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The population genetics of clonal and partially clonal diploids.

Détails de la publication Détails dans Serval
ID Serval serval:BIB_821A9BB4948D
Type de publication
Article: article d'un périodique ou d'un magazine.
Collection Publications
Fonds UNIL/CHUV
Auteur(s) Balloux F., Lehmann L., de Meeûs T.
Titre The population genetics of clonal and partially clonal diploids.
Périodique Genetics
Statut éditorial Publié
Année 2003
Peer-reviewed oui
Volume 164
Numéro 4
Pages 1635-1644
Langue anglais
Résumé The consequences of variable rates of clonal reproduction on the population genetics of neutral markers are explored in diploid organisms within a subdivided population (island model). We use both analytical and stochastic simulation approaches. High rates of clonal reproduction will positively affect heterozygosity. As a consequence, nearly twice as many alleles per locus can be maintained and population differentiation estimated as F(ST) value is strongly decreased in purely clonal populations as compared to purely sexual ones. With increasing clonal reproduction, effective population size first slowly increases and then points toward extreme values when the reproductive system tends toward strict clonality. This reflects the fact that polymorphism is protected within individuals due to fixed heterozygosity. Contrarily, genotypic diversity smoothly decreases with increasing rates of clonal reproduction. Asexual populations thus maintain higher genetic diversity at each single locus but a lower number of different genotypes. Mixed clonal/sexual reproduction is nearly indistinguishable from strict sexual reproduction as long as the proportion of clonal reproduction is not strongly predominant for all quantities investigated, except for genotypic diversities (both at individual loci and over multiple loci).
ISBN/ISSN 0016-6731 (Print)
ISSN-L 0016-6731
Mots-clé Alleles; Clone Cells; Computer Simulation; Diploidy; Genetic Markers; Genetic Variation; Genetics, Population; Heterozygote; Kinetics; Polymorphism, Genetic; Reproduction, Asexual; Stochastic Processes
URN urn:nbn:ch:serval-BIB_821A9BB4948D6
OAI oai:serval.unil.ch:BIB_821A9BB4948D
Référence externe Pubmed : 12930767
Référence externe Web of Science : 000185248000035
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Dernière modification 2012-12-03

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