CC-225 spr-u-1-6-2 sr-u-2-60 mt- Locus: 16S rRNA, chloroplast genome
Source: From a biparental zygote obtained in a cross in the Boynton-Gillham laboratory of CC-148 sr-u-2-60 er-u-37 mt+ (30s UV) x CC-146 spr-u-1-6-2 nr-1-1 mt-.
Comment: This strain provides streptomycin and spectinomycin resistance markers in combination, and has been used extensively in crosses at Duke.