Comparison of grain protein profiles of Brazilian cowpea (Vigna unguiculata) cultivars based on principal component analysis

This study aims to compare the grain protein profile of four Brazilian cowpea cultivars (BRS Aracê, BRS Itaim, BRS Pajeú, and BRS Xiquexique) by two-dimensional electrophoresis (2-DE) and principal component analysis (PCA). 2-DE efficiently separate cowpea protein profiles, showing high homogeneity among the four cultivars. In addition, the principal component analysis indicated that there is a difference in abundance of proteins among the cultivars. The cultivars BRS Aracê and BRS Xiquexique, both biofortified in iron and zinc, were separated from the cultivars BRS Itaim and BRS Pajeú. These results demonstrate that protein profiles can be used to discriminate cowpea varieties Made available in DSpace on 2022-08-03T13:20:20Z (GMT). No. of bitstreams: 1 ComparisonGrainProteinProfilesBrazilianCowpeaFPPN4.2022.pdf: 3894575 bytes, checksum: 2f6092e8fa5abf834b03478bb0df1c54 (MD5) Previous issue date: 2022