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United States Department of Agriculture

Agricultural Research Service

Title: Qtl's Associated with Soybean Seed Cell Wall Polysaccharides

Authors
item Stombaugh, S - UNIVERSITY OF MINNESOTA
item Orf, J - UNIVERSITY OF MINNESOTA
item Chase, K - UNIVERSITY OF UTAH
item Lark, K - UNIVERSITY OF UTAH
item Jung, Hans Joachim
item Somers, D - UNIVERSITY OF MINNESOTA

Submitted to: Crop Science Society Of America
Publication Type: Abstract Only
Publication Acceptance Date: November 6, 2000
Publication Date: N/A

Technical Abstract: Whole soybean [Glycine max (L.) Merr.] seed cell wall polysaccharide (CWP) content is on average about 160 g/kg dry matter. Seed CWP content exhibits genotypic and environmental variation and is negatively correlated with the sum of seed protein and oil (Stombaugh et. al., Crop Sci 40:408-412). Lowering seed CWP may result in increased protein and oil content. The objective of this study was to investigate quantitative trait loci (QTL) controlling seed CWP content. Recombinant inbred lines (RILs) from a Minsoy x Archer population (Orf et. al., Crop Sci 39:1642-1651) were grown in Waseca, MN, during the summer of 1997. Seed from the RILs were analyzed for CWP sugars using the Uppsala total dietary fiber method to determine QTLs. The Minsoy x Archer CWP data also were used for further development of preliminary near-infrared reflectance (NIR) equations for CWP sugars. The equations were used to extend the QTL analysis to other years and RIL populations. Understanding the genetic control of seed CWP content and developing CWP NIR equations will aid breeding efforts for lowering seed CWP.

Last Modified: 4/20/2014
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