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植物研究 ›› 1999, Vol. 19 ›› Issue (2): 81-86.

• 论文 • 上一篇    下一篇

不同海拔梯度的高山红景天种群适应机制的初步探讨

颜廷芬, 阎秀峰, 祖元刚   

  1. 东北林业大学森林植物生态学开放研究实验室, 哈尔滨 150040
  • 收稿日期:1997-03-10 出版日期:1999-06-15 发布日期:2016-06-14
  • 基金资助:
    黑龙江省自然科学基金项目资助

A PRIMARYLY DISSCUSS ON THE ADAPTIVE MECHANISM AT DIFFERENT ALTITUDE LEVEL OF RHODIOLA SACHALINENSIS POPULATION

Yan Ting-fen, Yan Xiu-feng, Zu Yuan-gang   

  1. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040
  • Received:1997-03-10 Online:1999-06-15 Published:2016-06-14

摘要: 本文采用水平切片淀粉凝胶电泳技术分析分布于吉林省长白山北坡的高山红景天在4个海拔梯度的遗传变异,并结合形态指标和生态因子探讨高山红景天(Rhodiola sachalinensis A. Bor)的适应机制。利用变异系数对形态指标分株数、株高、叶长、叶宽和基径进行了分析;结果表明:分株数在四个海拔梯度变异最大,其次是株高;多重比较分析结果表明四个海拔梯度的分株数变异不显著,而株高则差异显著即海拔2000m处的平均株高与海拔2200m和1750m处的株高相比差异极显著。对10个酶系统17个位点检测四个海拔梯度的遗传变异中,在海拔2200m的苔原和2000m的树线的遗传变异相对较高。综合形态水平变异、等位酶水平的变异及生态因子表明高山红景天适合生长在高海拔(苔原)地区不但反映在形态变异上,而且有其遗传基础。

关键词: 高山红景天, 适应, 海拔梯度

Abstract: Genetic diversity of Rhodiola sachalinensis was studied at the four different altitude levels in Changbai Mountain using the method of horizontal starch gel electrophoresis and the adaptive mechanism was discussed, combined with morphology and ecological factors. The studying results indicated that the mechanism of Rh. sachalinensis adaption to the environment of tundra not only reflected on the variation of morphology but on the basis of it's genetic background.

Key words: Rhodiola sachalinensis, Adaption, Altitude level