Walker, James; Gao, Hongbo; Zhang, Jingyi; Aldridge, Billy; Vickers, Martin; Higgins, James D.; Feng, XiaoqiISTA
DNA methylation regulates eukaryotic gene expression and is extensively reprogrammed during animal development. However, whether developmental methylation reprogramming during the sporophytic life cycle of flowering plants regulates genes is presently unknown. Here we report a distinctive gene-targeted RNA-directed DNA methylation (RdDM) activity in the Arabidopsis thaliana male sexual lineage that regulates gene expression in meiocytes. Loss of sexual-lineage-specific RdDM causes mis-splicing of the MPS1 gene (also known as PRD2), thereby disrupting meiosis. Our results establish a regulatory paradigm in which de novo methylation creates a cell-lineage-specific epigenetic signature that controls gene expression and contributes to cellular function in flowering plants.
We thank Daniel Zilberman for intellectual contributions to this work and assistance with manuscript preparation. We also thank Caroline Dean, Kirsten Bomblies, Vinod Kumar, Siobhan Brady and Sophien Kamoun for comments on the manuscript, Hugh Dickinson and Josephine Hellberg for developing the meiocyte isolation method, Giles Oldroyd for the pGWB13-Bar vector, Elisa Fiume for the pMDC107-NTF vector, Matthew Hartley, Matthew Couchman and Tjelvar Sten Gunnar Olsson for bioinformatics support, and the John Innes Centre Bioimaging Facility (Elaine Barclay and Grant Calder) for their assistance with microscopy. This work was funded by a Biotechnology and Biological Sciences Research Council (BBSRC) David Phillips Fellowship (BBL0250431) to X.F., a BBSRC grant (BBM01973X1) to J.H., and a Sainsbury PhD Studentship to J.W.
Walker J, Gao H, Zhang J, et al. Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis. Nature Genetics. 2017;50(1):130-137. doi:10.1038/s41588-017-0008-5
Walker, J., Gao, H., Zhang, J., Aldridge, B., Vickers, M., Higgins, J. D., & Feng, X. (2017). Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis. Nature Genetics. Springer Science and Business Media LLC. https://doi.org/10.1038/s41588-017-0008-5
Walker, James, Hongbo Gao, Jingyi Zhang, Billy Aldridge, Martin Vickers, James D. Higgins, and Xiaoqi Feng. “Sexual-Lineage-Specific DNA Methylation Regulates Meiosis in Arabidopsis.” Nature Genetics. Springer Science and Business Media LLC, 2017. https://doi.org/10.1038/s41588-017-0008-5.
J. Walker et al., “Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis,” Nature Genetics, vol. 50, no. 1. Springer Science and Business Media LLC, pp. 130–137, 2017.
Walker J, Gao H, Zhang J, Aldridge B, Vickers M, Higgins JD, Feng X. 2017. Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis. Nature Genetics. 50(1), 130–137.
Walker, James, et al. “Sexual-Lineage-Specific DNA Methylation Regulates Meiosis in Arabidopsis.” Nature Genetics, vol. 50, no. 1, Springer Science and Business Media LLC, 2017, pp. 130–37, doi:10.1038/s41588-017-0008-5.
All files available under the following license(s):
This Item is protected by copyright and/or related rights. [...]
Link(s) to Main File(s)