A missing link: Connecting plant and pollinator population structure
A missing link: Connecting plant and pollinator population structure
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缺失的环节：连接植物和传粉媒介种群结构
DOI：
10.1002/ajb2.1844
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发表时间：
2022
影响因子：
3
通讯作者：
Hopkins, Robin
中科院分区：
文献类型：
--
作者：
Burgin, Grace;Hopkins, Robin
大量的经验证据强调了植物-传粉者相互作用在开花植物进化中的重要性。例如，有许多情况下，花的性状和多样化率之间的2个协会，花的3个字符的组合在不相关的群体中使用类似的传粉者类型的平行进化（凯和萨金特，4 2009年）。这些宏观进化模式突出了传粉者作为选择剂驱动花5性状变异，生殖隔离和多样化。然而，传粉者的作用甚至比这种适应性框架所暗示的更基本-传粉者是关键的传播媒介。许多植物依靠外部媒介传播花粉和种子。数据表明，通过种子的传播通常是有限的，特别是在不适应远距离种子传播的植物中（Ennos，1994）。因此，花粉通过传粉者11的移动代表了等位基因在景观中移动的重要机制（Sork和12 Smouse，2006; Browne和Karubian，2018）。从植物物种形成文献中出现的一个理论模型明确地重新定义了传粉者在植物进化中的作用，包括非适应性人口统计过程，如扩散和基因流动（Loveless和Hamrick，1984; 15 Wessinger，2021）。这种所谓的“花粉传播依赖型物种形成”假说认为，植物已经进化出一系列特征，这些特征可以利用特定的传粉者来增强繁殖能力。当植物适应使用特定的传粉者（例如蜜蜂和18只蜂鸟）来优化繁殖时，它们也会致力于由传粉者的运动行为驱动的花粉介导的基因流模式。例如，高移动性20
A tremendous amount of empirical evidence emphasizes the significance of plant-1 pollinator interactions in flowering plant evolution. For example, there are numerous cases of 2 associations between floral traits and diversification rate, and parallel evolution of floral 3 character combinations in unrelated groups that use similar pollinator types (Kay and Sargent, 4 2009). These macroevolutionary patterns highlight pollinators as selective agents driving floral 5 trait variation, reproductive isolation, and diversification. However, the role of pollinators is even 6 more fundamental to the plant life cycle than this adaptative framework might suggest–7 pollinators are key dispersal agents. 8Many plants rely on external vectors for pollen and seed dispersal. Data suggest that 9 dispersal via seed is often limited, particularly among plants without adaptations for long-10 distance seed dispersal (Ennos, 1994). Therefore, the movement of pollen via pollinators 11 represents a significant mechanism through which alleles move across the landscape (Sork and 12 Smouse, 2006; Browne and Karubian, 2018). One theoretical model emerging from the plant 13 speciation literature explicitly reframes the role of pollinators in plant evolution to include non-14 adaptive demographic processes like dispersal and gene flow (Loveless and Hamrick, 1984; 15 Wessinger, 2021). This so-called ‘pollen-dispersal dependent speciation hyp 16 that plants have evolved suites of traits that enhance reproduction using a specific pollinator 17 type. As plants adapt to optimize reproduction using particular pollinators (eg bees versus 18 hummingbirds), they also commit to the patterns of pollen-mediated gene flow driven by their 19 pollinator’s movement behaviors. For example, highly mobi 20