The analysis of the isozyme systems of G6PD and LDH showed that colour cruciancarp and red tiger goldfish are at] possessed of specific band which corresponded to tetraploidspecies.

• 因而说明了金鱼的G6PD和LDH同工酶基因座位的加倍与染色体的多倍性有关，为金鱼是四倍体的假说提供了证据。