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.

中文翻译：

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茄科植物叶片中的蔗糖转化酶抑制剂基因INH2同源基因的多态性和系统发育

摘要

在37个茄科中鉴定出编码液泡转化酶抑制剂的INH2同源基因，并评估了INH2多态性。在Petota和Lycopersicon片段中发现了INH2编码序列的显着水平的种间多态性，这与INH2基因进化过程中的高突变率相对应，并推测与现代植物多样性有关。结构分析表明，INH2蛋白中存在保守的基序和氨基酸残基，非跨膜信号肽和PMEI域。显示了应用INH2序列评估lan科和科间茄科系统发育的可能性。