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- Title
Small-Scale Bread-Quality-Test Performance Heritability in Bread Wheat: Influence of High Molecular Weight Glutenin Subunits and the 1BL.1RS Translocation.
- Authors
Nishio, Z.; Takata, K.; Ito, M.; Tabiki, T.; Ikeda, T. M.; Fujita, Y.; Maruyama-Funatsuki, W.; Iriki, N.; Yamauchi, H.
- Abstract
Small-scale bread-quality assays (grain protein content, SDS-sedimentation volume [SDSS], and single-kernel characterization system [SKCS] grain hardness) represent important tools in bread wheat (Triticum aestivum L.) breeding. The influence of high-molecular-weight glutenin (HMWG) subunits and the 1BL.1RS translocation on small-scale bread-quality assays and their heritability was investigated for F3 and F4 lines of two wheat populations. Lines with HMWG subunits 5+10 at GIu-D1 showed significantly greater SDSS volume and SKCS hardness than those with subunits 2+12 or 4+12. Lines with HMWG subunit 20 at GIu-B1 had a significantly lower SDSS volume than those with HMWG subunits 7+8 or 7+9. F4 lines bearing the 1BL.1RS translocation had significantly greater protein content. The distribution of SDSS volumes suggested that most bore the undesirable HMWG subunits 2+12, 4+12 or 20, but could be selected against if the SDSS volume <6.0 mL. For SDSS volume, lines with HMWG subunits 5+10 had greater heritability in upward screening, whereas those with HMWG subunits 2+12 or 4+12 had greater heritability in downward screening. The above screening criterion provides an excellent tool for bread quality-based wheat breeding, irrespective of hard x hard or hard x soft wheat crosses.
- Subjects
PLANT breeding; WHEAT; HERITABILITY; PROTEIN analysis; PLANT translocation; SOFT wheat; BREAD; FOOD quality; MOLECULAR weights
- Publication
Crop Science, 2007, Vol 47, Issue 4, p1451
- ISSN
0011-183X
- Publication type
Article
- DOI
10.2135/cropsci2006.07.0459