Mapping quantitative trait loci related to nodule number in soybean (<i>Glycine max</i> (L.) Merr.) in response to the <i>Sinorhizobium</i> (Ensifer) <i>fredii</i> HH103 NopT type III effector

Type III effectors play a vital role in the establishment of symbiosis. In this study, positive and negative effects NopT on nodulation were detected 30 soybean germplasms. The quantitative trait loci (QTL) related to nodule number identified their responses recombinant inbred lines chromosome segment substitution evaluated. Ten QTL chromosomes 02, 05, 06, 10, 13. One overlapping region 02 was responsive wild-type rhizobium mutant. expression patterns genes determined single nucleotide polymorphisms haplotypes analyzed identify candidate genes. Four as significantly NopT. Glyma.02G135100 Glyma.02G100800 levels directly affected by These results form basis future efforts plant host type effectors.