Variability of the Seed Globulins of Winged Bean, Psophocarpus tetragonolobus (L.) DC

Abstract

Extracts from the seeds of 80 pure lines of P. tetragonolobus found in Papua New Guinea have been examined by polyacrylamide gel electrophoresis, There was little difference between the electrophoretic patterns except for variation in the proportion of one polypeptide. In its unreduced form, this polypeptide is the single subunit of psophocarpin A. A number of these genotypes have been studied more closely to obtain information regarding their protein content and the influence of extraction conditions on the protein pattern observed.