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The transcriptome of Populus in elevated CO2.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
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2005 (English)In: New Phytologist, ISSN 0028-646X, Vol. 167, no 1, 143-54 p.Article in journal (Refereed) Published
Abstract [en]

The consequences of increasing atmospheric carbon dioxide for long-term adaptation of forest ecosystems remain uncertain, with virtually no studies undertaken at the genetic level. A global analysis using cDNA microarrays was conducted following 6 yr exposure of Populus × euramericana (clone I-214) to elevated [CO2] in a FACE (free-air CO2 enrichment) experiment.

Gene expression was sensitive to elevated [CO2] but the response depended on the developmental age of the leaves, and < 50 transcripts differed significantly between different CO2 environments. For young leaves most differentially expressed genes were upregulated in elevated [CO2], while in semimature leaves most were downregulated in elevated [CO2].

For transcripts related only to the small subunit of Rubisco, upregulation in LPI 3 and downregulation in LPI 6 leaves in elevated CO2 was confirmed by anova. Similar patterns of gene expression for young leaves were also confirmed independently across year 3 and year 6 microarray data, and using real-time RT–PCR.

This study provides the first clues to the long-term genetic expression changes that may occur during long-term plant response to elevated CO2.

Place, publisher, year, edition, pages
2005. Vol. 167, no 1, 143-54 p.
Keyword [en]
Adaptation; Physiological, Atmosphere, Carbon Dioxide/*pharmacology, Expressed Sequence Tags, Gene Expression Profiling, Gene Expression Regulation; Plant/*drug effects, Oligonucleotide Array Sequence Analysis, Populus/*drug effects/*genetics/metabolism, Time Factors
Identifiers
URN: urn:nbn:se:umu:diva-14222DOI: doi:10.1111/j.1469-8137.2005.01450.xPubMedID: 15948837OAI: oai:DiVA.org:umu-14222DiVA: diva2:153893
Available from: 2007-05-24 Created: 2007-05-24 Last updated: 2015-04-29Bibliographically approved

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Sjödin, AndreasSkogström, OskarJansson, Stefan

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CiteExportLink to record
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