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植物研究 ›› 1998, Vol. 18 ›› Issue (3): 304-310.

• 论文 • 上一篇    下一篇

高山红景天(Rhodiola sachalinensis)遗传变异及其濒危机制的探讨

祖元刚, 颜廷芬, 周福军   

  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:1998-01-26 出版日期:1998-09-15 发布日期:2016-06-14
  • 基金资助:
    国家教委跨世纪优秀人才培养计划基金和黑龙江省杰出青年科学基金项目资助。

A PRELIMINART STUDY ON GENETIC VARIATION AND ENDANGERED MECHANISM OF RHODIOLA SACHALINENSIS NATURAL POPULATION

Zu Yuan-gang, Yan Ting-fen, Zhou Fu-jun   

  1. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040
  • Received:1998-01-26 Online:1998-09-15 Published:2016-06-14

摘要: 采用淀粉凝胶电泳手段,等位酶分析技术对分布于黑龙江大海林林业局高山红景天天然分布区内3个亚种群及吉林长白山1个亚种群的9种酶系统18个位点进行了遗传分析,结果表明种群内存在一定的遗传变异(多态位点百分比为30.55%,等位基因平均数为1.333),但不是很丰富,主要是该种狭窄的分布区致使生境单一及人为破坏其本身的生物学特性在长期的进化过程中相互适应相互选择的结果。在黑龙江的分布区内各亚种群之间一致度较高,而位于长白山的亚种群与黑龙江的各亚种群之间有一定的遗传分化,而且个别位点上差异很大,这可能与适应特定的环境有关。

关键词: 高山红景天, 遗传生态学, 等位酶, 遗传变异, 适应

Abstract: Genetic variation level was determined for four subpopulations of Rhodiola sachalinensis using allozyme analysis, allele variation at 18 loci was determined for 9 enzyme systems.The results showed that there were relative genetic variability within population and not very high.It was concerned with the limited distribution and its biological characteristics.The value of genetic identity among three subpopulations in Heilongjiang province was very high, but there were some genetic differentiation between the subpopulations distributed in Changbai Mountain and the subpopulations distributed in Heilongjiang province, and there were very highly different at some loci.This owes to the reason of adapting special environment.

Key words: Rhodiola sachalinensis, Genetic ecology, Allozyme, Genetic variation, Adaption