不同海拔高度川滇高山栎群体遗传多样性的变化  

THE VARIATION OF GENETIC DIVERSITY OF QUERCUS AQUIFOLIOIDES IN DIFFERENT ELEVATIONS 

作　　者：李进[1] 陈可咏[1] 李渤生[1] 

机构地区：[1]中国科学院植物研究所

出　　处：《Acta Botanica Sinica》1998年第8期761-767,共7页Acta Botanica Sinica（植物学报：英文版）

基　　金：国家"八五"攀登计划

摘　　要：采集海拔２２００～３８００ｍ川滇高山栎（ＱｕｅｒｃｕｓａｑｕｉｆｏｌｉｏｉｄｅｓＲｅｈｄ．ｅｔＷｉｌｓ．）８个群体的样品，应用同工酶电泳的方法研究其遗传变异水平，并发现遗传变异水平随着海拔高度变化呈以下趋势：海拔２４００～３３００ｍ川滇高山栎的遗传变异水平较高，而海拔３８００ｍ及２２００ｍ群体的遗传变异水平均有降低的趋势。另外，还发现人为干扰、日照多少对遗传变异水平均有影响。Samples of 8 populations representing Quercus aquifolioides Rehd. et Wils. were collected. Isozymic electrophoresis was used to analyze the genetic variability and it was found that the level of genetic variability varied regularly with different altitudes: the level of genetic variability between the altitudes of 2400 to 3300 metres was high, and it became low at the altitudes of 3800 and 2200 metres. It was also found that the factors, such as human interference and sunlight, had strong effects on the level of genetic variability.

关 键 词：川滇高山栎 同工酶电泳 遗传变异性 人为干扰 

分 类 号：Q943[生物学—植物学] S792.18[农业科学—林木遗传育种]