Epigenetic regulation of bud dormancy events in perennial plants - PubMed (original) (raw)

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Epigenetic regulation of bud dormancy events in perennial plants

Gabino Ríos et al. Front Plant Sci. 2014.

Abstract

Release of bud dormancy in perennial plants resembles vernalization in Arabidopsis thaliana and cereals. In both cases, a certain period of chilling is required for accomplishing the reproductive phase, and several transcription factors with the MADS-box domain perform a central regulatory role in these processes. The expression of DORMANCY-ASSOCIATED MADS-box (DAM)-related genes has been found to be up-regulated in dormant buds of numerous plant species, such as poplar, raspberry, leafy spurge, blackcurrant, Japanese apricot, and peach. Moreover, functional evidence suggests the involvement of DAM genes in the regulation of seasonal dormancy in peach. Recent findings highlight the presence of genome-wide epigenetic modifications related to dormancy events, and more specifically the epigenetic regulation of DAM-related genes in a similar way to FLOWERING LOCUS C, a key integrator of vernalization effectors on flowering initiation in Arabidopsis. We revise the most relevant molecular and genomic contributions in the field of bud dormancy, and discuss the increasing evidence for chromatin modification involvement in the epigenetic regulation of seasonal dormancy cycles in perennial plants.

Keywords: DAM gene; bud dormancy; chilling; chromatin; histone modifications.

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Figures

FIGURE 1

FIGURE 1

General and specific modifications of chromatin in dormant and dormancy-released buds. The following chromatin modifications have been identified in chestnut at the genome level (left), and specifically in the DAM locus in leafy spurge and peach (right): DNA methylation (DNAme), acetylation of histone H4 (H4ac), acetylation of H3 (H3ac), trimethylation of H3 at K4 (H3K4me3), and trimethylation of H3 at K27 (H3K27me3).

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References

    1. Allona I., Ramos A., Ibáñez C., Contreras A., Casado R., Aragoncillo C. (2008). Molecular control of winter dormancy establishment in trees. Span. J. Agric. Res. 6 201–210 10.5424/sjar/200806S1-389 - DOI
    1. Arend M., Schnitzler J. P., Ehlting B., Hänsch R., Lange T., Rennenberg H., et al. (2009). Expression of the Arabidopsis mutant abi1 gene alters abscisic acid sensitivity, stomatal development, and growth morphology in gray poplars. Plant Physiol. 151 2110–2119 10.1104/pp.109.144956 - DOI - PMC - PubMed
    1. Arora R., Rowland L. J., Tanino K. (2003). Induction and release of bud dormancy in woody perennials: a science comes of age. HortScience 38 911–921
    1. Bai S., Saito T., Sakamoto D., Ito A., Fujii H., Moriguchi T. (2013). Transcriptome analysis of Japanese pear (Pyrus pyrifolia Nakai) flower buds transitioning through endodormancy. Plant Cell Physiol. 54 1132–1151 10.1093/pcp/pct067 - DOI - PubMed
    1. Barakat A., Sriram A., Park J., Zhebentyayeva T., Main D., Abbott A. (2012). Genome wide identification of chilling responsive microRNAs in Prunus persica. BMC Genomics 13:481 10.1186/1471-2164-13-481 - DOI - PMC - PubMed

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