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Updated: Mar 11, 2026

Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
Published on: June 21, 2018
Candidate Gene Sequence Analyses toward Identifying -Type Resistance to
Abstract:
is one of three genetic loci conferring strain-specific resistance to (SMV). The locus has been mapped to a 154-kb region on chromosome 14, containing a cluster of five nucleotide-binding leucine-rich repeat (NB-LRR) resistance genes. High sequence similarity between the candidate genes challenges fine mapping of the locus. Among the five, Glyma14g38533 showed the highest transcript abundance in 1 to 3 h of SMV-G7 inoculation. Comparative sequence analyses were conducted with the five candidate NB-LRR genes from susceptible (-type) soybean [ (L.) Merr.] cultivar Williams 82, resistant (-type) cultivar Hwangkeum, and resistant lines L29 and RRR. Sequence comparisons revealed that Glyma14g38533 had far more polymorphisms than the other candidate genes. Interestingly, Glyma14g38533 gene from -type lines exhibited 150 single-nucleotide polymorphism (SNP and six insertion-deletion (InDel) markers relative to -type line, Furthermore, the polymorphisms identified in three -type lines were highly conserved. Several polymorphisms were validated in 18 -type resistant and six -type susceptible lines and were found associated with their disease response. The majority of the polymorphisms were located in LRR domain encoding region, which is involved in pathogen recognition via protein-protein interactions. These findings associating Glyma14g38533 with -type resistance to SMV suggest it is the most likely candidate gene for .
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