Studies on The Lactate Dehydrogenase Isozymes of Varicorhinus sp.

By use of polycrylamide gel electrophoresis.The patterns of expression of LDH isozymes were investigated in six differentialed adult tissue (eye,brain,heart,kidney,liver,and muscle) and the early developmental stages (from zero to 120 h after fertilizied) of Vaicorhinus sp.The results show that:1) During the early developmetal stages LDH-A genes and LDH-B genes exhibited at the same time.Five LDH zones were found.In comparison with most other teleosts,the patternes of expression of LDH isozymes of Varicorhinus sp.have its characteristic during the early developmental stages.The gene activities are equal between A and B.2)Isozymes genes in adult Varicorhinus sp.apparently exhibit a tissue-specific expression.The LDH-C gene is only present in liver and it migrates to the cathode.Theses LDH-C4.The above results provide basic information for the biochemical genetic survey of Varicorhinus sp.populations and artificial breeding of Varicorhinus sp.