| 高山红景天（Rhodiola sachalinensis）遗传变异及其濒危机制的探讨 |
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| 引用本文： | 祖元刚,颜廷芬.高山红景天（Rhodiola sachalinensis）遗传变异及其濒危机制的探讨[J].植物研究,1998,18(3):304-310. |
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| 作者姓名： | 祖元刚 颜廷芬 |
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| 作者单位： | 东北林业大学森林植物生态学开放研究实验室 |
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| 基金项目： | 国家教委跨世纪优秀人才培养计划基金,黑龙江省杰出青年科学基金 |
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| 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（从态位点百分比为３０．５５％，等位基因平均数为１．３３３）但不是很丰富，主要是该种类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
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| 关 键 词： | 高山红景天 遗传生态学 等位酶 遗传变异 适应 |
A PRELIMINART STUDY ON GENETIC VARIATION AND ENDANGERED MECHANISM OF RHODIOLA SACHALINENSIS NATURAL POPULATION |
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| Zu Yuan-gang,Yan Ting-fen,Zhou Fu-jun.A PRELIMINART STUDY ON GENETIC VARIATION AND ENDANGERED MECHANISM OF RHODIOLA SACHALINENSIS NATURAL POPULATION[J].Bulletin of Botanical Research,1998,18(3):304-310. |
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| Authors: | Zu Yuan-gang Yan Ting-fen Zhou Fu-jun |
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| 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. |
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| Keywords: | Rhodiola sachalinensis Genetic ecology Allozyme Genetic variation Adaption |
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