期刊
TRENDS IN PLANT SCIENCE
卷 22, 期 4, 页码 278-288出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2016.11.004
关键词
-
资金
- Australian Research Council [DP12013389, DP130103029]
Fire as a major evolutionary force has been disputed because it is considered to lack supporting evidence. If a trait has evolved in response to selection by fire then the environment of the plant must have been fire-prone before the appearance of that trait. Using outcomes of trait assignments applied to molecular phylogenies for fire-stimulated flowering, seed-release, and germination, in this Opinion article we show that fire-proneness precedes, or rarely coincides with, the evolution of these fire-adapted traits. In addition, fire remains central to understanding germination promoted by smoke among species occurring in non-fire-prone environments because of the historical association of their clade with fire. Fire-mimicking selection and associated exaptations have no place in understanding the evolution of fire-adapted traits because we find no support for any reversal in the fire-trait sequence through time.
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