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生物通
20 天
华南植物园揭示报春花属植物花粉-胚珠数目的变异模式及影响因素
报春花是典型的虫媒花和二型花柱物种,在群体中有两种花型,在雌雄器官高度上相互异位。二型花柱特性能够促进花粉精确传递并且促进异交,是研究花多态性平衡选择和有性生殖资源分配的模式。此外,二型花柱还会演化为能够主动自花传粉的同型花柱类型。
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