Both strains manifest polymorphism on G-3-PD,G -6-PD, Es-6 and Es- 8 loci, and GOT- 1 locus in DHP strain is also polymorphic.

• 二个品系的G－3－PD，G－6－PD、ES－6和ES－8位点呈多态性，DPH品系还有GOT-1位点呈多态性。