Study of glutenin subunits in some wheat landraces from northwest of Iran by SDS-PAGE technique

Abstract

Genetic variations of cultivars are very interesting in reducing genetic vulnerability and lead to stable control of production. This study was conducted to determine the variation of endosperm protein subunits of 42 wheat landraces from northwest of Iran. Results showed the existence of variation at HMW-Glutenins, LMW-Glutenins and ?-gliadins regions. Frequency of landraces with 2 + 12 subunits was more than landraces with 5 + 10. In addition, new protein subunits appeared at HMW-GS region, between 1 and 2 bands region (related to Glu-A1) and 2 and 3 bands region (related to Glu-D1). Tow-way analysis of protein content variance also showed the significant differences between experimental landraces.