Genetic study of pre-harvest sprouting in spring wheat

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dc.contributor.authorRamanpreet, Ramanpreet
dc.contributor.examiningcommitteeMcCartney, Curt (Plant Science)
dc.contributor.examiningcommitteeIzydorczyk, Marta (Food and Human Nutritional Sciences)
dc.contributor.supervisorAyele, Belay
dc.date.accessioned2024-01-19T16:26:10Z
dc.date.available2024-01-19T16:26:10Z
dc.date.issued2024-01-17
dc.date.submitted2024-01-18T02:29:09Zen_US
dc.degree.disciplinePlant Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)
dc.description.abstractPre-harvest sprouting (PHS), which is defined as the germination of seeds prior to harvest under moist conditions, occurs in wheat and is closely related to seed dormancy. Low levels of seed dormancy result in pre-harvest sprouting, which adversely impacts wheat grain yield and end-use quality; for example, sprouted seeds have poor quality that is unsuitable for baking. On the other hand, high levels of seed dormancy cause a delay in germination and seedling establishment. Therefore, prevention of PHS or minimizing its negative effects in wheat requires the development of wheat cultivars with moderate level of dormancy in the seeds. However, the development of such cultivars requires the need to identify genomic regions and genes that are responsible for PHS resistance. Therefore, this research was focused on genome wide association study of a collection of spring wheat lines, which show a wide range of variation in seed dormancy, over six trial environments. Analysis of the association between the phenotypic and genotypic data of wheat lines studied led to the detection of the genomic regions and candidate genes that might have the potential to introduce PHS resistance in spring wheat.
dc.description.noteFebruary 2024
dc.identifier.urihttp://hdl.handle.net/1993/37999
dc.language.isoeng
dc.rightsopen accessen_US
dc.subjectGenome wide association mapping
dc.subjectDormancy
dc.subjectQTL
dc.titleGenetic study of pre-harvest sprouting in spring wheat
dc.typemaster thesisen_US
local.subject.manitobano
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