Artículos de revistas
The effects of GpcB1 locus on high grain protein concentration introgressed into Argentinean wheat germplasm
Fecha
2012-11Registro en:
Tabbita, Facundo; Lewis, Silvina Marta; Vouilloz, Juan P.; Ortega, María de los Ángeles Haydée; Kade, Mariana; et al.; The effects of GpcB1 locus on high grain protein concentration introgressed into Argentinean wheat germplasm; Wiley; Plant Breeding; 132; 1; 11-2012; 48-52
0179-9541
1439-0523
CONICET Digital
CONICET
Autor
Tabbita, Facundo
Lewis, Silvina Marta
Vouilloz, Juan P.
Ortega, María de los Ángeles Haydée
Kade, Mariana
Abbate, Pablo Eduardo
Barneix, Atilio José
Resumen
Wheat grain protein content (GPC) is important for human nutrition and<br />has a strong influence on the quality of pasta and bread. The objective of<br />this study was to analyse the introduction of the Gpc-B1 allele into two<br />Argentinean bread wheat cultivars. Near-isogenic lines were developed in<br />?ProINTA Oasis? and ?ProINTA Granar? using marker-assisted selection.<br />Gpc-B1 lines showed a significant (P = 0.01) increase in GPC and a significant<br />(P = 0.001) decrease in grain weight in comparison with control<br />lines without Gpc-B1. Differences in yield were not significant<br />(P = 0.49) between lines. Gpc-B1 lines significantly reduced (P = 0.02)<br />straw nitrogen concentration at maturity and significantly increased<br />(P = 0.02) the nitrogen harvest index. When data were analysed by genotype<br />and environment, differences in some analysed parameters were<br />found, indicating that Gpc-B1 expression may be affected by different<br />genetic backgrounds and environmental conditions. These results suggest<br />that the introgression of the Gpc-B1 allele into Argentinean wheat germplasm<br />could be a valuable resource for improving GPC with no detrimental<br />effect on grain yield.