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Rare sex or out of reach equilibrium? The dynamics of F-IS in partially clonal organisms ArchiMer
Reichel, Katja; Masson, Jean-pierre; Malrieu, Florent; Arnaud-haond, Sophie; Stoeckel, Solenn.
Background: Partially clonal organisms are very common in nature, yet the influence of partial asexuality on the temporal dynamics of genetic diversity remains poorly understood. Mathematical models accounting for clonality predict deviations only for extremely rare sex and only towards mean inbreeding coefficient (F-IS) over bar < 0. Yet in partially clonal species, both F-IS < 0 and F-IS > 0 are frequently observed also in populations where there is evidence for a significant amount of sexual reproduction. Here, we studied the joint effects of partial clonality, mutation and genetic drift with a state-and-time discrete Markov chain model to describe the dynamics of F-IS over time under increasing rates of clonality. Results: Results of the...
Tipo: Text Palavras-chave: Partial asexuality; Parthenogenesis; Mating system; Inbreeding coefficient; Heterozygote excess; Genetic diversity.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00344/45474/45019.pdf
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