77 results found
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Natural variation in autumn expression is the major adaptive determinant distinguishing Arabidopsis FLC haplotypes

    Jo Hepworth, Rea L Antoniou-Kourounioti ... Caroline Dean
    Variation in autumnal expression from starting expression levels and initial cold-down-regulation, rather than epigenetic silencing, is the major field variable conferred by worldwide haplotypes of the floral repressor gene, FLC.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Local chromatin environment of a Polycomb target gene instructs its own epigenetic inheritance

    Scott Berry, Matthew Hartley ... Martin Howard
    Two copies of a Polycomb target gene in the same cell can be maintained in independently heritable expression states, demonstrating that long-term memory of gene expression is stored locally.
    Short Report Updated
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    1. Ecology
    2. Plant Biology

    Seasonal shift in timing of vernalization as an adaptation to extreme winter

    Susan Duncan, Svante Holm ... Caroline Dean
    An adaptation to extreme winter has involved a shift to autumn temperature monitoring.
    Short Report Updated
    Formats available:
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    1. Physics of Living Systems

    Hybrid protein assembly-histone modification mechanism for PRC2-based epigenetic switching and memory

    Cecilia Lövkvist, Pawel Mikulski ... Martin Howard
    Extra protein memory storage elements with positive feedbacks, in addition to histone modifications, can explain epigenetic switching and memory at the PRC2 target gene FLOWERING LOCUS C (FLC).
    1. Plant Biology

    Flowering time and seed dormancy control use external coincidence to generate life history strategy

    Vicki Springthorpe, Steven Penfield
    Models of plant behaviour show that flowering early in a warming world is an adaptive strategy to insulate progeny seed behaviour from the affects of climate change.
    1. Ecology
    2. Plant Biology

    Natural genetic variation in Arabidopsis thaliana defense metabolism genes modulates field fitness

    Rachel Kerwin, Julie Feusier ... Daniel J Kliebenstein
    Environmental heterogeneity may contribute to the high levels of genetic variation in glucosinolate genes found in Arabidopsis thaliana.
    1. Plant Biology

    Natural haplotypes of FLM non-coding sequences fine-tune flowering time in ambient spring temperatures in Arabidopsis

    Ulrich Lutz, Thomas Nussbaumer ... Claus Schwechheimer
    Gene expression changes associated with polymorphisms in non-coding sequences of the flowering time regulator FLM directly influence flowering time in ambient temperature in Arabidopsis over an extended vegetative period.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Vernalization-triggered expression of the antisense transcript COOLAIR is mediated by CBF genes

    Myeongjune Jeon, Goowon Jeong ... Ilha Lee
    CBFs, the central regulators of low-temperature signaling, have a function to directly activate the expression of COOLAIR, an antisense RNA of FLC, during vernalization process, but COOLAIR is not required for the vernalization response.
    1. Cell Biology
    2. Plant Biology

    Natural variation reveals that intracellular distribution of ELF3 protein is associated with function in the circadian clock

    Muhammad Usman Anwer, Eleni Boikoglou ... Seth Jon Davis
    In Arabidopsis, a natural variant of the ELF3 protein, which originated in Central Asia, is less likely to accumulate in the nucleus, and causes the circadian clock to run faster and be less responsive to environmental cues.
    1. Plant Biology

    A florigen paralog is required for short-day vernalization in a pooid grass

    Daniel Woods, Yinxin Dong ... Richard Amasino
    In Brachypodiumdistachyon, a single locus accounts for natural variation in whether perception of short day-lengths confers competence to flower.

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