Functional genetic diversity at nucleotide binding site (NBS) loci: Comparisons among soft rot resistant and susceptible Zingiber taxa

► Assessed adaptive variation at NBS loci among Zingiber taxa. ► SSCP analysis found to be more suitable than RFLP in discriminating Zingiber spp. ► No polymorphism detected at NBS loci in ginger cultivars compared to wild taxa. ► Genomic resources identified for R-gene isolation from resistant wild taxa.