Genetic model for the function of the Rhg1/Rfs2 locus in association with other known resistance loci. Black arrows show positive interactions, blue arrows show inhibitions. In this model four phenotypic events are controlled by the 3 genes at Rhg1/Rfs2 and four unlinked genes Rhg2-4 and Rzd1 (sup-Rhg1/Rfs2). Root growth inhibition occurs despite suppression of the RLK by Rzd1. Pleiotropy or close linkage between loci underlying resistance was found at Rhg1/Rfs2 (this work) and Rhg5/Rfs3 [8,17].
Srour et al. BMC Genomics 2012 13:368 doi:10.1186/1471-2164-13-368