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Absence of warmth p...
Absence of warmth permits epigenetic memory of winter in Arabidopsis
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- Hepworth, Jo (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Antoniou-Kourounioti, Rea L. (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Bloomer, Rebecca H. (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Selga, Catja (author)
- Lund University
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- Berggren, Kristina (author)
- Mittuniversitetet,Mid Sweden University,Fakulteten för naturvetenskap, teknik och medier
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- Cox, Deborah (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Collier Harris, Barley R. (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Irwin, Judith A. (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Holm, Svante (author)
- Mittuniversitetet,Mid Sweden University,Avdelningen för naturvetenskap
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- Säll, Torbjörn (author)
- Lund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Molecular Cell Biology,Department of Biology,Faculty of Science
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- Howard, Martin (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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- Dean, Caroline (author)
- John Innes Centre,Norwich Research Park, Norwich, UK
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(creator_code:org_t)
- 2018-02-12
- 2018
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 9:1
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Abstract
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- Plants integrate widely fluctuating temperatures to monitor seasonal progression. Here, we investigate the temperature signals in field conditions that result in vernalisation, the mechanism by which flowering is aligned with spring. We find that multiple, distinct aspects of the temperature profile contribute to vernalisation. In autumn, transient cold temperatures promote transcriptional shutdown of Arabidopsis FLOWERING LOCUS C (FLC), independently of factors conferring epigenetic memory. As winter continues, expression of VERNALIZATION INSENSITIVE3 (VIN3), a factor needed for epigenetic silencing, is upregulated by at least two independent thermosensory processes. One integrates long-term cold temperatures, while the other requires the absence of daily temperatures above 15 °C. The lack of spikes of high temperature, not just prolonged cold, is thus the major driver for vernalisation. Monitoring of peak daily temperature is an effective mechanism to judge seasonal progression, but is likely to have deleterious consequences for vernalisation as the climate becomes more variable.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Hepworth, Jo
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Antoniou-Kouroun ...
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Bloomer, Rebecca ...
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Selga, Catja
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Berggren, Kristi ...
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Cox, Deborah
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show more...
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Collier Harris, ...
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Irwin, Judith A.
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Holm, Svante
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Säll, Torbjörn
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Howard, Martin
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Dean, Caroline
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Botany
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Nature Communica ...
- By the university
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Lund University
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Mid Sweden University