Gene loss and evolutionary rates following whole-genome duplication in teleost fishes.

Détails

ID Serval
serval:BIB_90789EA4F9CB
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Gene loss and evolutionary rates following whole-genome duplication in teleost fishes.
Périodique
Molecular Biology and Evolution
Auteur(s)
Brunet F.G., Roest Crollius H., Paris M., Aury J.M., Gibert P., Jaillon O., Laudet V., Robinson-Rechavi M.
ISSN
0737-4038 (Print)
ISSN-L
0737-4038
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
23
Numéro
9
Pages
1808-1816
Langue
anglais
Résumé
Teleost fishes provide the first unambiguous support for ancient whole-genome duplication in an animal lineage. Studies in yeast or plants have shown that the effects of such duplications can be mediated by a complex pattern of gene retention and changes in evolutionary pressure. To explore such patterns in fishes, we have determined by phylogenetic analysis the evolutionary origin of 675 Tetraodon duplicated genes assigned to chromosomes, using additional data from other species of actinopterygian fishes. The subset of genes, which was retained in double after the genome duplication, is enriched in development, signaling, behavior, and regulation functional categories. The evolutionary rate of duplicate fish genes appears to be determined by 3 forces: 1) fish proteins evolve faster than mammalian orthologs; 2) the genes kept in double after genome duplication represent the subset under strongest purifying selection; and 3) following duplication, there is an asymmetric acceleration of evolutionary rate in one of the paralogs. These results show that similar mechanisms are at work in fishes as in yeast or plants and provide a framework for future investigation of the consequences of duplication in fishes and other animals.
Mots-clé
Animals, Chromosomes, Evolution, Molecular, Fish Proteins/genetics, Fishes/genetics, Gene Deletion, Gene Duplication, Genome, Phylogeny, Polyploidy
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/01/2008 18:47
Dernière modification de la notice
08/05/2019 21:59
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