长白红景天天然种群遗传多样性及遗传分化

本研究利用水平淀粉凝胶电泳技术对分布于黑龙江省大海林业业局平顶山及吉林省的长白山北坡的四个海拔梯度的长白红景天的遗传多样性及遗传分化进行了初步分析，

GENETIC DIVERSITY AND POPULATION DIFFERENTIATION OF RHODIOLA ANGUSTA

Genetic diversity and population differentiation of Rhodiola angusta were studied in four populations in Changbai Mountain in Jilin province and one population in Heilongjiang province using the method of horizontal starch gel electrophoresis. Allozyme data for 12 loci of 10 enzymes indicated level of genetic variability with P=0.467, A=1.48 and He=0.195, higher than Rh. sachalinensis which share the same distribution. The level of genetic variability of the four populations in Changbai Mountain increasing as the altitude rising.It provided genetic basis for adapting the habitat of high altitude and low temperature, at the same time the method of sexual reproduction accompanied by asexual reproduction ensured the number of populations. There were higher differentiation(G ST =0.134) between Pingdingshan in Heilongjiang province and the populations in Changbai Mountain, and lower between populations of Changbai Mountain (G ST =0.091).