Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping

Despite its ubiquity among organisms, genetic redundancy is presumed to reduce total population fitness and is therefore unlikely to evolve. This study evaluates an evolutionary model with high-dimensional genotype–phenotype mapping (GPM) by applying a replica method to deal with quenched randomness...

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Main Authors: Nen Saito, Shuji Ishihara, Kunihiko Kaneko
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/6/063013
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author Nen Saito
Shuji Ishihara
Kunihiko Kaneko
author_facet Nen Saito
Shuji Ishihara
Kunihiko Kaneko
author_sort Nen Saito
collection DOAJ
description Despite its ubiquity among organisms, genetic redundancy is presumed to reduce total population fitness and is therefore unlikely to evolve. This study evaluates an evolutionary model with high-dimensional genotype–phenotype mapping (GPM) by applying a replica method to deal with quenched randomness. From the method, the dependence of fitness on genetic redundancy is analytically calculated. The results demonstrate that genetic redundancy can have higher population fitness under complex GPM, which tends to favor gene duplication in selection processes, further enhancing the potential for evolutionary innovations.
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spelling doaj.art-9e24c175d42d47248d39edc1b477bc9d2023-08-08T11:28:15ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116606301310.1088/1367-2630/16/6/063013Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mappingNen Saito0Shuji Ishihara1Kunihiko Kaneko2Graduate School of Arts and Sciences The University of Tokyo 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902, JapanGraduate School of Arts and Sciences The University of Tokyo 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902, JapanGraduate School of Arts and Sciences The University of Tokyo 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902, JapanDespite its ubiquity among organisms, genetic redundancy is presumed to reduce total population fitness and is therefore unlikely to evolve. This study evaluates an evolutionary model with high-dimensional genotype–phenotype mapping (GPM) by applying a replica method to deal with quenched randomness. From the method, the dependence of fitness on genetic redundancy is analytically calculated. The results demonstrate that genetic redundancy can have higher population fitness under complex GPM, which tends to favor gene duplication in selection processes, further enhancing the potential for evolutionary innovations.https://doi.org/10.1088/1367-2630/16/6/063013evolutionary modelspin glassfitness landscape89.75.-k87.23.Kg75.10.Nr
spellingShingle Nen Saito
Shuji Ishihara
Kunihiko Kaneko
Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
New Journal of Physics
evolutionary model
spin glass
fitness landscape
89.75.-k
87.23.Kg
75.10.Nr
title Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
title_full Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
title_fullStr Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
title_full_unstemmed Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
title_short Evolution of genetic redundancy: the relevance of complexity in genotype–phenotype mapping
title_sort evolution of genetic redundancy the relevance of complexity in genotype phenotype mapping
topic evolutionary model
spin glass
fitness landscape
89.75.-k
87.23.Kg
75.10.Nr
url https://doi.org/10.1088/1367-2630/16/6/063013
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