Evidence map›Paper›PMID 33218336›Full record

ArticleBMC biology2020

Dynamic and reversible DNA methylation changes induced by genome separation and merger of polyploid wheat.

Jingya Yuan, Wu Jiao, Yanfeng Liu, Wenxue Ye, Xiue Wang, Bao Liu, Qingxin Song, Z Jeffrey Chen

Open access · goldAbstract read
In one paragraph

Article in BMC biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
14.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 72 citations in OpenAlex.

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  10. Epigenetics in the modern era of crop improvements.Science China. Life sciences · 2025
    Review
  11. Exploring the methyl-verse: Dynamic interplay of epigenome and m6A epitranscriptome.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  12. Review
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  18. Triticeae crop genome biology: an endless frontier.Frontiers in plant science · 2023
    Review
  19. Physiology and molecular biology of plants : an international journal of functional plant biology · 2022
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Jingya YuanState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China.
Wu JiaoState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China.
Yanfeng LiuState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China.
Wenxue YeState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China.
Xiue WangState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China.
Bao LiuKey Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchu, 130024, China.
Qingxin SongState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China. qxsong@njau.edu.cn.
Z Jeffrey ChenState Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, China. zjchen@austin.utexas.edu.ORCID 0000-0001-5006-8036
Nanjing Agricultural University · CNNortheast Normal University · CN

Funding

Jiangsu Provincial Key Research and Development Program KJQN201907National Natural Science Foundation of China 31290213National Natural Science Foundation of China 31801351
6 · The paper itself

Abstract

backgroundWheat is a powerful genetic model for studying polyploid evolution and crop domestication. Hexaploid bread wheat was formed by two rounds of interspecific hybridization and polyploidization, processes which are often accompanied by genetic and epigenetic changes, including DNA methylation. However, the extent and effect of such changes during wheat evolution, particularly from tetraploid-to-hexaploid wheat, are currently elusive.

resultsHere we report genome-wide DNA methylation landscapes in extracted tetraploid wheat (ETW, AABB), natural hexaploid wheat (NHW, AABBDD), resynthesized hexaploid wheat (RHW, AABBDD), natural tetraploid wheat (NTW, AABB), and diploid (DD). In the endosperm, levels of DNA methylation, especially in CHG (H=A, T, or C) context, were dramatically decreased in the ETW relative to natural hexaploid wheat; hypo-differentially methylated regions (DMRs) (850,832) were 24-fold more than hyper-DMRs (35,111). Interestingly, those demethylated regions in ETW were remethylated in the resynthesized hexaploid wheat after the addition of the D genome. In ETW, hypo-DMRs correlated with gene expression, and TEs were demethylated and activated, which could be silenced in the hexaploid wheat. In NHW, groups of TEs were dispersed in genic regions of three subgenomes, which may regulate the expression of TE-associated genes. Further, hypo-DMRs in ETW were associated with reduced H3K9me2 levels and increased expression of histone variant genes, suggesting concerted epigenetic changes after separation from the hexaploid.

conclusionGenome merger and separation provoke dynamic and reversible changes in chromatin and DNA methylation. These changes correlate with altered gene expression and TE activity, which may provide insights into polyploid genome and wheat evolution.

Indexed as

Biological EvolutionDNA MethylationDomesticationPolyploidyEvolution, MolecularGenome, PlantTriticumDNA methylationExtracted tetraploid wheatGenomicsPolyploidyTransposonWheat evolution

Identifiers

PMID33218336
PMCPMC7679994
OpenAlexW3103770521

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.