---
_id: '9473'
abstract:
- lang: eng
text: Cytosine DNA methylation regulates the expression of eukaryotic genes and
transposons. Methylation is copied by methyltransferases after DNA replication,
which results in faithful transmission of methylation patterns during cell division
and, at least in flowering plants, across generations. Transgenerational inheritance
is mediated by a small group of cells that includes gametes and their progenitors.
However, methylation is usually analyzed in somatic tissues that do not contribute
to the next generation, and the mechanisms of transgenerational inheritance are
inferred from such studies. To gain a better understanding of how DNA methylation
is inherited, we analyzed purified Arabidopsis thaliana sperm and vegetative cells-the
cell types that comprise pollen-with mutations in the DRM, CMT2, and CMT3 methyltransferases.
We find that DNA methylation dependency on these enzymes is similar in sperm,
vegetative cells, and somatic tissues, although DRM activity extends into heterochromatin
in vegetative cells, likely reflecting transcription of heterochromatic transposons
in this cell type. We also show that lack of histone H1, which elevates heterochromatic
DNA methylation in somatic tissues, does not have this effect in pollen. Instead,
levels of CG methylation in wild-type sperm and vegetative cells, as well as in
wild-type microspores from which both pollen cell types originate, are substantially
higher than in wild-type somatic tissues and similar to those of H1-depleted roots.
Our results demonstrate that the mechanisms of methylation maintenance are similar
between pollen and somatic cells, but the efficiency of CG methylation is higher
in pollen, allowing methylation patterns to be accurately inherited across generations.
article_processing_charge: No
article_type: original
author:
- first_name: Ping-Hung
full_name: Hsieh, Ping-Hung
last_name: Hsieh
- first_name: Shengbo
full_name: He, Shengbo
last_name: He
- first_name: Toby
full_name: Buttress, Toby
last_name: Buttress
- first_name: Hongbo
full_name: Gao, Hongbo
last_name: Gao
- first_name: Matthew
full_name: Couchman, Matthew
last_name: Couchman
- 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
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
citation:
ama: Hsieh P-H, He S, Buttress T, et al. Arabidopsis male sexual lineage exhibits
more robust maintenance of CG methylation than somatic tissues. Proceedings
of the National Academy of Sciences. 2016;113(52):15132-15137. doi:10.1073/pnas.1619074114
apa: Hsieh, P.-H., He, S., Buttress, T., Gao, H., Couchman, M., Fischer, R. L.,
… Feng, X. (2016). Arabidopsis male sexual lineage exhibits more robust maintenance
of CG methylation than somatic tissues. Proceedings of the National Academy
of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.1619074114
chicago: Hsieh, Ping-Hung, Shengbo He, Toby Buttress, Hongbo Gao, Matthew Couchman,
Robert L. Fischer, Daniel Zilberman, and Xiaoqi Feng. “Arabidopsis Male Sexual
Lineage Exhibits More Robust Maintenance of CG Methylation than Somatic Tissues.”
Proceedings of the National Academy of Sciences. National Academy of Sciences,
2016. https://doi.org/10.1073/pnas.1619074114.
ieee: P.-H. Hsieh et al., “Arabidopsis male sexual lineage exhibits more
robust maintenance of CG methylation than somatic tissues,” Proceedings of
the National Academy of Sciences, vol. 113, no. 52. National Academy of Sciences,
pp. 15132–15137, 2016.
ista: Hsieh P-H, He S, Buttress T, Gao H, Couchman M, Fischer RL, Zilberman D, Feng
X. 2016. Arabidopsis male sexual lineage exhibits more robust maintenance of CG
methylation than somatic tissues. Proceedings of the National Academy of Sciences.
113(52), 15132–15137.
mla: Hsieh, Ping-Hung, et al. “Arabidopsis Male Sexual Lineage Exhibits More Robust
Maintenance of CG Methylation than Somatic Tissues.” Proceedings of the National
Academy of Sciences, vol. 113, no. 52, National Academy of Sciences, 2016,
pp. 15132–37, doi:10.1073/pnas.1619074114.
short: P.-H. Hsieh, S. He, T. Buttress, H. Gao, M. Couchman, R.L. Fischer, D. Zilberman,
X. Feng, Proceedings of the National Academy of Sciences 113 (2016) 15132–15137.
date_created: 2021-06-07T06:21:39Z
date_published: 2016-12-27T00:00:00Z
date_updated: 2023-05-08T11:00:40Z
day: '27'
department:
- _id: DaZi
- _id: XiFe
doi: 10.1073/pnas.1619074114
extern: '1'
external_id:
pmid:
- '27956643'
intvolume: ' 113'
issue: '52'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1619074114
month: '12'
oa: 1
oa_version: Published Version
page: 15132-15137
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Arabidopsis male sexual lineage exhibits more robust maintenance of CG methylation
than somatic tissues
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 113
year: '2016'
...