Absence of warmth permits epigenetic memory of winter in Arabidopsis

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Absence of warmth permits epigenetic memory of winter in Arabidopsis. / Hepworth, Jo; Antoniou-Kourounioti, Rea L.; Bloomer, Rebecca H.; Selga, Catja; Berggren, Kristina; Cox, Deborah; Collier Harris, Barley R.; Irwin, Judith A.; Holm, Svante; Säll, Torbjörn; Howard, Martin; Dean, Caroline.

I: Nature Communications, Vol. 9, Nr. 1, 639, 01.12.2018.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Hepworth, J, Antoniou-Kourounioti, RL, Bloomer, RH, Selga, C, Berggren, K, Cox, D, Collier Harris, BR, Irwin, JA, Holm, S, Säll, T, Howard, M & Dean, C 2018, 'Absence of warmth permits epigenetic memory of winter in Arabidopsis', Nature Communications, vol. 9, nr. 1, 639. https://doi.org/10.1038/s41467-018-03065-7

APA

Hepworth, J., Antoniou-Kourounioti, R. L., Bloomer, R. H., Selga, C., Berggren, K., Cox, D., ... Dean, C. (2018). Absence of warmth permits epigenetic memory of winter in Arabidopsis. Nature Communications, 9(1), [639]. https://doi.org/10.1038/s41467-018-03065-7

CBE

Hepworth J, Antoniou-Kourounioti RL, Bloomer RH, Selga C, Berggren K, Cox D, Collier Harris BR, Irwin JA, Holm S, Säll T, Howard M, Dean C. 2018. Absence of warmth permits epigenetic memory of winter in Arabidopsis. Nature Communications. 9(1). https://doi.org/10.1038/s41467-018-03065-7

MLA

Vancouver

Hepworth J, Antoniou-Kourounioti RL, Bloomer RH, Selga C, Berggren K, Cox D et al. Absence of warmth permits epigenetic memory of winter in Arabidopsis. Nature Communications. 2018 dec 1;9(1). 639. https://doi.org/10.1038/s41467-018-03065-7

Author

Hepworth, Jo ; Antoniou-Kourounioti, Rea L. ; Bloomer, Rebecca H. ; Selga, Catja ; Berggren, Kristina ; Cox, Deborah ; Collier Harris, Barley R. ; Irwin, Judith A. ; Holm, Svante ; Säll, Torbjörn ; Howard, Martin ; Dean, Caroline. / Absence of warmth permits epigenetic memory of winter in Arabidopsis. I: Nature Communications. 2018 ; Vol. 9, Nr. 1.

RIS

TY - JOUR

T1 - Absence of warmth permits epigenetic memory of winter in Arabidopsis

AU - Hepworth, Jo

AU - Antoniou-Kourounioti, Rea L.

AU - Bloomer, Rebecca H.

AU - Selga, Catja

AU - Berggren, Kristina

AU - Cox, Deborah

AU - Collier Harris, Barley R.

AU - Irwin, Judith A.

AU - Holm, Svante

AU - Säll, Torbjörn

AU - Howard, Martin

AU - Dean, Caroline

PY - 2018/12/1

Y1 - 2018/12/1

N2 - 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.

AB - 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.

U2 - 10.1038/s41467-018-03065-7

DO - 10.1038/s41467-018-03065-7

M3 - Article

VL - 9

JO - Nature Communications

T2 - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 639

ER -