Distribution of crossover (CO) and non-crossover (NCO) recombination events in progeny clones MugugaMarikebuni (MM) and MugugaUganda (MU). Chromosomes 1 to 4 are lined up from top to bottom. The length of each chromosome was scaled to the real genomic size at the ratio of 1 pixel per 1000 nucleotides. In tracks of CO events (labelled as “MM_COs” and “MU_COs”), blue bars represented sequences originated from Muguga, red bars Marikebuni or Uganda. Each colour transition corresponds to a CO breakpoint. Empty regions represent unmapped regions, regions without SNP markers, or regions with such frequent allele changes that their origins could not be clearly defined (such as regions of complex gene conversions). The “NCOs” tracks (labelled as “MM_NCOs” and “MU_NCOs”) show positions of NCO events, with gene conversions to Muguga alleles in blue and to non-Muguga alleles in red. In the track labelled as “Loci”, the known recombination hot spots and cold spots  are highlighted as magenta bars and green bars, respectively. Positions of the 27 loci encoding products previously known as immune-relevant  are shown as orange bars.