Introgressing resistance to Fusarium root rot in selected farmer preferred Andean bean genotypes from Meso-American line and mapping of associated resistance quantitative trait loci

Abstract: 
Two populations of beans (Phaseolus vulgaris) from K20 x MLB-49-89A and K132 x MLB-49-89A were assessed for resistance to Fusarium solani f.sp. phaseoli. Additionally, 35 SSR markers were screened for polymorphisism in the parents. The results showed that improvement of Andean varieties for resistance to Fusarium root rot was possible using American line MLB-49-89A. The SSR study identified a major QTL for resistance to Fusarium solani f.sp. phaseoli.
Deux populations des haricots (Phaseolus vulgaris) de K20 x MLB-49-89A et K132 x MLB-49-89A ont été évaluées pour la résistance à Fusarium solani f.sp. phaseoli. En plus, 35 marqueurs de SSR ont été examinés pour le polymorphisme dans les parents. Les résultats ont prouvé que l’amélioration des variétés andines pour la résistance à la putréfaction de racine de Fusarium était possible en utilisant la Ligne Américaine MLB-49-89A. L’étude de SSR a identifié un QTL important pour la résistance à Fusarium solani f.sp. phaseoli.
Language: 
Date of publication: 
2010
Country: 
Region Focus: 
Southern Africa
Collection: 
RUFORUM Conferences and Workshops
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
Publisher: 
Extent: 
495-498
Notes: 

About the RUFORUM 2010 Biennal Conference
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholders in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme of Plant Breeding"