Abstract

Abstract The Finnish oat cultivars were identified by homogeneous and gradient SDS-PAGE (sodium dodecyl sulfate polyacrylamide gel electrophoresis on the basis of 7–14 avenin bands. REM (relative electrophoretic mobility) values of the avenins among the Finnish oat cultivars were determined by gradient SDS-PAGE to calculate the PH% (pattern homology percentage). Most of the cultivars (58%) had a PH% of over 75%, which indicates quite a. high degree of similarity between the cultivars. Homogeneous SDS-PAGE was used in addition to gradient SDS-PAGE to compare the electrophoregrams of the cultivars by the gel separation systems. Resolution of the avenins was better by homogeneous than by gradient SDS-PAGE. Ten oat cultivars out of the 28 tested could be identified individually in homogeneous SDS-PAGE, as opposed to three which were identifiable by gradient SDS-PAGE.

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