近代分子生物学的发展,使人们可以从同工酶酶谱的分析中来识别基因的存在和表达。这是从分子水平上认识遗传基因存在的精确指标,也是认识基因表达的生化指标。目前这一技术不仅在生物科学中得到了广泛的应用,而且在农林科学的实践中也受到了重视。例如,作物及树木的遗传与变异、抗性,基因生态与 The development of modern molecular biology makes it possible to identify the presence and expression of a gene from the analysis of isozyme zymograms. This is an accurate indicator of the existence of a gene at the molecular level and a biochemical indicator of gene expression. At present, this technology has not only been widely used in the biological sciences, but also taken seriously in the practice of agroforestry. For example, crop and tree genetic and variation, resistance, genetic ecology and