Registration of CO940610/‘Platte’ Wheat Doubled Haploid Mapping Population

Abstract

CO940610/‘Platte’ (Reg. No. MP‐6, NSL 510728), a hard white winter wheat (Triticum aestivum L.) doubled haploid (DH) mapping population was developed by the Wheat Breeding Program at Colorado State University, Fort Collins, CO, with assistance from Syngenta Cereals. The population consists of 185 DH lines and was developed to map quantitative trait loci (QTL) for dough rheology, bread‐making quality, and agronomic traits. The population was genotyped with diversity array technology (DArT), simple sequence repeat, sequence tagged site, and glutenin protein markers. The population segregates for five high and low molecular weight glutenin loci, making the population particularly informative for dough rheology and bread‐making quality traits. The genetic map included 250 marker loci on 34 linkage groups on 21 chromosomes. The population was evaluated under fully irrigated and limited irrigation conditions in side‐by‐side trials in Fort Collins and Greeley, CO, in 2007–2008 and 2008–2009, respectively, for a total of four environments. All traits showed a wide range of values under both moisture treatments. A total of 158 QTL was detected in the four environments, with approximately equal numbers detected under full and limited irrigation. The information obtained from this population may be helpful for wheat breeders in choosing parents and conducting marker‐assisted selection for these traits under a range of soil moisture levels.

Mapping Quantitative Trait Loci for Agronomic Traits in Winter Wheat under Different Soil Moisture Levels

“…A mapping population of 185 DH lines was derived by crossing CO940610 (as the female parent) and 'Platte' (PI 596297). A detailed description of population development is included in [33]. Briefly, CO940610 is a hard white winter wheat experimental line developed by the Wheat Breeding Program at Colorado State University (CSU).…”

Deciphering the Genetics of Major End-Use Quality Traits in Wheat

“…In addition to the A-QTL, this study identified two novel stable epistatic DE-QTL ( DEQ.MMLPT.ndsu.2A2/4B1 and DEQ.MMLPT.ndsu.4A1/5A1 ) for mixograph MID line peak time on pairs of linkage groups 2A2/4B1 and 4A1/5A1, respectively. In another study, El-Feki et al (2015) identified a significant epistatic interaction between the Glu-B1 locus on chromosome B1 and a QTL region near the microsatellite marker Xwmc76 on chromosome 7B for mixograph MID line peak time in a doubled haploid hard winter wheat population.…”

“…Performing these evaluations at a late stage in the breeding program often results in ostensibly promising wheat lines with high yield and resistance to diseases that cannot be released due to poor end-use quality traits, such as a weak performance for milling parameters and baking properties. To address these challenges, many studies have been conducted to identify quantitative trait loci (QTL) and associated markers for end-use quality traits, with the aim to use such markers in marker-assisted selection (MAS) to improve quality traits in early generations of the breeding program (Campbell et al 2001; Prasad et al 2003; Breseghello et al 2005; Kulwal et al 2005; Arbelbide and Bernardo 2006; Breseghello and Sorrells 2006; Huang et al 2006; Kuchel et al 2006; Kunert et al 2007; Mann et al 2009; Tsilo et al 2010; Zhao et al 2010; Carter et al 2012; Li et al 2012b; Simons et al 2012; El-Feki et al 2015; Deng et al 2015; Echeverry-Solarte et al 2015; Tiwari et al 2016; Jin et al 2016). It should be mentioned that MAS for end-use quality traits would be commenced from F 5 generation onwards if a single seed decent (SSD) method is used to develop wheat cultivars.…”