Since the identification of an insertion element (Tgml) in the lectin gene (Lel) of lectin-negative soybean lines (Goldberg et al., 1983; Vodkin et al., 1983), this laboratory has been interested in identifying and characterizing active transposable element systems of soybean. Tgml exhibits the structural features of known transposable element and appears to be related to the En/Spm elements of corn and Taml of snapdragon (Rhodes and Vodkin, 1985). However, there is no evidence for mobility of Tgml and the Le-phenotype is stably inherited.