不同虾种间肌肉组织蛋白质的比较

采用薄层等电聚焦凝胶电泳方法对罗氏沼虾（Macrobrachium rosenbergii)、绿须虾（Aristeus virilis)、长毛对虾（Penaeus penicillatus)、日本对（P.japonicus)、斑节对虾（P.monodon)和周氏新对虾（Metapenaeus joyneri）的肌肉组织蛋白质进行分离，检测各蛋白质组份及其等电点。根据蛋白质区带的共享度计算共相互间的遗传距离指数，然后用聚类方法处理数据，构建系统树，分析其间的差异程度，最后确定6种虾的亲缘关系。结果表明，每种虾可获得6－11条 蛋白质区带，等电点范围在4－6．95之间。虾类肌肉组织蛋白质组份及其电泳行为，可为虾类在分类学上的定位提供生化依据。

Comparative study on museular protein in six species of shrimp

Museular protein of six species shrimp (Macrobrachium rosenbergii, Aristeus virilis, Penaeus penicillatus, P. japonicus, P. monodom and Metapenaeus joyneri) were detected using polyacrylamide gel electrophoresis method. The results showed that there were 6～11 electrophoresis bands of protein on these shrimp. Index of genetic similarity(F) was calculated. The value of (1-F) was used to evaluate genetic distances between species and to construct phylogenetic tree. These protein analysis was consistent with extant taxonomic system of shrimp group. Therefore, overall results revealed phylogenetic relationship of differential taxonomic class of shrimp group on protein.