DNA methylation of tapetum cells during microsporogenesis in Malus domestica Borkh.

Forino, Laura Maria Costantina; Andreucci, Andrea; Tredici, Ilaria Del; Felici, Cristiana; Giraldi, Enrico; Tagliasacchi, A. M.

doi:10.1560/8thy-k0p8-4v15-qchq

Cited by 6 publications

(4 citation statements)

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“…Similar effects on root anatomy have been pointed out in other plant systems following cadmium exposure (for a recent erudite review see [18]), in Arabidopsis Cu-treated seedlings [19] and in Malus immature fruits in which precocious cell differentiation was related to both developmental and environmental stress [20,21]. Our results also show that 250-334 M of As induce an increase in the frequency and in the length of root hairs.…”

Section: Discussionsupporting

confidence: 87%

Arsenic-induced morphogenic response in roots of arsenic hyperaccumulator fern Pteris vittata

Forino

Castiglione

Bartoli

et al. 2012

Journal of Hazardous Materials

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Section: Discussionsupporting

confidence: 87%

Arsenic-induced morphogenic response in roots of arsenic hyperaccumulator fern Pteris vittata

Forino

Castiglione

Bartoli

et al. 2012

Journal of Hazardous Materials

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“…It is hypothesized that the increase in DNA methylation and its differentiated pattern in the degenerating synergid of Malus may be one of the factors responsible for the phenomenon of senescence of this cell (Tagliasacchi et al, 2007). DNA methylation seems to increase with the senescence in certain plant tissues which are determinant in specific phases of plant development; as it has been observed in the suspensor cells of Phaseolus coccineus (Andreucci et al, 1994;Pierotti et al, 1998) and in the tapetum of Malus domestica (Forino et al, 2003). The high level of DNA methylation in these cells may be able to enhance processes biosynthetic genes and the transcription factor MYB10.…”

Section: Fertilization and Perpetuation (Synergids And Desiccated Seeds)mentioning

confidence: 82%

The Role of DNA Methylation in Perennial Plants

Basdeki

Hagidimitriou

2019

Not Sci Biol

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DNA methylation is an important epigenetic modification of the genome in all organisms. This review presents the effect of DNA methylation in perennial fruit trees such as chestnut, apple, peach etc. In particular, DNA methylation has been shown to affect bud dormancy, the changes of developmental stages such as: flowering, the synthesis of anthocyanins, among other flavonoid compounds; it also affects the fertilization and perpetuation of many fruit trees. Finally, DNA methylation can be used as a tool for investigating the epigenetic diversity of a species.

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“…MBD11 is a member of the MBD family, and Arabidopsis plants with inhibited AtMBD11 display a phenotype of reduced fertility and abnormal leaf and flower development [ 11 ]. Remarkably, DNA methylation also participates in the processes of anther development in Malus and tobacco, including tapetum differentiation and tapetum PCD [ 23 , 24 ]. The expression levels of C5-MTase and MBD genes showed obvious tissue-specificity in tomato and strawberry, respectively, and play different functions in plant growth and development [ 10 , 55 ].…”

Section: Discussionmentioning

confidence: 99%

“…When tapetum cells are active, the DNA methylation level is low; however, as the tapetum enters the degradation stage, the DNA methylation level begins to increase, and reaches its highest level during the tapetum PCD stage [ 23 ]. In Malus , the level of DNA methylation was found to be increased during the anther developmental process, and highly modified DNA methylation is a characteristic of tapetum differentiation [ 24 ]. The genes NtMET1 and BnMET1 are members of the C5-MTase family, and they participate in the developmental processes from microspore to early pollen.…”

Section: Introductionmentioning

confidence: 99%

Exploration of the Potential Transcriptional Regulatory Mechanisms of DNA Methyltransferases and MBD Genes in Petunia Anther Development and Multi-Stress Responses

Shi

Shen

Liu

et al. 2022

Genes

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Cytosine-5 DNA methyltransferases (C5-MTases) and methyl-CpG-binding-domain (MBD) genes can be co-expressed. They directly control target gene expression by enhancing their DNA methylation levels in humans; however, the presence of this kind of cooperative relationship in plants has not been determined. A popular garden plant worldwide, petunia (Petunia hybrida) is also a model plant in molecular biology. In this study, 9 PhC5-MTase and 11 PhMBD proteins were identified in petunia, and they were categorized into four and six subgroups, respectively, on the basis of phylogenetic analyses. An expression correlation analysis was performed to explore the co-expression relationships between PhC5-MTases and PhMBDs using RNA-seq data, and 11 PhC5-MTase/PhMBD pairs preferentially expressed in anthers were identified as having the most significant correlations (Pearson’s correlation coefficients > 0.9). Remarkably, the stability levels of the PhC5-MTase and PhMBD pairs significantly decreased in different tissues and organs compared with that in anthers, and most of the selected PhC5-MTases and PhMBDs responded to the abiotic and hormonal stresses. However, highly correlated expression relationships between most pairs were not observed under different stress conditions, indicating that anther developmental processes are preferentially influenced by the co-expression of PhC5-MTases and PhMBDs. Interestingly, the nuclear localization genes PhDRM2 and PhMBD2 still had higher correlations under GA treatment conditions, implying that they play important roles in the GA-mediated development of petunia. Collectively, our study suggests a regulatory role for DNA methylation by C5-MTase and MBD genes in petunia anther maturation processes and multi-stress responses, and it provides a framework for the functional characterization of C5-MTases and MBDs in the future.

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DNA methylation of tapetum cells during microsporogenesis in Malus domestica Borkh.

Cited by 6 publications

References 0 publications

Arsenic-induced morphogenic response in roots of arsenic hyperaccumulator fern Pteris vittata

Arsenic-induced morphogenic response in roots of arsenic hyperaccumulator fern Pteris vittata

The Role of DNA Methylation in Perennial Plants

Exploration of the Potential Transcriptional Regulatory Mechanisms of DNA Methyltransferases and MBD Genes in Petunia Anther Development and Multi-Stress Responses

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