Quantitative trait loci for head-bug resistance in sorghum

Deu Monique, Ratnadass Alain, Hamada Mohamed Ag, Noyer Jean-Louis, Diabaté M., Chantereau Jacques. 2005. Quantitative trait loci for head-bug resistance in sorghum. African Journal of Biotechnology, 4 (3) : pp. 247-250.

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Abstract : QTLs were mapped in F2 progeny derived from a cross between the head-bug resistant sorghum cultivar Malisor 84-7 and susceptible S 34. The phenotypic evaluation was conducted in Mali. The mapped population consisted of 217 F2 plants, with 345 homologous and heterologous RFLP probes and 49 microsatellite markers tested. Eighty-one RFLP markers revealed polymorphism between the two parents, and 14 microsatellite markers gave usable amplification products. A genetic map including 92 loci distributed over 13 linkage groups, and covering a total distance of 1160 cM was built. Three significant and seven putative QTLs were detected and placed on the map. (Résumé d'auteur)

Mots-clés Agrovoc : Sorghum bicolor, Résistance génétique, Marqueur génétique, Microsatellite, Carte génétique, Locus des caractères quantitatifs, RFLP

Mots-clés géographiques Agrovoc : Mali, France

Mots-clés complémentaires : Eurystylus oldi, QTL

Classification Agris : F30 - Plant genetics and breeding
H10 - Pests of plants

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Deu Monique, CIRAD-CA-CALIM (FRA)
  • Ratnadass Alain, CIRAD-CA-CALIM (MDG) ORCID: 0000-0002-8873-5671
  • Hamada Mohamed Ag, ICRISAT (MLI)
  • Noyer Jean-Louis, CIRAD-AMIS-BIOTROP (FRA) ORCID: 0000-0002-7389-5621
  • Diabaté M., ICRISAT (MLI)
  • Chantereau Jacques, CIRAD-CA-CALIM (FRA)

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