采用垂直板型聚丙烯酰胺凝胶电泳研究了黄山西部青冈〔Cyclobalanopsis glauca ( Thunb .)Oerst .〕种群小地理范围的遗传分化。 黄山 2 个亚种群之间基因频率基本没有差异, 基因多样性平均为 0.1826, 小岭和钓桥亚种群分别有 2 个和 1 个位点存在显著的杂合子不足的现象。 亚种群之间的遗传分化程度很低( GST =0.976 %) , 主要是由于小地理范围的生境异质性程度低和较大的基因流( 平均为 17.3) 造成的。
 

Microgeographic differentiation in a Cyclobalanopsis glauca ( Thunb .) Oerst .population in western Huangshan was examined using vertical slab poly acrylamide gel electrophoresis .No significant differences of allelic frequencies were detected between tw o subpopulations .Mean gene diversity in subpopulations was 0 .1826, and significant deficiencies of heterozygotes were found at 2 and 1 loci in Xiaoling and Diaoqiao subpopulation, respectively .There occurred very low differentiation between the two subpopulations ( GST =0 .976 %) .It might be due to homogenous microhabitats and high gene flow ( mean Nm was 17 .3) .