气候变化领域集成服务门户(CCPortal): C4 photosynthesis evolved in warm climates but promoted migration to cooler ones

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DOI	10.1111/ele.12905
	C4 photosynthesis evolved in warm climates but promoted migration to cooler ones
	Watcharamongkol T.; Christin P.-A.; Osborne C.P.
发表日期	2018
ISSN	1461023X
卷号	21 期号:3
英文摘要	C4 photosynthesis is considered an adaptation to warm climates, where its functional benefits are greatest and C4 plants achieve their highest diversity and dominance. However, whether inherent physiological barriers impede the persistence of C4 species in cool environments remains debated. Here, we use large grass phylogenetic and geographical distribution data sets to test whether (1) temperature influences the rate of C4 origins, (2) photosynthetic types affect the rate of migration among climatic zones, and (3) C4 evolution changes the breadth of the temperature niche. Our analyses show that C4 photosynthesis in grasses originated in tropical climates, and that C3 grasses were more likely to colonise cold climates. However, migration rates among tropical and temperate climates were higher in C4 grasses. Therefore, while the origins of C4 photosynthesis were concentrated in tropical climates, its physiological benefits across a broad temperature range expanded the niche into warmer climates and enabled diversification into cooler environments. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Adaptation; C4 photosynthesis; climate; evolution; phylogeny; temperature niche
语种	英语
scopus关键词	Poaceae; acclimatization; photosynthesis; phylogeny; plant; plant physiology; Poaceae; temperature; Acclimatization; Photosynthesis; Phylogeny; Plant Physiological Phenomena; Plants; Poaceae; Temperature
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121359
作者单位	Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, United Kingdom
推荐引用方式 GB/T 7714	Watcharamongkol T.,Christin P.-A.,Osborne C.P.. C4 photosynthesis evolved in warm climates but promoted migration to cooler ones[J],2018,21(3).
APA	Watcharamongkol T.,Christin P.-A.,&Osborne C.P..(2018).C4 photosynthesis evolved in warm climates but promoted migration to cooler ones.Ecology Letters,21(3).
MLA	Watcharamongkol T.,et al."C4 photosynthesis evolved in warm climates but promoted migration to cooler ones".Ecology Letters 21.3(2018).