Fig. 1.

A high-density genetic map of the region harboring QPm.tut-4A. a Marker segregation displayed by 8519 progeny bred from the CS × 8.1 mapping population (including the F₂ generation described at Jakobson et al. 2012) defines the genetic length of the QPm.tut-4A segment (marked in red) to 0.012 cM, lying within a 0.18 cM window within chromosome 4AL. The flanking markers used for identification of recombination events within the segment are highlighted in yellow. b The level of mapping resolution achieved was enhanced through the use of the ph1 mapping population, which provided an additional 30 new recombination events, thereby splitting the QPm.tut-4A region into eight subregions