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Phenotypic Plasticity of Leaf Shape along a Temperature Gradient in Acer rubrum

Royer, Dana L ; Meyerson, Laura A ; Robertson, Kevin M ; Adams, Jonathan M Beerling, David

PloS one, 2009-10, Vol.4 (10), p.e7653 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Phenotypic Plasticity of Leaf Shape along a Temperature Gradient in Acer rubrum
Autor: Royer, Dana L ; Meyerson, Laura A ; Robertson, Kevin M ; Adams, Jonathan M
Beerling, David
Assuntos: Acer - physiology ; Acer rubrum ; air temperature ; Alismataceae ; Aquatic plants ; Asteraceae ; Botany ; Climate ; Climate Change ; climatic factors ; Coastal plains ; Confidence intervals ; Crataegus monogyna ; Dissection ; Ecology/Plant-Environment Interactions ; Ecosystem ; Ecosystems ; Ecotypes ; Environment ; Environmental changes ; Evolutionary Biology/Evolutionary Ecology ; Evolutionary Biology/Paleontology ; Florida ; Fossils ; geographical variation ; Global temperature changes ; leaf shape ; leaf size ; Leaves ; Morphology ; Paleobotany ; Paleoclimate ; Paleoclimates ; Phenotype ; Phenotypic plasticity ; Photosynthesis - physiology ; Plant Biology/Plant-Environment Interactions ; Plant Leaves - physiology ; plant morphology ; Plant sciences ; Plant Transpiration ; Plastic properties ; Plasticity ; provenance ; Quercus kelloggii ; Rhode Island ; Sagittaria latifolia ; Seeds - metabolism ; Studies ; Taxonomy ; Teeth ; Temperature ; Temperature effects ; Temperature gradient ; Temperature gradients ; Temperature range ; Wetlands
É parte de: PloS one, 2009-10, Vol.4 (10), p.e7653
Notas: http://dx.doi.org/10.1371/journal.pone.0007653
Analyzed the data: DR. Wrote the paper: DR LM. Sampled leaves: KR DR. Designed and maintained the gardens: LM KR. Designed the gardens: JA.
Descrição: Both phenotypic plasticity and genetic determination can be important for understanding how plants respond to environmental change. However, little is known about the plastic response of leaf teeth and leaf dissection to temperature. This gap is critical because these leaf traits are commonly used to reconstruct paleoclimate from fossils, and such studies tacitly assume that traits measured from fossils reflect the environment at the time of their deposition, even during periods of rapid climate change. We measured leaf size and shape in Acer rubrum derived from four seed sources with a broad temperature range and grown for two years in two gardens with contrasting climates (Rhode Island and Florida). Leaves in the Rhode Island garden have more teeth and are more highly dissected than leaves in Florida from the same seed source. Plasticity in these variables accounts for at least 6–19 % of the total variance, while genetic differences among ecotypes probably account for at most 69–87 %. This study highlights the role of phenotypic plasticity in leaf-climate relationships. We suggest that variables related to tooth count and leaf dissection in A. rubrum can respond quickly to climate change, which increases confidence in paleoclimate methods that use these variables.
Editor: United States: Public Library of Science
Idioma: Inglês

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Phenotypic Plasticity of Leaf Shape along a Temperature Gradient in Acer rubrum

Royer, Dana L ; Meyerson, Laura A ; Robertson, Kevin M ; Adams, Jonathan M Beerling, David

United States: Public Library of Science

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