Consulta: subjectFacets:"Nucleotide"
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Data/hora: 03/06/2024 18:18:03

A high load of non-neutral amino-acid polymorphisms explains high protein diversity despite moderate effective population size in a marine bivalve with sweepstakes reproduction
Provedor de dados: 5
Autores: Harrang, Estelle; Lapegue, Sylvie; Morga, Benjamin; Bierne, Nicolas.
Marine bivalves show among the greatest allozyme diversity ever reported in Eukaryotes, putting them historically at the heart of the neutralist-selectionist controversy on the maintenance of genetic variation. Although it is now acknowledged that this high diversity is most probably a simple consequence of a large population size, convincing support for this explanation would require a rigorous assessment of the silent nucleotide diversity in natural populations of marine bivalves, which has not yet been done. This study investigated DNA sequence polymorphism in a set of 37 nuclear loci in wild samples of the flat oyster Ostrea edulis. Silent diversity was found to be only moderate (0.7%), and there was no departure from demographic equilibrium under the...
Tipo: Text
Palavras-chave: Nucleotide; Polymorphism; Marine bivalve; Deleterious; Mutations; Genetic load; Ostrea edulis.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23610/21444.pdf