Detection of quantitative trait loci for paste viscosity characteristics based on the doubled haploid progeny from a cross between two Chinese wheat varieties

Abstract

, J. 2009. Detection of quantitative trait loci for paste viscosity characteristics based on the doubled haploid progeny from a cross between two Chinese wheat varieties. Can. J. Plant Sci. 89: 837Á844. In order to understand the genetic basis of starch pasting viscosity characteristics (the RVA profile, which is produced by the Rapid Visco Analyser) of wheat grain samples, a doubled haploid (DH) population (Huapei 3 )Yumai 57; Yumai 57 is superior to Huapei 3 for RVA profile parameters) and a linkage map consisting of 324 marker loci were used to search QTL. This program was based on mixed linear models and allowed simultaneous mapping of additive effect QTL, epistatic QTL, and QTL )environment interactions (QE). Mapping analysis produced a total of 35 QTL for 6 RVA profile parameters with a single QTL explaining 0.91Á21.34% of phenotypic variations. The 35 QTL were distributed on 15 chromosomes. The QBd-4A had the most significant additive effect, accounting for 21.34% of the phenotypic variance. Two QTL clusters for RVA profile parameters were located on chromosomes 2A and 4A, respectively. The information obtained in this study should be useful for manipulating the QTL for RVA profiles parameters by molecular assisted selection (MAS) in wheat breeding programs.

QTL mapping of the pasting properties of wheat flour treated by papain digestion

“…Epistatic and epistatic × environment interactions are the genetic basis for some traits, as demonstrated in recent QTL mapping studies . In the present study, five pairs of QTLs with an epistatic effect were identified for PV, TV, SB, and PT, accounting for 0.67, 3.35, 2.97, 8.57, and 2.34% of the phenotypic variance, respectively.…”

“…Many studies have demonstrated that the QTLs affecting the pasting properties of wheat flour are located on different chromosomes . Deng et al found that the QTLs for RVA parameters were primarily located on chromosomes 1A, 3B, 4A, and 7A.…”

“…Recently, a large number of QTL studies have been performed to determine the genetic basis of pasting properties in wheat. Researchers have found that QTLs for pasting properties are widely distributed on all 21 wheat chromosomes [1,[16][17][18][19][20][21][22]. Among them, QTLs for PV are mainly located on chromosomes 1A, 1B, 3A, 3B, 3D, 4A, 4B, 6D, 7A, and 7B [1,17,19,20,23], and QTLs for SB are mainly on chromosomes 1A, 3B, 4A, 6D, and 7B [1,19,20,24,25].…”

Genome-Wide QTL Mapping for Wheat Processing Quality Parameters in a Gaocheng 8901/Zhoumai 16 Recombinant Inbred Line Population

“…Although there are many reports on QTL for quality traits in wheat (Huang et al, 2006 ; McCartney et al, 2006 ; Sun et al, 2008 ; Patil et al, 2009 ; Zhao et al, 2009 ; Tsilo et al, 2011 ; Li et al, 2012 ; Deng et al, 2013 , 2015 ; Zheng et al, 2013 ; Prashant et al, 2015 ), few genes are identified in single QTL analysis. The main reason is that SSR markers previously used in QTL analysis have insufficient density and are often in non-coding regions.…”

“…Dough strength and starch pasting characteristics are quantitative traits controlled by multiple genes. Several QTLs for Mixograph (Huang et al, 2006 ; McCartney et al, 2006 ; Patil et al, 2009 ; Tsilo et al, 2011 ; Li et al, 2012 ; Deng et al, 2013 ; Zheng et al, 2013 ; Prashant et al, 2015 ) and RVA parameters (McCartney et al, 2006 ; Sun et al, 2008 ; Zhao et al, 2009 ; Deng et al, 2015 ) were reported using different populations. However, these reports were primarily based on simple sequence repeat (SSR) markers, resulting in relatively large genetic distances defining QTL and markers due to the limited numbers of such markers, which leads to difficulty for gene cloning based on QTL analysis and marker-assisted selection (MAS) in wheat breeding.…”