Acetylated H4 histone and genomic DNA methylation patterns during bud set and bud burst in Castanea sativa

Santamaría, Mª. Estrella; Hasbún, Rodrigo; Valera, Ma José; Meijón, Mónica; Valledor, Luís; Rodrı́guez, José Luis; Toorop, Peter E.; Cañal, Ma Jesús; Rodrı́guez, Roberto

doi:10.1016/j.jplph.2009.02.014

Cited by 99 publications

(80 citation statements)

References 43 publications

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“…Results showed that sexual embryogenesis in the chestnut occurs with specific increases and decreases in DNA methylation levels as demonstrated for different developmental processes in animals (Ikegami et al 2009) and in plants (Santamaría et al 2009). …”

Section: Discussionmentioning

confidence: 91%

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DNA methylation during sexual embryogenesis and implications on the induction of somatic embryogenesis in Castanea sativa Miller

et al. 2010

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From anthesis to mature seed formation, burrs from cross-pollinated adult Castanea sativa Miller trees were characterized and seven developmental stages defined based on macro and micromorphological traits. In order to get an insight into the involvement of epigenetic mechanisms in sexual embryogenesis and to define somatic embryogenesis induction capability, global DNA methylation and the somatic embryogenic competence were quantified. On cross-pollinated trees once fertilization takes place, at least one ovule per ovary becomes dominant, and transient DNA demethylation occurs coinciding with the start of the sexual embryogenic programme. Unfertilized ovules from the same cluster, which maintain their prior size, increase their methylation level and undergo degeneration. These results were validated using non-cross-pollinated trees and the asynchrony of flower receptivity. When testing in vitro somatic embryogenesis response of isolated dominant ovules and axes from zygotic embryos under cross-pollinated conditions, the highest competence was found for reaching seed maturity. Thus, a "developmental window" of somatic embryogenesis in chestnut has been characterized. It includes from fertilization to embryo maturity, and a transient decrease in methylation is necessary after fertilization for the development of the somatic embryogenesis response.

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Section: Discussionmentioning

confidence: 91%

“…In chestnut, changes in genomic methylation levels were also found during the different stages of bud development (dormancy, burst and growth) (Santamaría et al 2009) and during phase change .…”

Section: Discussionmentioning

confidence: 98%

DNA methylation during sexual embryogenesis and implications on the induction of somatic embryogenesis in Castanea sativa Miller

et al. 2010

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“…Higher global DNA methylation levels and lower histone H4 acetylation are found in dormant buds of chestnut (Castanea sativa), suggesting an overall silencing of gene expression during dormancy (Santamaría et al 2009). Similar results have been obtained when comparing DNA methylation and histone acetylation in dormant and growing tissues of poplar (Conde et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide changes in histone H3 lysine 27 trimethylation associated with bud dormancy release in peach

Fuente

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Lloret

et al. 2015

Tree Genetics & Genomes

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Bud dormancy is an evolutionary adaptation of perennial plants to the seasonal fluctuation of temperatures in temperate climates, affected by intrinsic and environmental signals. Recent investigations point to a relevant role of epigenetic mechanisms in the regulation of bud dormancy. We have performed a chromatin immunoprecipitation sequencing (ChIP-seq) analysis of histone H3 lysine-27 trimethylation (H3K27me3), a chromatin mark associated with stable gene silencing, in dormant (D) and dormancy-released (ND) buds of peach (Prunus persica). H3K27me3 regions were more abundant in gene-rich euchromatic zones of chromosomes and associated with gene bodies. The dormancy regulators DORMANCY-ASSOCIATED MADS-box (DAM)1, DAM4, DAM5 and DAM6 were found significantly enriched in H3K27me3 in ND samples, in close agreement with their dormancy-specific expression. The DAM locus was modified at specific short regions, allowing the uneven regulation of distinct DAM genes. Additional regulatory factors related to meristem activity and flowering genes from Arabidopsis thaliana were differentially H3K27 trimethylated, which suggests that meristem reactivation and flower development could be also epigenetically regulated in reproductive buds of peach. A (GA)n motif and CACTA-type transposon-related sequences were found over-represented in H3K27me3 regions.

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“…There is also abundant evidence for the participation of DNA methylation or covalent modifications of histones in developmental processes and ontogeny (Fraga et al 2002;Santamaria et al 2009;Valledor et al 2007); however, in this case the durability of epigenetic marking and its transferability across generations is questionable.…”

Section: Hitherto Knowledge Of Epigenetic Variation In Treesmentioning

confidence: 99%

Epigenetic memory effects in forest trees: a victory of “Michurinian biology”?

Gömöry¹,

Hrivnák²,

Krajmerová³

et al. 2017

Central European Forestry Journal

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The study reviews trait inheritance, which is in contradiction with the rules of Mendelian genetics, and which was object of controversies among biologists (sometimes with grave political consequences) in the USSR and Sovietcontrolled countries in the 1930s-1960s. "Carryover" or "memory" effects of the climate, to which maternal trees are exposed during seed development, on phenological behavior and other adaptively relevant traits of their offspring in conifers are mentioned; similar effects are associated with the germination and early growth environment. Molecular mechanisms underlying these effects include covalent modifications of DNA or DNA-associated proteins (cytosine methylation, various types of histone modifications), micro-RNAs and small interfering RNAs. Tools for the identification of these modifications are reviewed with a focus on cytosine methylation, along with an overview of the hitherto knowledge on the occurrence of DNA modifications in forest trees. The practical implications of epigenetic inheritance in forest trees are discussed with the focus on the adaptation to climate change and legislation on forest reproductive materials.

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Acetylated H4 histone and genomic DNA methylation patterns during bud set and bud burst in Castanea sativa

Cited by 99 publications

References 43 publications

DNA methylation during sexual embryogenesis and implications on the induction of somatic embryogenesis in Castanea sativa Miller

DNA methylation during sexual embryogenesis and implications on the induction of somatic embryogenesis in Castanea sativa Miller

Genome-wide changes in histone H3 lysine 27 trimethylation associated with bud dormancy release in peach

Epigenetic memory effects in forest trees: a victory of “Michurinian biology”?

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