SLCO2A1 and infection: In a previous study, we showed that SrTm4 conferred a low hypersensitive reaction to Pgt races TTKSK, TTTTF, TRTTF, QFCSC, MCCFC (Rouse and Jin 2011a), and mesothetic infection types for additional races TPMKC, RKQQC, RCRSC, and SCCSC that were virulent to Sr21 (Briggs et al. 2015).