新疆五种蝗虫的生化遗传学研究STUDY ON ISOENZYMES IN FIVE GRASSHOPPERS OF XINJIANG
姜涛
摘要(Abstract):
应用同工酶技术,对隶属于两科五属的五种蝗虫的乳酸脱氢酶(LDH)同工酶、酯酶(EST)同工酶和苹果酸脱氢酶(MDH)同工酶进行了生化遗传学研究,共分析了7个基因位点,采用Nei(1972)的公式,计算各位点上等位基因的频率,求出标准遗传距离(D)和物种分化时间(t),并进行了聚类分析,得出以三点结论:1.五种蝗虫种间LDH,EST和MDH在基因位点的表达,各位点上等位基因的分布以及同一位点上各等位基因的频率三方面均具有明显差异。2.这五种蝗虫及所分析的7个基因位点,都表现出较高程度的基因分化和遗传多态现象。3.初步确定了这五种蝗虫种间的亲疏关系及物种分化时间。
关键词(KeyWords): 聚丙烯酰胺凝胶电泳;同工酶;生化遗传学;蝗虫;新疆
基金项目(Foundation):
作者(Author): 姜涛
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