Journal
FIELD CROPS RESEARCH
Volume 123, Issue 3, Pages 226-233Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fcr.2011.05.013
Keywords
Bread wheat; Grain protein content; Leaf rust; MAS
Categories
Funding
- DBT, New Delhi
- DST, New Delhi
- UGC, New Delhi
- CSIR, New Delhi
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In bread wheat, high grain protein content (GPC) determines nutritional value, processing properties and quality of the end-product. In view of this, marker-assisted selection (MAS) was performed for introgression of a major gene for high GPC (Gpc-B1) into 10 wheat genotypes. As a result, 124 BC(3)F(5)/F(6) progenies with Gpc-B1 were developed and evaluated in multi-location field trials. Significant interaction of Gpc-B1 with the recipient parent genotypes and the environment was noticed. However, a total of seven MAS-derived progenies with significantly higher GPC (14.83-17.85%) than their recipient parental genotypes and having no yield penalty were obtained. In these selected progenies, no significant negative correlation of grain yield with GPC (%) or protein yield was observed suggesting that GPC could be improved without yield penalty. This study thus suggested that MAS in combination with phenotypic selection is a useful strategy for development of wheat genotypes with high GPC associated with no loss in yield. (c) 2011 Elsevier B.V. All rights reserved.
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