期刊
NEW PHYTOLOGIST
卷 203, 期 1, 页码 300-309出版社
WILEY
DOI: 10.1111/nph.12782
关键词
environmental cueing; extinction; germination; physiological dormancy; speciation
资金
- National Evolutionary Synthesis Center, National Science Foundation [EF-0905606]
- European Union [MC-IIF-2011-300026 'TEE-OFF']
- Direct For Biological Sciences
- Division Of Environmental Biology [1256792] Funding Source: National Science Foundation
Seed dormancy, by controlling the timing of germination, can strongly affect plant survival. The kind of seed dormancy, therefore, can influence both population and species-level processes such as colonization, adaptation, speciation, and extinction. We used a dataset comprising over 14 000 taxa in 318 families across the seed plants to test hypotheses on the evolution of different kinds of seed dormancy and their association with lineage diversification. We found morphophysiological dormancy to be the most likely ancestral state of seed plants, suggesting that physiologically regulated dormancy in response to environmental cues was present at the origin of seed plants. Additionally, we found that physiological dormancy (PD), once disassociated from morphological dormancy, acted as an 'evolutionary hub' from which other dormancy classes evolved, and that it was associated with higher rates of lineage diversification via higher speciation rates. The environmental sensitivity provided by dormancy in general, and by PD in particular, appears to be a key trait in the diversification of seed plants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据