Genetic variation for seed storage protein composition in rapeseed ( <scp> <i>Brassica napus</i> </scp> ) and development of near‐infrared reflectance spectroscopy calibration equations

Rapeseed protein consists mainly of the seed storage cruciferin and napin. Cruciferin napin have different nutritional values techno-functional properties. Shifting cruciferin/napin ratio towards either more or could allow diversified applications. The objective this study was to investigate genetic variation in modern winter rapeseed cultivars. contents were analysed by SDS-PAGE. Genetic for both fractions highly significant. Heritabilities high ranging from 74% 82% Napin positively correlated with glucosinolate (rS = .52**) content .48**). Additional plant material much larger trait included develop near-infrared reflectance spectroscopical calibrations. Near-infrared spectroscopy (NIRS) equations showed explained variance cross independent validation around .9 all traits, indicating that NIRS can be applied routine screening material.