毛茛科植物交配系统的特征与花期资源分配对策
Characteristics of the mating system and strategies for resource allocation in Ranunculaceae
查看参考文献25篇
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文摘
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以青藏高原东部高寒草甸的毛茛科为对象。研究处于进化树不同的位置8个种（6个属）的交配系统的差异对资源分配对策的影响，发现随着自交率的提高，植物结性分配的投入减小，对花的吸引结构（如花被）的资源分配也减小，表明在个体水平上的结论同样符合性分配理论的预测（指花的水平）‘花期繁殖分配随自交率的增加而降低；并且揭示了物种的系统起源与交配系统的进化、资源分配对策之间的功能联系。 |
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其他语种文摘
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In this paper, the effects of mating system difference on resource allocation strategies of eight different phylogenetic species of six genera in Ranunculaceae were studied and it has been found that plants could reduce the allocation to male function and that attractive structures such as petals could increase the selfing rate. This indicates that the conclusion at the individual level is in agreement with the predications of sex allocation theory (at flower level) and that reproductive allocation in flowering decreased when the selfing rate increased. Furthermore, we revealed the function relationships between plant phylogenies, mating system evolution and resource allocation strategies. |
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来源
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兰州大学学报. 自然科学版
,2003,39(5):70-74 【核心库】
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关键词
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交配系统
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生活史对策
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繁殖分配
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性分配
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地址
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兰州大学, 干旱农业生态国家重点实验室, 甘肃, 兰州, 730000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0455-2059 |
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学科
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植物学 |
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基金
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甘肃省“九五”科技攻关重点项目
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文献收藏号
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CSCD:1198416
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