Absence of warmth permits epigenetic memory of winter in Arabidopsis

Hepworth, Jo (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Antoniou-Kourounioti, Rea L. (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Bloomer, Rebecca H. (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Berggren, Kristina (författare): Mittuniversitetet,Mid Sweden University,Fakulteten för naturvetenskap, teknik och medier

Cox, Deborah (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Collier Harris, Barley R. (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Irwin, Judith A. (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Holm, Svante (författare): Mittuniversitetet,Mid Sweden University,Avdelningen för naturvetenskap

Säll, Torbjörn (författare): Lund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Molecular Cell Biology,Department of Biology,Faculty of Science

Howard, Martin (författare): John Innes Centre,Norwich Research Park, Norwich, UK

Dean, Caroline (författare): John Innes Centre,Norwich Research Park, Norwich, UK

(creator_code:org_t)

2018-02-12
2018
Engelska.
Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 9:1

Relaterad länk:: http://dx.doi.org/10... (free); visa fler...; https://www.nature.c...; https://doi.org/10.1...; https://miun.diva-po... (primary) (Raw object); https://lup.lub.lu.s...; https://doi.org/10.1...; https://urn.kb.se/re...; visa färre...

Abstract Ämnesord

Stäng

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.

Av författaren/redakt...: Hepworth, Jo; Antoniou-Kouroun ...; Bloomer, Rebecca ...; Selga, Catja; Berggren, Kristi ...; Cox, Deborah; visa fler...; Collier Harris, ...; Irwin, Judith A.; Holm, Svante; Säll, Torbjörn; Howard, Martin; Dean, Caroline; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.