Genomic exploration of the hemiascomycetous yeasts: 20. Evolution of gene redundancy compared to Saccharomyces cerevisiae.
FEBS Lett
; 487(1): 122-33, 2000 Dec 22.
Article
en En
| MEDLINE
| ID: mdl-11152895
ABSTRACT
We have evaluated the degree of gene redundancy in the nuclear genomes of 13 hemiascomycetous yeast species. Saccharomyces cerevisiae singletons and gene families appear generally conserved in these species as singletons and families of similar size, respectively. Variations of the number of homologues with respect to that expected affect from 7 to less than 24% of each genome. Since S. cerevisiae homologues represent the majority of the genes identified in the genomes studied, the overall degree of gene redundancy seems conserved across all species. This is best explained by a dynamic equilibrium resulting from numerous events of gene duplication and deletion rather than by a massive duplication event occurring in some lineages and not in others.
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Banco de datos:
MEDLINE
Asunto principal:
Ascomicetos
/
Evolución Molecular
/
Genes Fúngicos
Idioma:
En
Revista:
FEBS Lett
Año:
2000
Tipo del documento:
Article
País de afiliación:
Francia