Figure 2

Duplications and deletions of I2 homologues. Shaded region represents homologous sequences between two species, and the percentage refers to nucleotide identity between the two sequences. A. I2 homologue (black box) is present in tomato but absent in potato and pepper, suggesting that the I2 homologue at sub-locus 3 in tomato was gained after speciation. B. I2 homologues (black vertical lines) are present in tomato and pepper but absent in potato, suggesting that the I2 homologue at sub-locus 4 in potato were lost after speciation.