The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.

Researchers have long been enthralled with the idea that gene duplication can generate novel functions, crediting this process with great evolutionary importance. Empirical data shows that whole-genome duplications (WGDs) are more likely to be retained than small-scale duplications (SSDs), though th...

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Main Authors: Mario A Fares, Orla M Keane, Christina Toft, Lorenzo Carretero-Paulet, Gary W Jones
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC3536658?pdf=render
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author Mario A Fares
Orla M Keane
Christina Toft
Lorenzo Carretero-Paulet
Gary W Jones
author_facet Mario A Fares
Orla M Keane
Christina Toft
Lorenzo Carretero-Paulet
Gary W Jones
author_sort Mario A Fares
collection DOAJ
description Researchers have long been enthralled with the idea that gene duplication can generate novel functions, crediting this process with great evolutionary importance. Empirical data shows that whole-genome duplications (WGDs) are more likely to be retained than small-scale duplications (SSDs), though their relative contribution to the functional fate of duplicates remains unexplored. Using the map of genetic interactions and the re-sequencing of 27 Saccharomyces cerevisiae genomes evolving for 2,200 generations we show that SSD-duplicates lead to neo-functionalization while WGD-duplicates partition ancestral functions. This conclusion is supported by: (a) SSD-duplicates establish more genetic interactions than singletons and WGD-duplicates; (b) SSD-duplicates copies share more interaction-partners than WGD-duplicates copies; (c) WGD-duplicates interaction partners are more functionally related than SSD-duplicates partners; (d) SSD-duplicates gene copies are more functionally divergent from one another, while keeping more overlapping functions, and diverge in their sub-cellular locations more than WGD-duplicates copies; and (e) SSD-duplicates complement their functions to a greater extent than WGD-duplicates. We propose a novel model that uncovers the complexity of evolution after gene duplication.
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spelling doaj.art-43f8055789d343f486a21c0b1139eecb2022-12-21T17:43:28ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042013-01-0191e100317610.1371/journal.pgen.1003176The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.Mario A FaresOrla M KeaneChristina ToftLorenzo Carretero-PauletGary W JonesResearchers have long been enthralled with the idea that gene duplication can generate novel functions, crediting this process with great evolutionary importance. Empirical data shows that whole-genome duplications (WGDs) are more likely to be retained than small-scale duplications (SSDs), though their relative contribution to the functional fate of duplicates remains unexplored. Using the map of genetic interactions and the re-sequencing of 27 Saccharomyces cerevisiae genomes evolving for 2,200 generations we show that SSD-duplicates lead to neo-functionalization while WGD-duplicates partition ancestral functions. This conclusion is supported by: (a) SSD-duplicates establish more genetic interactions than singletons and WGD-duplicates; (b) SSD-duplicates copies share more interaction-partners than WGD-duplicates copies; (c) WGD-duplicates interaction partners are more functionally related than SSD-duplicates partners; (d) SSD-duplicates gene copies are more functionally divergent from one another, while keeping more overlapping functions, and diverge in their sub-cellular locations more than WGD-duplicates copies; and (e) SSD-duplicates complement their functions to a greater extent than WGD-duplicates. We propose a novel model that uncovers the complexity of evolution after gene duplication.http://europepmc.org/articles/PMC3536658?pdf=render
spellingShingle Mario A Fares
Orla M Keane
Christina Toft
Lorenzo Carretero-Paulet
Gary W Jones
The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
PLoS Genetics
title The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
title_full The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
title_fullStr The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
title_full_unstemmed The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
title_short The roles of whole-genome and small-scale duplications in the functional specialization of Saccharomyces cerevisiae genes.
title_sort roles of whole genome and small scale duplications in the functional specialization of saccharomyces cerevisiae genes
url http://europepmc.org/articles/PMC3536658?pdf=render
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