Abstract
INH2 homologous genes encoding vacuolar invertase inhibitor were identified in 37 Solanaceae species, and the INH2 polymorphism was evaluated. A significant level of interspecific polymorphism of the INH2 coding sequence was found within the Petota and Lycopersicon sections, which corresponds to the high mutation rate during the evolution of the INH2 genes and presumably associated with the modern plant diversity. Structural analysis revealed the presence of conserved motifs and amino acid residues, non-transmembrane signal peptide and the PMEI domain in the INH2 proteins. The possibility of applying the INH2 sequence to assess the inter-genera and inter-section Solanaceae phylogeny was shown.
Published Version
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