Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (14): 11-15.doi: 10.11924/j.issn.1000-6850.casb19020037

Special Issue: 小麦

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49 Wheat Strains in Shanxi: High-Molecular-Weight Glutenin Subunits (HMW-GS) Composition and Quality Analysis

Wang Qian, Ren Wenbin, Qiu Yuliang, Xu Qi, Xie Sangang()   

  1. Cotton Research Institute, Shanxi Academy of Agricultural Sciences, Yuncheng Shanxi 044000
  • Received:2019-02-21 Revised:2019-10-11 Online:2020-05-15 Published:2020-05-20
  • Contact: Xie Sangang E-mail:ycxsg@163.com

Abstract:

To study the quality of wheat strains during breeding process, we analyzed the HMW-GS composition of 49 wheat strains by using SDS-PAGE technique. The results showed that: 8 HMW-GS alleles and 11 subunits combination were detected; 2 types of subunits were on locus Glu-A1, subunit 1 (83.67%) was the major subunit; 4 types of subunits were on locus Glu-B1, subunit 14+15 (42.86%) was the major subunit; subunit 2+12 (71.43%) and 5+10 (28.57%) were detected on locus Glu-D1; we determined the quality of the 49 wheat strains and conducted the correlation analysis between the quality and the subunits; the determination result of subunit 1 on locus Glu-A1 was higher than that of subunit Null; on locus Glu-D1, the quality of subunit 5+10 was higher than that of subunit 2+12; on locus Glu-B1, there were significant differences between the 4 types of subunits in qualities; subunit 7+8 had the highest contribution to the protein content, bulk density and wet gluten content; subunit 17+18 had the highest contribution to Zeleny sedimentation and maximum anti-extension resistance; subunit 7+9 had the longest stability time.

Key words: wheat, HMW-GS, quality, protein content, bulk density, stability time

CLC Number: