期刊
TRENDS IN ECOLOGY & EVOLUTION
卷 36, 期 6, 页码 507-519出版社
CELL PRESS
DOI: 10.1016/j.tree.2021.01.011
关键词
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资金
- Israel Science Foundation [336/2016]
- Zuckerman STEM postdoctoral fellowship
Natural selection acts on phenotypic trait variation, with flower color being one of the most conspicuous and diverse traits. Variation can be maintained through balancing selection, frequency-dependent selection, or other mechanisms. Investigating these mechanisms can provide important insights into the evolutionary drivers of trait variation.
Natural selection acts on phenotypic trait variation. Understanding the mechanisms that create and maintain trait variation is fundamental to understanding the breadth of diversity seen on Earth. Flower colour is among the most conspicuous and highly diverse traits in nature. Most flowering plant populations have uniform floral colours, but a minority exhibit within-population colour variation, either discrete (polymorphic) or continuous. Colour variation is commonly maintained by balancing selection through multiple pollinators, opposing selection regimes, or fluctuating selection. Variation can also be maintained by heterozygote advantage or frequency-dependent selection. Neutral processes, or a lack of selection, may maintain variation, although this remains largely untested. We suggest several prospective research directions that may provide insight into the evolutionary drivers of trait variation.
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