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71.
An evolutionary perspective on leaf economics: phylogenetics of leaf mass per area in vascular plants 下载免费PDF全文
Olivier Flores Eric Garnier Ian J. Wright Peter B. Reich Simon Pierce Sandra Dìaz Robin J. Pakeman Graciela M. Rusch Maud Bernard‐Verdier Baptiste Testi Jan P. Bakker Renée M. Bekker Bruno E. L. Cerabolini Roberta M. Ceriani Guillaume Cornu Pablo Cruz Matthieu Delcamp Jiri Dolezal Ove Eriksson Adeline Fayolle Helena Freitas Carly Golodets Sylvie Gourlet‐Fleury John G. Hodgson Guido Brusa Michael Kleyer Dieter Kunzmann Sandra Lavorel Vasilios P. Papanastasis Natalia Pérez‐Harguindeguy Fernanda Vendramini Evan Weiher 《Ecology and evolution》2014,4(14):2799-2811
In plant leaves, resource use follows a trade‐off between rapid resource capture and conservative storage. This “worldwide leaf economics spectrum” consists of a suite of intercorrelated leaf traits, among which leaf mass per area, LMA, is one of the most fundamental as it indicates the cost of leaf construction and light‐interception borne by plants. We conducted a broad‐scale analysis of the evolutionary history of LMA across a large dataset of 5401 vascular plant species. The phylogenetic signal in LMA displayed low but significant conservatism, that is, leaf economics tended to be more similar among close relatives than expected by chance alone. Models of trait evolution indicated that LMA evolved under weak stabilizing selection. Moreover, results suggest that different optimal phenotypes evolved among large clades within which extremes tended to be selected against. Conservatism in LMA was strongly related to growth form, as were selection intensity and phenotypic evolutionary rates: woody plants showed higher conservatism in relation to stronger stabilizing selection and lower evolutionary rates compared to herbaceous taxa. The evolutionary history of LMA thus paints different evolutionary trajectories of vascular plant species across clades, revealing the coordination of leaf trait evolution with growth forms in response to varying selection regimes. 相似文献
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Fetal mammary gland differentiation in vitro in response to hormones. I. Morphological findings 总被引:1,自引:0,他引:1
R L Ceriani 《Developmental biology》1970,21(4):506-529
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T Ceriani G Ferrari V Panagia V Perri 《Bollettino della Società italiana di biologia sperimentale》1967,43(23):1666-1669
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Fetal mammary gland differentiation in vitro in response to hormones. II. Biochemical findings 总被引:1,自引:0,他引:1
R L Ceriani 《Developmental biology》1970,21(4):530-546