Grafting vigour is associated with DNA de-methylation in eggplant
| Autor: | Lorenzo Barchi, Elisa Cerruti, Jaime Prohens, Hajk-Georg Drost, Danila Valentino, Carmina Gisbert, Marco Catoni, Cinzia Comino, Sergio Lanteri, Ezio Portis |
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| Přispěvatelé: | Drost, Hajk-Georg [0000-0002-1567-306X], Lanteri, Sergio [0000-0003-3012-8710], Catoni, Marco [0000-0002-3258-2522], Apollo - University of Cambridge Repository |
| Rok vydání: | 2021 |
| Předmět: |
30 Agricultural
Veterinary and Food Sciences Context (language use) Plant Science Horticulture Biochemistry Article 3105 Genetics Plant development Genetics Epigenetics Hybrid DNA methylation biology Human Genome food and beverages 631/208/176/1988 Methylation biology.organism_classification Phenotype 3108 Plant Biology 02.- Poner fin al hambre conseguir la seguridad alimentaria y una mejor nutrición y promover la agricultura sostenible GENETICA FOS: Biological sciences Solanum Rootstock 631/449/2653 31 Biological Sciences Biotechnology |
| Zdroj: | Horticulture Research RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 2052-7276 2662-6810 |
| Popis: | [EN] In horticulture, grafting is a popular technique used to combine positive traits from two different plants. This is achieved by joining the plant top part (scion) onto a rootstock which contains the stem and roots. Rootstocks can provide resistance to stress and increase plant production, but despite their wide use, the biological mechanisms driving rootstock-induced alterations of the scion phenotype remain largely unknown. Given that epigenetics plays a relevant role during distance signalling in plants, we studied the genome-wide DNA methylation changes induced in eggplant (Solanum melongena) scion using two interspecific rootstocks to increase vigour. We found that vigour was associated with a change in scion gene expression and a genome-wide hypomethylation in the CHH context. Interestingly, this hypomethylation correlated with the downregulation of younger and potentially more active long terminal repeat retrotransposable elements (LTR-TEs), suggesting that graft-induced epigenetic modifications are associated with both physiological and molecular phenotypes in grafted plants. Our results indicate that the enhanced vigour induced by heterografting in eggplant is associated with epigenetic modifications, as also observed in some heterotic hybrids. Part of the computations described in this paper was performed using the University of Birmingham's Compute and Storage for Life Sciences (CaStLeS) service. We are grateful to Dr. J. Paszkowski (Sainsbury Laboratory, Cambridge, UK) and all the members of his research group for the support and fruitful scientific discussions during the experimental work, Dr. J. Griffiths (Sainsbury Laboratory, Cambridge, UK) and K. Jeynes-Cupper (University of Birmingham, Birmingham, UK) for the critical reading of the manuscript; R. Schina (FMI, Basel, Switzerland) for helping in the first stages of eggplant development and for software assistance and the Max Planck Society for the support to H.G.D. |
| Databáze: | OpenAIRE |
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