Figure 6.
Polymorphism among 9DC alleles and their relation with Cf-9 and Hcr9-9D. Accessions from which 9DC or Cf-9 have been sequenced are indicated on the right. Solid lines represent DNA sequences of the 9DC alleles. Thick lines indicate ORFs. Open squares at positions x and y indicate the nucleotides conserved among 9DC genes (see also Fig. 4A). Circles at positions 1, 2, and 3 indicate SNPs (G244A, C713T, and T2304C, respectively) between 9DC ORFs, which differentiate these ORFs into five distinct allelic classes. Alleles I–IV are related to each other by the accumulation of point mutations (vertical connections). Allele V likely resulted from recombination between two different 9DC alleles. Cf-9 contains a 3′ half that is identical to that of alleles I–III, except for site y. Hcr9-9D contains a 5′ half that is identical to that of allele I, except for site x.