[Cloning and evolutionary analysis of homologous sequences of SAMDC gene in Cruciferae].

S-adenosylmethionine decarboxylase activity (SAMDC) is a key enzyme involved in biosynthesis of the polyamines, viz. spermidine and spermine. In the present study, SAMDC gene analogues from 14 species of 6 genera in Cruciferae were obtained by PCR strategy using specific primers designed from conserved regions of SAMDC gene reported in the GenBank.