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Development of recombinant high yielding lines with improved protein content in rice (Oryza sativa L.)

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Title Development of recombinant high yielding lines with improved protein content in rice (Oryza sativa L.)
Not Available
 
Creator K. Chattopadhyay
S. G. Sharma
T. B. Bagchi
K. A. Molla
S. Sarkar
B. C. Marndi
A. Sarkar
S. K. Dash
O. N. Singh
 
Subject Bulk-pedigree breeding
grain quality
high protein rice
NIR spectroscopy
response to selection
 
Description Not Available
Rice has the lowest grain protein content (GPC) among cereals. Efforts have been made to improve GPC through the modified bulk-pedigree method of selection. A total of 1780 F8 recombinant lines were derived in the year 2013 from five different cross combinations involving two high-GPC landraces, namely ARC10075 and ARC10063, three high-yielding parents, namely Swarna, Naveen and IR64, and one parent, namely Sharbati, known for superior grain quality with high micronutrient content. Near-infrared spectroscopy was used to facilitate high-throughput selection for GPC. Significant selection differential, response to selection and non-significant differences between the predicted and observed response to selection for GPC and protein yield indicated the effectiveness of this selection process. This resulted in lines with high GPC, protein yield and desirable levels of amylose content. Further, based on high mean and stability for GPC and protein yield over the environments in the wet seasons of 2013, 2014 and the dry season of 2014, 12 elite lines were identified. Higher accumulation of glutelin fraction and non-significant change in prolamin/glutelin ratio in the grain suggested safe guarding of the nutritional value of rice grain protein of most of these identified lines. Since rice is the staple food of millions, the output of breeding for high GPC could have a significant role in alleviating protein malnutrition, especially in the developing world.
Not Available
 
Date 2018-11-09T06:07:27Z
2018-11-09T06:07:27Z
2018
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/9873
 
Language English
 
Relation Not Available;
 
Publisher Not Available