Mapping of angular leaf spot resistance QTL in common bean (Phaseolus vulgaris L.) under different environments.

ABSTRACT:

Background

Common bean (Phaseolus vulgaris L.) is the most important grain legume for human diet worldwide and the angular leaf spot (ALS) is one of the most devastating diseases of this crop, leading to yield losses as high as 80%. In an attempt to breed resistant cultivars, it is important to first understand the inheritance mode of resistance and to develop tools that could be used in assisted breeding. Therefore, the aim of this study was to identify quantitative trait loci (QTL) controlling resistance to ALS under natural infection conditions in the field and under inoculated conditions in the greenhouse.

Results

QTL analyses were made using phenotypic data from 346 recombinant inbreed lines from the IAC-UNAxCAL 143 cross, gathered in three experiments, two of which wer

SUBMITTER: Oblessuc PR 

PROVIDER: S-EPMC3464175 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature