---
_id: '9453'
abstract:
- lang: eng
text: Parent-of-origin-specific (imprinted) gene expression is regulated in Arabidopsis
thaliana endosperm by cytosine demethylation of the maternal genome mediated by
the DNA glycosylase DEMETER, but the extent of the methylation changes is not
known. Here, we show that virtually the entire endosperm genome is demethylated,
coupled with extensive local non-CG hypermethylation of small interfering RNA–targeted
sequences. Mutation of DEMETER partially restores endosperm CG methylation to
levels found in other tissues, indicating that CG demethylation is specific to
maternal sequences. Endosperm demethylation is accompanied by CHH hypermethylation
of embryo transposable elements. Our findings demonstrate extensive reconfiguration
of the endosperm methylation landscape that likely reinforces transposon silencing
in the embryo.
article_processing_charge: No
article_type: original
author:
- first_name: Tzung-Fu
full_name: Hsieh, Tzung-Fu
last_name: Hsieh
- first_name: Christian A.
full_name: Ibarra, Christian A.
last_name: Ibarra
- first_name: Pedro
full_name: Silva, Pedro
last_name: Silva
- first_name: Assaf
full_name: Zemach, Assaf
last_name: Zemach
- first_name: Leor
full_name: Eshed-Williams, Leor
last_name: Eshed-Williams
- first_name: Robert L.
full_name: Fischer, Robert L.
last_name: Fischer
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Hsieh T-F, Ibarra CA, Silva P, et al. Genome-wide demethylation of Arabidopsis
endosperm. Science. 2009;324(5933):1451-1454. doi:10.1126/science.1172417
apa: Hsieh, T.-F., Ibarra, C. A., Silva, P., Zemach, A., Eshed-Williams, L., Fischer,
R. L., & Zilberman, D. (2009). Genome-wide demethylation of Arabidopsis endosperm.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.1172417
chicago: Hsieh, Tzung-Fu, Christian A. Ibarra, Pedro Silva, Assaf Zemach, Leor Eshed-Williams,
Robert L. Fischer, and Daniel Zilberman. “Genome-Wide Demethylation of Arabidopsis
Endosperm.” Science. American Association for the Advancement of Science,
2009. https://doi.org/10.1126/science.1172417.
ieee: T.-F. Hsieh et al., “Genome-wide demethylation of Arabidopsis endosperm,”
Science, vol. 324, no. 5933. American Association for the Advancement of
Science, pp. 1451–1454, 2009.
ista: Hsieh T-F, Ibarra CA, Silva P, Zemach A, Eshed-Williams L, Fischer RL, Zilberman
D. 2009. Genome-wide demethylation of Arabidopsis endosperm. Science. 324(5933),
1451–1454.
mla: Hsieh, Tzung-Fu, et al. “Genome-Wide Demethylation of Arabidopsis Endosperm.”
Science, vol. 324, no. 5933, American Association for the Advancement of
Science, 2009, pp. 1451–54, doi:10.1126/science.1172417.
short: T.-F. Hsieh, C.A. Ibarra, P. Silva, A. Zemach, L. Eshed-Williams, R.L. Fischer,
D. Zilberman, Science 324 (2009) 1451–1454.
date_created: 2021-06-04T08:55:41Z
date_published: 2009-06-12T00:00:00Z
date_updated: 2021-12-14T08:53:26Z
day: '12'
department:
- _id: DaZi
doi: 10.1126/science.1172417
extern: '1'
external_id:
pmid:
- '19520962'
intvolume: ' 324'
issue: '5933'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4044190/
month: '06'
oa: 1
oa_version: Submitted Version
page: 1451-1454
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Genome-wide demethylation of Arabidopsis endosperm
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 324
year: '2009'
...