关键词: 酯酶, 同功酶[45EC], 大麦[45CJ, 49EJ], 纤毛鹅观草, 回交后代

Abstract: This paper reports the study of difference and similarity and relationship between backcrossing F₁, F₂ from cultivated barley cv. Arupo/R. ciliaris/cultivated barley cv. Arupo with their parents by means of polyamice gel electrophoresis isozyme in young roots, young spikes and young seeds. The results showed that the zymogram patterns of all backcrossing F₁ plants and F₂ lines were similar to those of cultivated barley parent cv. Arupo, but some variation were occurred, they have some isozyme bands which come from R. ciliaris, or mew hybrid isozyme bands which their two parents do not have respectively. The results indicate that the genetic materials come from R. ciliaris weresteady inherited, it proved a wide basic for transfer further of non-homologous genes, and separation of translocation lines with the fine characters from R. ciliaeis genetic materials had taken place between two patents, which suports the results of cytological and morphological studies on the backcrossing F₁ and F₂. The efficiency of esterase isozymes of young spikes of barley and its progenies in the best in this study, so it can be used in the study for barley outcrossing hybid.

Key words: ESTERASE, ISOENZYMES, BARLEY, ROEGNERIA CILIARIS, BACKCROSSING PROGENIES