Genetic linkage map and LOD profiles of multiple QTL model mapping on linkage group (LG) 1 for resistance to crown rust assessed in the TC1*SB2 (A) and the Xtg-ART mapping population (B). For QTL analysis, the MapQTL 6 software  and 281 and 297 individuals of TC1*SB2 and Xtg-ART, respectively, were used to investigate crown rust related traits reported earlier [23,25]. The horizontal line indicates the LG-specific significance threshold. Cofactors are indicated and designate markers which absorb the genetic effects of their nearby QTL and function as a genetic background control.
Studer et al. BMC Plant Biology 2010 10:177 doi:10.1186/1471-2229-10-177