Background_selection sameAs Q4839657.
- Background_selection sameAs Q4839657.
- Background_selection wasDerivedFrom Background_selection?oldid=602698288.
- Background_selection isPrimaryTopicOf Background_selection.