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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2007.02346.x
|2 doi
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|a DE-627
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|a eng
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|a Holliday, Jason A
|e verfasserin
|4 aut
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|a Global monitoring of autumn gene expression within and among phenotypically divergent populations of Sitka spruce (Picea sitchensis)
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.04.2008
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|a Date Revised 16.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Cold acclimation in conifers is a complex process, the timing and extent of which reflects local adaptation and varies widely along latitudinal gradients for many temperate and boreal tree species. Despite their ecological and economic importance, little is known about the global changes in gene expression that accompany autumn cold acclimation in conifers. Using three populations of Sitka spruce (Picea sitchensis) spanning the species range, and a Picea cDNA microarray with 21,840 unique elements, within- and among-population gene expression was monitored during the autumn. Microarray data were validated for selected genes using real-time PCR. Similar numbers of genes were significantly twofold upregulated (1257) and downregulated (967) between late summer and early winter. Among those upregulated were dehydrins, pathogenesis-related/antifreeze genes, carbohydrate and lipid metabolism genes, and genes involved in signal transduction and transcriptional regulation. Among-population microarray hybridizations at early and late autumn time points revealed substantial variation in the autumn transcriptome, some of which may reflect local adaptation. These results demonstrate the complexity of cold acclimation in conifers, highlight similarities and differences to cold tolerance in annual plants, and provide a solid foundation for functional and genetic studies of this important adaptive process
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ralph, Steven G
|e verfasserin
|4 aut
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|a White, Richard
|e verfasserin
|4 aut
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|a Bohlmann, Jörg
|e verfasserin
|4 aut
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|a Aitken, Sally N
|e verfasserin
|4 aut
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|i Enthalten in
|t The New phytologist
|d 1979
|g 178(2008), 1 vom: 15., Seite 103-122
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|x 1469-8137
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|g volume:178
|g year:2008
|g number:1
|g day:15
|g pages:103-122
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|u http://dx.doi.org/10.1111/j.1469-8137.2007.02346.x
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