Sexual interference of the floral kind
Sexual interference of the floral kind
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DOI：
10.1038/sj.hdy.6800020
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发表时间：
2002-02-01
期刊：
影响因子：
3.8
通讯作者：
Barrett, SCH
中科院分区：
文献类型：
--
作者：
Barrett, SCH
花两性畸形导致植物在授粉和交配过程中双亲角色的冲突和妥协。雌雄同体的一个潜在代价是母体和父体功能之间的性干扰，导致配子浪费和适应性降低。性干扰可能与自花授粉有关，也可能与自花授粉无关。在发生自花授粉的情况下，胚珠或花粉折扣可能会减少交配机会。在这里，我描述了开花植物的性干扰的形式，区分是否涉及物理或生化相互作用，以及是否健身成本与配子浪费产生的花内与花间的过程。我回顾性功能之间的干扰有限的实验证据和评估的假设，一些花的适应通常被解释为蚂蚁自交机制可能会提供一种替代功能，减少交配成本所产生的这种形式的性冲突。
Floral hermaphroditism results in conflicts and compromise in the parental roles of plants during pollination and mating. A potential cost of hermaphroditism is sexual interference between maternal and paternal functions resulting in gamete wastage and reduced fitness. Sexual interference may or may not be associated with self-pollination. In cases where self-pollination occurs, ovule or pollen discounting may reduce mating opportunities. Here I describe forms of sexual interference in flowering plants, distinguishing whether physical or biochemical interactions are involved and whether fitness costs associated with gamete wastage arise from intra-floral versus inter-floral processes. I review the limited experimental evidence for interference between sex functions and evaluate the hypothesis that some floral adaptations usually interpreted as ant-selfing mechanisms may serve an alternative function in reducing mating costs arising from this form of sexual conflict.