Evolvability of flower geometry: Convergence in pollinator-driven morphological evolution of flowers.
Evolvability of flower geometry: Convergence in pollinator-driven morphological evolution of flowers.
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DOI：
10.1016/j.semcdb.2017.09.028
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发表时间：
2017-10
影响因子：
7.3
通讯作者：
N. Woźniak;A. Sicard
中科院分区：
文献类型：
--
作者：
N. Woźniak;A. Sicard
花代表了植物进化过程中的一项关键创新。在繁殖优化的驱动下，花卉形态的进化对于促进物种多样化至关重要。在大多数情况下，这是通过与动物传粉媒介的专门相互作用以及随后特定形态之间基因流的减少而发生的。虽然辐射导致花朵形状和大小发生巨大变化，但仍可以观察到反复出现的进化模式。在这里，我们讨论传粉媒介驱动的花卉进化的主要趋势所涉及的选择目标。我们回顾了最近关于它们的适应性价值、发育基础和遗传基础的发现，试图更好地理解传粉媒介驱动的花朵进化的重复性质。该分析强调了结构创新如何为表型进化、适应和物种形成提供灵活性。
Flowers represent a key innovation during plant evolution. Driven by reproductive optimization, evolution of flower morphology has been central in boosting species diversification. In most cases, this has happened through specialized interactions with animal pollinators and subsequent reduction of gene flow between specialized morphs. While radiation has led to an enormous variability in flower forms and sizes, recurrent evolutionary patterns can be observed. Here, we discuss the targets of selection involved in major trends of pollinator-driven flower evolution. We review recent findings on their adaptive values, developmental grounds and genetic bases, in an attempt to better understand the repeated nature of pollinator-driven flower evolution. This analysis highlights how structural innovation can provide flexibility in phenotypic evolution, adaptation and speciation.