Comparison of the genetic recombination rates on ChrIa vs. ChrV. Progeny from the genetic cross between VAND SNFr and ME49 FUDRr were genotyped by whole genome sequencing to identify single nucleotide variants. Allelic patterns of the parental strains and 24 recombinant progeny are demonstrated at each SNP locus by solid boxes (red box, ME49 ChrIa and ChrIV, respectively; however, only SNPs that define crossovers in the recombinant progeny are shown here. Conventional single crossovers and short, double crossovers are seen by the alternating color block depicting genotype. Grey boxes indicate missing data. Profiles of the apicoplast genome are shown to the right.