斑腿蝗科10属NOR定位及其细胞分类学意义

THE NOR LOCALIZATION OF 10 GENERA OFCATANTOPIDAE AND ITS SIGNIFICANCEIN CYTOTAXONOMY

本文以银染技术对我国斑腿蝗科10个属的代表种类进行了核仁组织者区域(NOR)定位研究。结果表明:NOR位置在同属内不同种间显示出种间相似性,而不同属间则有差别,揭示了属内同源性。

In this present paper, the NOR localization in the representative species of 10 genera belonging to 3 subfamilies have been studied by Ag-staining method. The results show that the NOR localization are different among these genera, and same location in the same genus. For example, in Oxya, the five species studied, all of them show the NOR location on L2 and M8 chromosomes, and genus Gesonula, the location is S9 chromosome; Genus Caryanda the NOR localises on L2 chromosome, etc. From the results above, we considered that the NOR localization is paralleli with the evolutionary rate of genus category in Catantopidae. When make sure some species belonging to a certain genus, the NOR localization should be a useful cytoiogical mark.