同工酶与林木群体遗传变异研究

同工酶技术应用于林木群体遗传变异研究以来,已取得了很大的进展。本文评述了用同工酶技术研究林木群体遗传变异的情况,并对研究中应注意的几个问题进行了讨论。研究表明,在不同树种中,同工酶的变异水平很高,但林木群体间在同工酶水平上的分化却很低;同工酶技术是评估林木群体变异和分化的有效手段。

ISOZYMES AND STUDIES ON POPULATION GENETIC VARIATION IN FOREST TREES

The knowledge of population genetic variation in forest trees is the basis for further genetic improvement. Since the isozyme techniques were used in genetic studies of forest tree population, great progress has been made. This review outlines a rapid development in studies on forest tree population and genetic variation by isozyme techniques and discusses four problems which warrant careful consideration in research work. It is concluded that there are high levels of isozyme variation and limited isozyme differentiation among natural populations in most forest tree species, and isozyme techniques are very valuable for assessing levels of genetic diversity and degree of differentiation in forest trees and there is great potential of thier application to tree improvement programs, especially in China.