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Elevated CO2 will not select for enhanced growth in white spruce despite genotypic variation in response
Mycroft, Erin E.1; Zhang, Junyan1,2; Adams, Greg3; Reekie, Ed1
Corresponding AuthorReekie, Ed
2009
Source PublicationBASIC AND APPLIED ECOLOGY
ISSN1439-1791
Volume10Issue:4Pages:349-357
SubtypeArticle
AbstractThe effect of elevated atmospheric CO2 on plant growth has been well-documented in the literature. However, few Studies have quantified intra-specific genetic variation in growth response, and the potential for natural and artificial selection to act upon this variation. This Study examined intra-specific variation in growth response to elevated CO2 In 29 genotypes of white spruce (Picea glauca), a widely distributed and economically important species of the boreal forest region in North America. Trees were exposed to either ambient (370 mu L L-1) or twice-ambient CO2 (740 mu L L-1). The opportunity for selection (i.e. the relative variation in fitness) was determined Lit low and high CO2 levels with size as a measure or fitness and heritability of this variation determined. There was considerable variation among the genotypes in size and response to elevated CO2. The increase in mass Lit elevated CO2 ranged from 23% to 108% depending upon genotype. In spite of this variation, the genetic correlation between the two environments approached unity, as genotype variance was Much greater than the genotype x CO2 variance. Elevated CO2 had no effect on heritability of the size-related traits we examined, and either had no effect on opportunity for selection, or decreased it. We conclude that selection at elevated atmospheric CO2 is unlikely to increase mean plant size in White Spruce beyond that observed for present day populations grown Lit elevated CO2, despite the substantial genetic variation in CO2 response displayed by this species. (C) 2008 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.
KeywordAdaptation Global Change Carbon Sequestration Genotype x Environment Interactions Boreal Forest Picea Glauca (Moench (Voss))
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.baae.2008.08.005
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordATMOSPHERIC CO2 ; GENETIC-VARIATION ; POPULUS-TREMULOIDES ; FOREST ECOSYSTEMS ; CARBON-DIOXIDE ; BOREAL FOREST ; BLACK SPRUCE ; ARABIDOPSIS ; TEMPERATURE ; GERMINATION
Language英语
Quartile3区
TOP
WOS SubjectEcology
WOS IDWOS:000267480200007
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10559
Collection成都山地所知识仓储(2009年以前)
Affiliation1.Acadia Univ, Dept Biol, Wolfville, NS B4P 2R6, Canada
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.JD Irving Ltd, Sussex E, NB E4G 2V5, Canada
Recommended Citation
GB/T 7714
Mycroft, Erin E.,Zhang, Junyan,Adams, Greg,et al. Elevated CO2 will not select for enhanced growth in white spruce despite genotypic variation in response[J]. BASIC AND APPLIED ECOLOGY,2009,10(4):349-357.
APA Mycroft, Erin E.,Zhang, Junyan,Adams, Greg,&Reekie, Ed.(2009).Elevated CO2 will not select for enhanced growth in white spruce despite genotypic variation in response.BASIC AND APPLIED ECOLOGY,10(4),349-357.
MLA Mycroft, Erin E.,et al."Elevated CO2 will not select for enhanced growth in white spruce despite genotypic variation in response".BASIC AND APPLIED ECOLOGY 10.4(2009):349-357.
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