PETIT, Remy; DEGUILLOUX, Marie-France; CHAT, Joëlle; GRIVET, Delphine; GARNIER‐GÉRÉ, Pauline; VENDRAMIN, Giovanni G.

doi:10.1111/j.1365-294X.2005.02446.x

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PETIT, Remy
Biodiversité, Gènes et Ecosystèmes [BioGeCo]

DEGUILLOUX, Marie-France
Biodiversité, Gènes et Ecosystèmes [BioGeCo]
Université Sciences et Technologies - Bordeaux 1 [UB]

CHAT, Joëlle
Ecologie Comportementale et Biologie des Populations de Poissons [ECOBIOP]

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Article de revue

Ce document a été publié dans

Molecular Ecology. 2005, vol. 14, n° 3, p. 885-890

Wiley

Résumé en anglais

Mutation rates at microsatellites tend to increase with the number of repeats of the motif, leading to higher levels of polymorphism at long microsatellites. To standardize levels of diversity when microsatellites differ in size, we investigate the relationship between tract length and variation and provide a formula to adjust allelic richness to a fixed mean number of repeats in the specific case of chloroplast microsatellites. A comparison between 39 loci from eight species of conifers (where chloroplast DNA is paternally inherited) and 64 loci from 12 species of angiosperms (where chloroplast DNA is generally predominantly maternally inherited) indicates that the greater allelic richness found in conifers remains significant after controlling for number of repeats. The approach stresses the advantage of reporting variation in number of repeats instead of relative fragment sizes< Réduire

Mots clés

ASCERTAINMENT BIAS

ADN CHLOROPLASTIQUE

Mots clés en anglais

ALLELIC RICHNESS

GENETIC DIVERSITY

RAREFACTION

SLIPPAGE

STANDARDIZATION