Quantitative trait loci mapping of leaf rust resistance in tetraploid alfalfa

This study suggests that leaf rust resistance in alfalfa is most likely incomplete and has polygenic inheritance. Comparative genome analysis of QTL regions using sequences of significant SNPs revealed homology to M. truncatula sequences that were previously reported for their role in plant defense mechanisms. Validation of the QTLs in different genetic backgrounds as well as fine mapping of the QTL regions would be the next step of this research. The markers presented in this study would be valuable resources for alfalfa genetic improvement via marker-assisted selection (MAS).
Source: Physiological and Molecular Plant Pathology - Category: Molecular Biology Source Type: research