QTL Analysis of Fusarium Root Rot Resistance in an Andean × Middle American Common Bean RIL Population.

Quantitative trait locus (QTL) mapping was conducted on a map developed with 822 polymorphic single nucleotide polymorphism markers. Two QTLs associated with disease severity score in the greenhouse and field colocalized on chromosome Pv02 (R² = 0.09 and 0.1, respectively). Other QTLs associated with root- shoot biomass, taproot diameter, lodging, and seed weight were also identified across nine chromosomes. Root and shoot weight QTLs from field and greenhouse screens also colocalized on Pv07 and Pv11. The FRR -related QTLs; identified in this study, especially on Pv02, are good candidates for marker-assisted selection. [ABSTRACT FROM AUTHOR]