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首页> 外文会议>Proceedings of the international conference on germplasm of ornamentals >Genetic Diversity and Ex Situ Conservation ofSinocalycanthus chinensis
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Genetic Diversity and Ex Situ Conservation ofSinocalycanthus chinensis

机译：中华蜡梅的遗传多样性和迁地保护

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摘要

Sinocalycanthus chinensis, a deciduous shrub of Calycanthaceae, is an endangered species endemic to eastern China.ISSR markers were applied to investigate the genetic diversity of natural populations and the ex situ population, so as to evaluate the efficiency of ex situ conservation.The percentage of polymorphic bands (PPB) for natural population and ex situ population of S.chinensis was 63.86 and 57.83％ respectively, the Nei's gene diversity (h) 0.1713 and 0.1727, and the Shannon diversity index (Ⅰ) 0.2687 and 0.2668.AMOVA showed that 31.21％ of genetic variation occurred among natural populations, indicating genetic variation mainly existed within population.T-test revealed that the genetic diversity levels were not significantly different between natural populations and the ex situ population (p>0.01), suggesting the effectiveness of ex situ population for conserving genetic diversity of the plant species.The sampling strategy for ex sitn genetic conservation was also discussed.
机译：中华草科的一种落叶灌木华夏草（Cinocalycanthus chinensis）是中国东部特有的一种濒临灭绝的物种.ISSR标记用于研究自然种群和非原生境种群的遗传多样性，以评估非原生境保存的效率。中华natural自然种群和迁地种群的多态性谱带（PPB）分别为63.86和57.83％，Nei基因多样性（h）为0.1713和0.1727，香农多样性指数（Ⅰ）为0.2687和0.2668。AMOVA显示为31.21。遗传变异的百分比发生在自然种群中，说明遗传变异主要存在于种群中。T检验表明，自然种群与异地种群之间的遗传多样性水平差异不显着（p> 0.01），表明异地种群的有效性。为了保护植物物种的遗传多样性，本文还讨论了种群外遗传保护的采样策略。

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