Are microsatellite mutation rates higher in Orthopterans? : PS2M115 Physiology

Chapuis Marie-Pierre, Plantamp Christophe, Streiff Réjane, Blondin Laurence, Sword Gregory A.. 2012. Are microsatellite mutation rates higher in Orthopterans? : PS2M115 Physiology. In : XXIV International Congress of Entomology (ICE 2012), Daegu, Korea, August 19-25, 2012. s.l. : s.n., Résumé, 1 p. International Congress of Entomology. 24, Daegu, Corée du Sud, 19 Août 2012/25 Août 2012.

Résumé : Much remains to be learned about the mutational processes governing the evolution of microsatellite repeat regions. Empirical data on microsatellite mutation rates in insect taxa is notably lacking. Here we first analyzed microsatellite within-population diversity compiled from the literature. This survey of 210 insect species from six major orders revealed that within Orthopterans levels of genetic diversity were ~20% higher and microsatellite repeat arrays were longer than in any other group. Because of the mutation dependence on repeat length, this result suggests a higher microsatellite loci mutation rate in the Orthoptera. We then tested empirically this hypothesis in the Desert locust, Schistocerca gregaria, by estimating germline mutation rates at 10 microsatellite loci from pedigree data.

Classification Agris : H10 - Ravageurs des plantes

Auteurs et affiliations

• Chapuis Marie-Pierre, CIRAD-BIOS-UPR Bioagresseurs (FRA)
• Plantamp Christophe, CIRAD-BIOS-UPR Bioagresseurs de pérennes (FRA)
• Streiff Réjane, INRA (FRA)
• Blondin Laurence, CIRAD-BIOS-UPR Bioagresseurs (FRA)
• Sword Gregory A., Texas A & M University (USA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/568183/)

Métriques

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