Comparative population genomics in animals uncovers the determinants of genetic diversity.

Détails

ID Serval
serval:BIB_2CE1645995B0
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Comparative population genomics in animals uncovers the determinants of genetic diversity.
Périodique
Nature
Auteur(s)
Romiguier J., Gayral P., Ballenghien M., Bernard A., Cahais V., Chenuil A., Chiari Y., Dernat R., Duret L., Faivre N., Loire E., Lourenco J.M., Nabholz B., Roux C., Tsagkogeorga G., Weber A.A., Weinert L.A., Belkhir K., Bierne N., Glémin S., Galtier N.
ISSN
1476-4687 (Electronic)
ISSN-L
0028-0836
Statut éditorial
Publié
Date de publication
2014
Volume
515
Numéro
7526
Pages
261-263
Langue
anglais
Résumé
Genetic diversity is the amount of variation observed between DNA sequences from distinct individuals of a given species. This pivotal concept of population genetics has implications for species health, domestication, management and conservation. Levels of genetic diversity seem to vary greatly in natural populations and species, but the determinants of this variation, and particularly the relative influences of species biology and ecology versus population history, are still largely mysterious. Here we show that the diversity of a species is predictable, and is determined in the first place by its ecological strategy. We investigated the genome-wide diversity of 76 non-model animal species by sequencing the transcriptome of two to ten individuals in each species. The distribution of genetic diversity between species revealed no detectable influence of geographic range or invasive status but was accurately predicted by key species traits related to parental investment: long-lived or low-fecundity species with brooding ability were genetically less diverse than short-lived or highly fecund ones. Our analysis demonstrates the influence of long-term life-history strategies on species response to short-term environmental perturbations, a result with immediate implications for conservation policies.
Pubmed
Web of science
Création de la notice
21/11/2014 18:52
Dernière modification de la notice
20/08/2019 14:11
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