The evolution of the worldwide leaf economics spectrum

被引:261
作者
Donovan, Lisa A. [1 ]
Maherali, Hafiz [2 ]
Caruso, Christina M. [2 ]
Huber, Heidrun [3 ]
de Kroon, Hans [3 ]
机构
[1] Univ Georgia, Dept Plant Biol, Athens, GA 30602 USA
[2] Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada
[3] Radboud Univ Nijmegen, Inst Water & Wetland Res, Dept Expt Plant Ecol, NL-6500 GL Nijmegen, Netherlands
基金
美国国家科学基金会;
关键词
PLANT PHYSIOLOGICAL TRAITS; NATURAL-SELECTION; ECOPHYSIOLOGICAL TRAITS; GENETIC-VARIATION; PHENOTYPIC PLASTICITY; ARTIFICIAL SELECTION; DIFFERING SELECTION; DROUGHT ADAPTATION; AVENA-BARBATA; IRIS-PUMILA;
D O I
10.1016/j.tree.2010.11.011
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The worldwide leaf economic spectrum (WLES) is a strikingly consistent pattern of correlations among leaf traits. Although the WLES effectively summarizes variation in plant ecological strategies, little is known about its evolution. We reviewed estimates of natural selection and genetic variation for leaf traits to test whether the evolution of the WLES was limited by selection against unfit trait combinations or by genetic constraints. There was significant selection for leaf traits on both ends of the WLES spectrum, as well as significant genetic variation for these traits. In addition, genetic correlations between WLES traits were variable in strength and direction. These data suggest that genetic constraints have had a smaller role than selection in the evolution of the WLES.
引用
收藏
页码:88 / 95
页数:8
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