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Soybean research has found that nodule traits, especially nodule biomass, are associated with N2 fixation ability. Two genotypes, differing in nodule number per plant and individual nodule weight, KS4895 and Jackson, were mated to create 17 F3- and 80 F5-derived RILs. The population was mapped with 664 informative markers with an average distance of less than 20 cM between adjacent markers. Nodule...
Deployment of resistant soybean cultivars is the most effective and economical method of controlling Phytophthora root rot (PRR) incited by Phytophthora sojae, and characterization of Phytophthora resistance of the soybean cultivars greatly facilitates the effective utilization. The objective of this study was to characterize the resistance phenotype in 30 soybean cultivars/lines bred in Henan province...
Soybean (Glycine max L.) displays considerable variation in its resistance to insects. Characterization and application of insect resistance genes in soybean germplasm may be a sustainable and economical approach to soybean production. In this study, we demonstrated that the gene encoding allene oxide synthase (GmAOS1) was associated with soybean defense against the common cutworm (CCW, Spodoptera litura...
Hypocotyl saponin composition of 1,198 accessions of wild soybean (Glycine soja) collected from China, Korea, Japan and Russia Far East was analyzed by thin-layer chromatography to determine polymorphic variation and geographical distribution. Eight common distinguishable saponin phenotypes were identified: Aa, Ab, AaBc, AbBc, Aa+α, Ab+α, AaBc+α and AbBc+α. The latter four +α type were new. All eight...
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