Christopher M Grainger

Christopher M Grainger
University of Guelph | UOGuelph · Department of Plant Agriculture

BSc Molecular Biology and Genetics, MSc Plant Breeding and Genetics

About

24
Publications
14,744
Reads
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273
Citations
Citations since 2016
12 Research Items
215 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Additional affiliations
January 2008 - present
University of Guelph
Position
  • Laboratory Manager/Research Associate
January 2006 - December 2007
Canadian Centre for DNA Barcoding
Position
  • Laboratory Manager
April 2002 - December 2005
University of Guelph
Position
  • Laboratory Manager

Publications

Publications (24)
Article
Full-text available
Key message Significant QTL for sucrose concentration have been identified using a historical soybean genomic panel, which could aid in the development of food-grade soybean cultivars. Abstract Soybean (Glycine max (L.) Merr) is a crop of global importance for both human and animal consumption, which was domesticated in China more than 6000 years...
Article
Full-text available
Soybean [ Glycine max (L.) Merr.] is the world's leading legume crop and the largest oilseed crop. It forms a symbiotic relationship with rhizobia bacteria residing in root nodules that provide fixed nitrogen to host plants through symbiotic nitrogen fixation (SNF). In soybean, it has been widely reported that the highest SNF occurs at the pod-fill...
Article
Full-text available
Cannabis sativa is relatively recalcitrant to de novo regeneration, but several studies have reported shoot organogenesis or somatic embryogenesis from non-meristematic tissues. Most report infrequent regeneration rates from these tissues, but a landmark publication from 2010 achieved regeneration from leaf explants with a 96% response rate, produc...
Article
Full-text available
Palmer amaranth is one of the most economically important and widespread weeds of arable land in the United States. Although no populations are currently known to exist in Canada, its distribution has expanded northward such that it is present in many of the States bordering Canada and multiple pathways exist for its introduction. In this short com...
Preprint
Full-text available
Soybean ( Glycine max (L.) Merr) is a crop of global importance for both human and animal consumption, which was domesticated in China more than 6000 years ago. A concern about losing genetic diversity as a result of decades of breeding has been expressed by soybean researchers. In order to develop new cultivars, it is critical for breeders to unde...
Preprint
Full-text available
Cannabis sativa is relatively recalcitrant to regeneration from somatic tissues, but several reports have been published demonstrating a response. Most reports show low levels of regeneration from somatic tissues, but a landmark publication by Lata et al. in 2010 reported regeneration from leaf explants with a 96% response rate, producing an averag...
Article
Full-text available
Key message: Identification of marker-trait associations and trait-associated haplotypes in breeding germplasm identifies regions under selection and highlights changes in haplotype diversity over decades of soybean improvement in Canada. Understanding marker-trait associations using genome-wide association in soybean is typically carried out in d...
Article
Full-text available
Key message Genetic diversity in Canadian soybean is maintained over decades of selection in two public breeding programs. Breeders have used a portion of the genetic diversity available in germplasm collections. Abstract Both public and private breeding efforts have been critical for the development of soybean cultivars grown around the world. Gl...
Article
The apparent efficacy of linuron to control pigweeds (Amaranthus spp.) has declined in Ontario, Canada, in past decades, possibly due to resistance. Samples were collected in multiple fields across Ontario with reported linuron failure. These were characterized at the whole-plant and molecular levels. Screening with linuron revealed resistance in s...
Article
Full-text available
Genetic hitchhiking methods used to uncover selection signatures related to traits of agronomic importance in crops have primarily been used at the level of domestication by comparing groups of wild germplasm to landraces or elite breeding lines. In this study, two groups of cultivars defined by an elite Canadian soybean cultivar, ‘OAC Bayfield’, w...
Article
Full-text available
Glyphosate-resistant populations of Conyza canadensis have been spreading at a rapid rate in Ontario, Canada, since first being documented in 2010. Determining the genetic relationship among existing Ontario populations is necessary to understand the spread and selection of the resistant biotypes. The objectives of this study were to: (1) character...
Article
Full-text available
Genotyping through the pedigrees of elite soybean [Glycine max (L.) Merr.] cultivars developed by a breeding program represents an opportunity to explore and characterize various molecular and genetic changes that are a direct result of long-term selection by soybean breeders. For soybeans bred for Ontario Canada, one such elite cultivar was OAC Ba...
Article
Full-text available
Soybean [Glycine max (L.) Merr.] oil from conventional cultivars typically contains ~30 g kg−1 stearic acid of the total seed oil. Increased stearic acid concentration in the seed oil of soybeans is desirable for certain food and industrial uses. To date a small number of mutants have been developed with increased stearic acid levels three to six t...
Article
Full-text available
Production of high-lutein maize grain is of particular interest as a value-added feed source to produce high-lutein eggs. In this paper, it is demonstrated that heterosis for total carotenoid concentration and for the ratio of lutein to zeaxanthin (L:Z ratio), or profile type, exists infrequently in yellow dent crosses. However, yellow dent inbred...
Article
Full-text available
Lutein and zeaxanthin are commonly referred to as the macular carotenoids, as they are local- ized to ocular tissues and their loss is associ- ated with age-related macular degeneration. Thirty-four high-carotenoid (HiC) lines exhibit- ing uniquely high concentrations of carotenoids resulted from allele mining of the Orange Flint race using traditi...
Article
High carotenoid maize is an ideal source of high value dietary carotenoids, especially lutein and zeaxanthin, in human and animal feed and has been proposed as a feedstock for high carotenoid egg production. A modified analytical method was demonstrated to have reliability, reproducibility, and improved run-time and separation of xanthophylls. This...
Article
Full-text available
Knowledge of the inheritance of C-glycosyl flavone synthesis in maize (Zea mays L.) silk tissues has been acquired through detailed genetic studies involving primarily germplasm from the Corn Belt Dent race. To test the robustness of this genetic knowledge, we examined C-glycosyl flavone synthesis in a genetically distinct germplasm pool, popcorn....
Conference Paper
Full-text available
Protocols Canadian Centre for DNA Barcoding Dye terminator sequencing of COI for the 3730xl DNA Analyzer (Applied Biosystems) The cycle sequencing reaction recipe will depend on the sequencing clean-up method. Recently, CCDB switched to a semi-automated AutoDTR™ method from EdgeBio®. This sequencing clean-up method is less sensitive to PCR product...
Conference Paper
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