Coreidae Some Species Esterase Isozymes In Molecular Systematic Study (hemiptera: Coreidae)

The present paper deals with the systematics of the EST isoenzyme inCoreidae bugs which totally include four subfamilies, elevn genera and seventeen speciesform the Mountain QinBa were examined by using the technique of vertical slab polyacry-lamide ge1 electrophoresis.The genetic structures of the spectrums of EST in ten Coreidae bugs which had beencaptured more were also analysized in detail. The results are as follows:l. There are genetic polymorphism of EST isozyme in Coreidae bugs. All the esterasemay be monomeric enzyme toward naphthyl ester substrates except for those which weredominated by monomorphic loci. The number of the EST 1oci of the ten species range fromthree to five respective1y, and each loci has one to seven al1eles.2. At some loci, differences in alleic among three populations of Riptortus pedestrisFabricius appeared, but the data available is limited and conclusion can't be drawn.3. The genetic variability of individuals within Coreidae species may result from thepair of different al1e1es at same loci, And sex-linked gene may result in the difference be-tween female and male within species. The variances between sexes are more significantthan those of the individuals and are less obvious than the differences among interspecific.The extent of the varances among genera and species accord to their morphological traits.4. Changing distribution patterns of EST isozymes in different tissue of Anoplocne-nuis binotata Distant were found. It may be due to special physio1ogical function.5. Connecting isoenzyme electrophoresis with numberical taxonomy method can takean active in the classificaion and systematics study of Coreidae bugs. We expect this studycan provide some basic materals for the reserarch of this group.