Effect of HMW and LMW glutenin subunits and presence of 1BL/1RS translocation on quality traits in spring wheat
Material type:
ArticlePublication details: 2005. Beijing, China : Institute of Crop Sciences,ISSN: - No (Revista en electrónico)
- 0496-3490
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | CIS-4677 (Browse shelf(Opens below)) | 1 | Available | 633965 |
Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: CIMMYT Staff Publications Collection Close shelf browser (Hides shelf browser)
in Chinese, English abstract
Peer-review: No - Open Access: Yes|http://211.155.251.148:8080/zwxb/EN/column/column81.shtml
The composition of high molecular weight glutenin subunits ( HMW2GS) and low molecular weight glutenin subunits (LMW2GS), and the presence or absence of 1BLΠ1RS translocation play an important role in determination of wheat quality1 Totally , 221 spring wheat cultivars and advanced lines were used to survey the composition of HMW2-GS and LMW2-GS, and the presence of 1BL/1RS translocation1 Effects of allelic variation in HMW2-GS and LMW2-GS and 1BL/1RS translocation on quality traits were investigated in 104 cultivars and lines1 The results showed that subunits 1 , 7 + 9 , 5 + 10 , GluA3a and GluB3j took dominant positions with frequencies of 57.5 % , 45.2 % , 63.8 % , 29.0 % and 42.5 %, respectively, and 4413 % of tested genotypes from Northwestern Spring Wheat Region (NWSWR) and 34.2 % from Northeastern Spring Wheat Region (NESWR) carried 1BΠ1R translocation (Table 1) 1 Allelic variation at Glu21 and Glu23 loci had significant influence on SDS sedimentation volume, and mixing time and mixing tolerance at 1 % probability level, and on kernel protein content and relative insoluble glutenin content at 5 % significant level (Table 2). According to the allele contribution to mixing time and mixing tolerance , the glutenin subunit loci were ranked as : Glu2D1 > Glu2B3 > Glu2B1 > Glu2A1 > Glu2A3 ( Table 3) . Various individual glutenin alleles had significant effect on quality traits, specially on gluten strengthen related parameters1 They were ranked as : at Glu2A1 loci ,1 ,2 3 > N , at Glu2D1 ,5 + 10 > 2 + 12 , at Glu2A3 , Glu2A3d > Glu2A3b > Glu2A3c > Glu2A3a ,at Glu2B3 , Glu2B3f > Glu2B3b > Glu2B3j (Table 3). The contribution of subunits 1 , 2 3 , 5 + 10 , Glu2A3d , Glu2B3f to mixing time and mixing tolerance are significantly larger than their counterpart allelic variations1 The presence of 1BΠ1R translocation had a strong and negative effect on mixing time. The mixing time of non-1BL/1RS cultivars and lines was 319 min while 1BL/1RS translocation was 315 min (Table 4).
Global Wheat Program
Chinese
0603
INT2411
Click on an image to view it in the image viewer