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A 160:268–282īradbury PJ, Zhang Z, Kroon DE, Casstevens TM, Ramdoss Y, Buckler ES (2007) TASSEL: software for association mapping of complex traits in diverse samples. Agronomix Software, Inc., Winnipeg, p 428īartlett MS (1937) Properties of sufficiency and statistical tests. QTL identified in this study may facilitate marker-assisted selection for the development of food-grade soybean lines with improved functional properties.Īgronomix Software, Inc (1999) Agrobase 99 user’s guide and reference manual. A significant positive correlation was observed between soyasaponin I and seed protein concentration in the mapping population, which may be advantageous for the development of soybean lines with improved soyasaponin I profiles. Putative QTL associated with the accumulation of soyasaponin I were identified through simple interval mapping and composite interval mapping on chromosomes 10 and 16, which explained up to 11% of the total phenotypic variation per QTL for the trait. The concentration of soyasaponin I was determined using high-performance liquid chromatography. The population consisting of 186 F 4:7 recombinant inbred lines derived from the cross of ‘OAC Glencoe’ and ‘OAC Wallace’ was grown in two Southern Ontario locations in 20.
The objective of this study was to identify quantitative trait loci (QTL) associated with the accumulation of soyasaponin I using a genetic mapping population. While some of the genes in the biosynthesis of soyasaponins have been characterized, the underlying genetics of soyasaponins as a quantitative trait is still poorly understood. The predominant form soyasaponin B is soyasaponin I. Soyasaponin B forms that are naturally found in soybean ( Glycine max Merr.) seed, have been of interest to the food industry because of their functional food properties. Key message Significant QTL for soyasaponin I, as the major component of the soyasaponin B, have been identified using an RIL soybean population, which could facilitate the development of functional food soybean cultivars.
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