Figure 2From: An SNP-based second-generation genetic map of Daphnia magna and its application to QTL analysis of phenotypic traitsHeat map of pair wise recombination fractions (above diagonal) and LOD scores (below diagonal) for all marker combinations. Red indicates high values, and blue indicates low values. Each linkage group has one region or, in the case of group 10, two regions that show strong clustering of SNP markers, indicated by low recombination values and high lod scores. This likely reflects the positions of centromeres, which are known to reduce recombination in their surrounding areas.Back to article page