摘要
自然界千姿百态的花是如何演化而来?前人曾提出花部特征是由当地最频繁的、最有效的传粉者所塑造的观点,但是吸引传粉者的特征也可能吸引植物的敌人——植食动物。花的特征与其他特征一样也经受着环境因子的选择作用。论述了支持花部特征演化的最有效传粉者原则的证据,该原则受到质疑的论点;再从植食作用、环境、传粉后的选择等方面,就花部特征选择的生态因子,列举了一些前人和作者提出的证据,以及需要深入研究的问题。
How do flowers evolve with extremely diverse morphologies？ Stebbins （1970） proposed that floral traits are moulded by local most frequent and effective pollinators. However, characteristics of the flowers that are attractive to pollinators may be susceptible to plant enemies - herbivores. Meanwhile, as other traits of plants, flowers are under selection of physical environments. To illustrate multifactor selection on the evolution of flowers, here I first list experimental evidence in support of （or not） the Most Effective Pollinator Principle. Then, I consider other potential selection from predation, environment and postpollination events on floral evolution through analyzing recent studies from my group and others. Important questions are presented to motivate new ideas in study of floral evolution.
出处
《生命科学》
CSCD
2014年第2期118-124,共7页
Chinese Bulletin of Life Sciences
基金
国家自然科学基金项目(31030016)
关键词
花部特征
传粉者
植食者
环境
多重选择
floral traits
pollinators, floral herbivores
physical environment
multifactor selection
