Main content

Identification of Quantitative Trait Loci (QTL) Associated with Seed Soyasaponin I Concentration in Soybean (Glycine max [L] Merril.)

Show full item record

Title: Identification of Quantitative Trait Loci (QTL) Associated with Seed Soyasaponin I Concentration in Soybean (Glycine max [L] Merril.)
Author: MacDonell, Edward
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Rajcan, Istvan
Abstract: Soybean (Glycine max [L.] Merr.) is the world’s largest oilseed crop and also produces soyasaponins, which have nutraceutical properties. Soyasaponin I is the major soyasaponin derived from soybean seeds. Seed soyasaponin I concentration is a quantitative trait, which can be improved through marker-assisted selection. A population of 186 F4-derived recombinant inbred lines from the cross of ‘OAC Wallace’ and ‘OAC Glencoe’ and a trial of 40 soybean cultivars were used in this study. Six QTL associated with soyasaponin I were identified through simple and composite interval mapping. Genotype, environment, and genotype-by-environment interactions for soyasaponin I were significant in the cultivar trial and genotype was significant in the mapping population. These results contribute to a better understanding of the genetics of soyasaponin I, the influence of environment and genotype-by-environment interactions on the trait, and provide molecular markers to facilitate marker-assisted selection for soybean cultivars with improved soyasaponin I profiles.
URI: http://hdl.handle.net/10214/12102
Date: 2017-12


Files in this item

Files Size Format View Description
MacDonell_Edward_201712_Msc.pdf 1.672Mb PDF View/Open thesis

This item appears in the following Collection(s)

Show full item record