Abstract
The QTLs for quality traits of Chinese dry noodle (CDN) were mapped based on a population of recombinant inbred lines (RILs) derived from the cross between two Chinese winter wheat varieties, Chuan 35050 and Shannong 483. Sensory quality traits of CDN were tested according to the standard of Ministry of Commerce of P.R.China (SB/T10137-93), and the textural property traits were detected using a texture analyser (TA.XTplus). We have obtained 8 putative QTLs for 6 sensory quality traits and 2 QTLs for textural property of CDN with a single QTL explainning 4.07-75.67% of phenotypic variations on chromosomes 1A, 1D, 3D, 4A, and 6D. A cluster of 3 QTLs for palate, elasticity and smoothness of CDN was found near the Glu- D1 locus on chromosome 1D with high contributions. The increasing effect come from Chuan 35050, and the relationship between the QTLs were positive. On chromosome 4A, co-location QTLs for stickiness and total score were detected in the region of Xwmc420- Xswes620- Xswes615. Their contributions were high and the increasing effects come from Shannong 483.
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