Mining of a major QTL and novel genes conferring resistance to SC3 and SC7 strains in soybean

Abstract

Soybean is an irreplaceable protein and oil crop in the world, while its growth and development are seriously affected by the soybean mosaic virus (SMV) disease (Adams et al., 2005). Soybean infected with SMV not only shows the typical symptoms of leaf shrinkage, necrosis, plant dwarfing and seed mottling, etc., but it also results in serious reduction of seed yield and significant deterioration of seed quality (Wrather et al., 2001). Thus, many countries, including China, always carry out the "SMV-sensitive variety veto policy" in the soybean breeding and variety registration programmes (Li et al., 2013).The cultivation and application of varieties with SMV resistance have been demonstrated as the most economical, effective and environmental friendly strategies to decrease the SMV adverse effects.To discover the genetic loci used in soybean molecular breeding, the linkage mapping and genome-wide association study (GWAS) strategies have been applied in many studies (Che et al., 2020;

Breeding for disease resistance in soybean: a global perspective

“…1 Yan et al ( 2015 ) Satt634 11,778,505 Rsc8 ZL-42 12,060,386 Greenhouse Screening SMV Strain SC8 – F2 (2122) Kefeng No. 1 Lin et al ( 2016 ), Zhao et al ( 2016 ) ZL-52 12,091,080 qSC3/7-D1b ss715580960–ss715581063 10,935,557–12,334,435 Greenhouse Screening SMV strains SC3 and SC7 54.2% RIL (279) Qihuang30 Chu et al ( 2021a ) qSC7-D1b ss715581063–ss715581097 12,334,435–12,506,411 Greenhouse Screening SMV strain SC7 27.0% RIL (279) Qihuang30 Chu et al ( 2021a ) – ss715583175 45,170,092 Greenhouse Screening SMV strain SC3 10.6% Cultivars (302) and landraces (77) – Chu et al ( 2021b ) MLG B1 (Chr. 11) – ss715608741 10,304,178 Greenhouse Screening SMV strain SC3 7.0% Cultivars (302) and landraces (77) – Chu et al ( 2021b ) MLG F (Chr.…”

Mining of seed coat cracking related genetic loci and genes in diverse soybean (Glycine max) populations

“…The genotype of RIL population was analysed by the SoySNP6K with 5403 SNPs (core subset from SoySNP50K Illumina Bead Chip array), and the genetic linkage map was constructed using Joinmap v4.0 software in our previous study (Chu, Li, Piao, Lin, et al, 2021). The linkage mapping of SCC in the present study was conducted via the inclusive composite interval mapping by ICIMapping v4.2 software similar as in our previous description (Chu, Li, Piao, Kong, et al, 2021). The threshold of likelihood of odd (LOD) score was determined by using 1000 permutations.…”