%A ANG Li,HUANG Yu-Lian,CHANG Ping,YAN Jun,ZHANG Ye-Lun,XIA Xian-Chun,TIAN Yu-Bing,HE Zhong-Hu,ZHANG Yong %T QTL Mapping for Arabinoxylans Content and Its Relationship with Processing Quality in Common Wheat %0 Journal Article %D 2014 %J Acta Agronomica Sinica %R 10.3724/SP.J.1006.2014.01695 %P 1695-1701 %V 40 %N 09 %U {https://zwxb.chinacrops.org/CN/abstract/article_5732.shtml} %8 2014-09-12 %X

Arabinoxylans (AX) are the hydrophilic nonstarch polysaccharides in wheat grain, and they play a critical role in food processing and nutrition quality. Quantitative trait loci (QTLs) for water-extractable (WE-AX) and total AX (TOT-AX) contents were identified and mapped using 240 recombinant inbred lines (RILs, F2:6) derived from the cross between PH82-2 and Neixiang 188. Besides, relationships between WE-AX and TOT-AX contents and protein content, Mixograph and Rapid Viscosity Analyzer (RVA) parameters were evaluated. Inclusive composite interval mapping identified five QTLs for TOT-AX content on chromosomes 1B, 4B, 5B, 5D, and 6B, which explained 5.6–18.7% of the phenotypic variations. Five QTLs associated with WE-AX content were mapped on chromosomes 1A, 1B, 5B, 6B, and 7A, explaining 4.3–34.9% of the phenotypic variation. QTLs for TOT-AX content on chromosomes 1B, 5B, and 6B shared identical marker intervals with those for WE-AX content. 1BL/1RS translocation affected both TOT-AX and WE-AX contents, whereas, grain hardness only affected WE-AX content. TOT-AX content had significant correlations with RVA parameters including peak viscosity, breakdown, final viscosity, setback, and Chinese White Salted Noodle quality traits (springness and flavor), but the correlation coefficients were influenced by 1BL/1RS translocation and the type of grain hardness.