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Integrating Genetics and Genomics to Advance Soybean Research

Reference Report for RGB20121017.1
Title:Quantitative trait loci associated with moisture, protein, and oil content in soybean
Authors:Adkond, A., Ragin, B., Bazzelle, R., Kantartzi, S., Meksem, K., Kassem, M.
Source:J. Ag. Sci. 2012, 4(11):16-25
Abstract:The objectives of this study were to detect quantitative trait loci (QTL) for moisture, protein, and oil content insoybean grown in two plant density environments. Soybean recombinant inbred lines (RIL), obtained from across between cultivars PI 438489B and Hamilton, were used. Thirty one linkage groups were obtained fromhigh density genetic linkage maps constructed by 1,536 Universal Soy Linkage Panel 1.0 of single nucleotidepolymorphisms (SNP) markers. For the lines cultivated in higher plant density (25 cm row space), ten QTLswere mapped in A2, B2, C2, D1a, M and O linkage groups for moisture, protein, and oil. Two QTLs formoisture, two QTLs for protein and six QTLs for oil explained 0.09, 15.36 and 3.54% of the phenotypicvariation of moisture, protein, and oil respectively. For the lines cultivated in lower density (50 cm row space),three QTLs for each of moisture and protein were mapped in linkage groups A2, C1, D1b, L and O; QTLs formoisture and protein explained 0.96 and 10.63% of the phenotypic variation respectively. These QTL willfacilitate the implementation of MAS for moisture, protein and oil content in soybean-breeding programs.






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