The role of sensory drive in floral evolution
The role of sensory drive in floral evolution
复制标题
DOI：
10.1111/nph.16510
复制
发表时间：
2020-05-12
期刊：
影响因子：
9.4
通讯作者：
Koski, Matthew H.
中科院分区：
文献类型：
--
作者：
Koski, Matthew H.
感觉驱动理论认为，通信信号的进化是由接收者的感觉系统和接收信号的环境条件决定的。它激发了大量的研究，促进了我们对动物信号进化和物种形成的理解。在植物中，花信号的极端多样化让生物学家们着迷了一个多世纪。虽然涉及感觉驱动的过程可能在植物与传粉者之间的交流中发挥作用，但该理论尚未在此背景下正式综合。然而，它有尚未开发的潜力来解释不同种群传粉者偏好的潜在变化机制，以及环境条件如何影响花的信号传递和感知。在这里，我开发了一个植物-传粉者相互作用的感官驱动框架，识别与其原始概念的相似和不同之处。然后，我总结了一些研究，这些研究阐明了感官驱动的主要过程--栖息地传递、知觉调节和信号匹配--如何应用于花卉颜色和气味的进化。在整个过程中，我提出了评估感官驱动如何塑造花卉多样性的研究途径和方法。这一框架对于解释现存花卉多样性的模式和研究全球变化下信号条件的变化将如何影响花卉性状的进化轨迹将是重要的。
Sensory drive theory posits that the evolution of communication signals is shaped by the sensory systems of receivers and the habitat conditions under which signals are received. It has inspired an enormous body of research, advancing our understanding of signal evolution and speciation in animals. In plants, the extreme diversification of floral signals has fascinated biologists for over a century. While processes involved in sensory drive probably play out in plant-pollinator communication, the theory has not been formally synthesized in this context. However, it has untapped potential to explain mechanisms underlying variation in pollinator preferences across populations, and how environmental conditions impact floral signal transmission and perception. Here I develop a framework of sensory drive for plant-pollinator interactions, identifying similarities and differences from its original conception. I then summarize studies that shed light on how the primary processes of sensory drive - habitat transmission, perceptual tuning, and signal matching - apply to the evolution of floral color and scent. Throughout, I propose research avenues and approaches to assess how sensory drive shapes floral diversity. This framework will be important for explaining patterns of extant floral diversity and examining how altered signaling conditions under global change will impact the evolutionary trajectory of floral traits.