Summary of QTLs identified in the B73 × Gaspé Flint Introgression Library (IL), BC
populations. QTLs are identified with the name of the traits (Table 1) and the population and represented as vertical bars (white, hatched or black, for BC1, F2 or IL, respectively) on the left of chromosomes. Large and thin bars indicate the 1-LOD and 2-LOD drop supporting intervals for the BC1 and the F2 QTL analyses, while for the IL QTLs the solid black bar indicates the region of Gaspé Flint introgression with significant phenotypic effect. Grey portions within chromosome bars indicate segments for which four or more SSR markers resulted monomorphic between B73 and Gaspé Flint. Chromosome representation includes polymorphic SSR markers utilized for IL production and the non-polymorphic SSRs delimiting the monomorphic regions between B73 and Gaspé Flint. Additionally, telomeres (based on the 'Genetic 2008' maize reference map available at http://www.maizegdb.org) are shown in order to provide indication of genome coverage.