Figure 2. Haplotypes formed by C4 structures and SNPs.
SNP haplotype(s) on which common C4 structures were present. Each thin horizontal line represents the series of SNP alleles (haplotype) along a 250-kilobase chromosomal segment. Each column represents a SNP; gray and black indicate which allele is present on each haplotype. The SNP haplotypes are grouped into 13 sets of haplotypes associating with each of the four most common C4 structures. Three C4 structures (AL-BS, AL-BL, and AL-AL) each segregated on multiple SNP haplotypes (numbered at right).