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  • Title: Evolvability of flower geometry: Convergence in pollinator-driven morphological evolution of flowers.
    Author: Woźniak NJ, Sicard A.
    Journal: Semin Cell Dev Biol; 2018 Jul; 79():3-15. PubMed ID: 28941876.
    Abstract:
    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.
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