Abstract:
In order to understand the genetic diversity of wheat germplasms in Ningxia,High-molecular-weight glutenin subunit(HMW-GS) composition of 33 spring wheat varieties were determined by sodium do-decylsulphate polyacrylamide gel electrophoresis(SDS-PAGE).The results revealed:Glu-A1 encoded four subunits of 1,1*,2*and null,Glu-B1 encoded five subunits of 7,6+8,7+8,7+9,17+18,Glu-D1 encoded two subunits of 2+12 and 5+10.The subunit with the highest frequency is 1(69.70%),7(36.360%),5+10(84.85%) in Glu-A1,Glu-B1 and Glu-D1 respectively.According to the standard grades of Payne,the most varieties Glu-1 quality scores was 6-10,average 8.42.Compared on HMW-GS composition of three-source spring wheat varieties,modern varieties had high frequencies of quality subunits Composition 1,7+8,5+10 and 1,7+9,5+10.
Key words:
Spring wheat,
HMW-GS,
SDS-PAGE
CLC Number:
ZHAO Hai-xia, REN Xian, WANG Yang, BEI Zhan-lin. Composition of High Molecular Weight Glutenin Subunits of Spring Wheat Varieties in Ningxia[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S1): 56-59. doi: 10.7668/hbnxb.2011.S1.012.