Title:
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Global epigenomic reconfiguration during mammalian brain development
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Author:
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Lister, Ryan; Mukamel, Eran A.; Nery, Joseph R.; Urich, Mark; Puddifoot, Clare A.; Johnson, Nicholas D.; Lucero, Jacinta; Huang, Yun; Dwork, Andrew J.; Schultz, Matthew D.; Yu, Miao; Tonti Filippini, Julian; Heyn, Holger; Hu, Shijun; Wu, Joseph C.; Rao, Anjana; Esteller, Manel; He, Chuan; Haghighi, Fatemeh G; Sejnowski, Terrence J.; Behrens, M. Margarita; Ecker, Joseph R.
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Other authors:
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Universitat de Barcelona |
Abstract:
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DNA methylation is implicated in mammalian brain development and plasticity underlying learning and memory. We report the genome-wide composition, patterning, cell specificity, and dynamics of DNA methylation at single-base resolution in human and mouse frontal cortex throughout their lifespan. Widespread methylome reconfiguration occurs during fetal to young adult development, coincident with synaptogenesis. During this period, highly conserved non-CG methylation (mCH) accumulates in neurons, but not glia, to become the dominant form of methylation in the human neuronal genome. Moreover, we found an mCH signature that identifies genes escaping X-chromosome inactivation. Last, whole-genome single-base resolution 5-hydroxymethylcytosine (hmC) maps revealed that hmC marks fetal brain cell genomes at putative regulatory regions that are CG-demethylated and activated in the adult brain and that CG demethylation at these hmC-poised loci depends on Tet2 activity. |
Subject(s):
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-ADN -Aprenentatge -Memòria -DNA -Learning -Memory |
Rights:
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(c) Lister, Ryan et al., 2013
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Document type:
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Article Article - Accepted version |
Published by:
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American Association for the Advancement of Science
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