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| Content Provider | PubMed Central |
|---|---|
| Author | Valledor, Luis Pascual, Jesús Meijón, Mónica Escandón, Mónica Cañal, María Jesús |
| Editor | Candela, Hector |
| Copyright Year | 2015 |
| Abstract | Needle maturation is a complex process that involves cell growth, differentiation and tissue remodelling towards the acquisition of full physiological competence. Leaf induction mechanisms are well known; however, those underlying the acquisition of physiological competence are still poorly understood, especially in conifers. We studied the specific epigenetic regulation of genes defining organ function (PrRBCS and PrRBCA) and competence and stress response (PrCSDP2 and PrSHMT4) during three stages of needle development and one de-differentiated control. Gene-specific changes in DNA methylation and histone were analysed by bisulfite sequencing and chromatin immunoprecipitation (ChIP). The expression of PrRBCA and PrRBCS increased during needle maturation and was associated with the progressive loss of H3K9me3, H3K27me3 and the increase in AcH4. The maturation-related silencing of PrSHMT4 was correlated with increased H3K9me3 levels, and the repression of PrCSDP2, to the interplay between AcH4, H3K27me3, H3K9me3 and specific DNA methylation. The employ of HAT and HDAC inhibitors led to a further determination of the role of histone acetylation in the regulation of our target genes. The integration of these results with high-throughput analyses in Arabidopsis thaliana and Populus trichocarpa suggests that the specific epigenetic mechanisms that regulate photosynthetic genes are conserved between the analysed species. |
| Related Links | http://dx.doi.org/10.1371/journal.pone.0126405 |
| Starting Page | 126405 |
| File Format | |
| ISSN | 19326203 |
| e-ISSN | 19326203 |
| Journal | PLoS ONE |
| Issue Number | 5 |
| Volume Number | 10 |
| Language | English |
| Publisher | Public Library of Science |
| Publisher Date | 2015-05-01 |
| Access Restriction | Open |
| Rights Holder | Public Library of Science |
| Subject Keyword | Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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