Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Synchytriomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
       Order Synchytriales Doweld (2014)
         Family Synchytriaceae J.Schröt. (1892)
           Genus Johnkarlingia Pavgi & S.L. Singh (1979) [monotypic]
             1 Johnkarlingia brassicaeᵀ S.L. Singh & Pavgi (1979)