Evidence map›Paper›PMID 41507441›Full record

ArticleCell research2026

R-loops orchestrate RNAPII transcriptional reprogramming for the maternal-to-zygotic transition.

Yaoyi Li, Qing Li, Xinxiu Wang, Chao Di, Yingliang Sheng, Ying Ma, Junzhi Liao, Qingqing Cai, Sainan Huang, Jiayu Chen and 5 more

Abstract read
In one paragraph

Article in Cell research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. Review
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

15 authors.

Yaoyi Li *State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Qing Li *Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.
Xinxiu Wang *Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.
Chao DiDepartment of Basic Research, Guangzhou National Laboratory, Guangzhou, Guangdong, China.
Yingliang ShengDepartment of Basic Research, Guangzhou National Laboratory, Guangzhou, Guangdong, China.
Ying MaDepartment of Basic Research, Guangzhou National Laboratory, Guangzhou, Guangdong, China.
Junzhi LiaoState Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Qingqing CaiGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.
Sainan HuangDepartment of Basic Research, Guangzhou National Laboratory, Guangzhou, Guangdong, China.
Jiayu ChenSchool of Life Sciences and Technology, Tongji University, Shanghai, China.ORCID 0000-0003-4755-8901
Guangming WuDepartment of Basic Research, Guangzhou National Laboratory, Guangzhou, Guangdong, China.ORCID 0000-0003-1923-7609
Lingling ZhangInstitute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China.
Guangjin PanGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.ORCID 0000-0002-2378-7198
Shaorong GaoSchool of Life Sciences and Technology, Tongji University, Shanghai, China.ORCID 0000-0003-1041-3928
Hongjie YaoState Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. yao_hongjie@gzlab.ac.cn.ORCID 0000-0003-2144-0147

Funding

National Natural Science Foundation of China (National Science Foundation of China) 32200456National Natural Science Foundation of China (National Science Foundation of China) 32430016
6 · The paper itself

Abstract

R-loops are pervasive genomic structures that link epigenetic modification and transcriptional regulation. However, the functional roles and regulatory mechanisms of R-loops during preimplantation development in mammals remain unexplored. Here, we reveal that the reprogramming of R-loops across developmental stages depends on CG density, with CG-poor R-loops more stage specific and strongly associated with early embryonic development. Loss of CG-poor R-loops causes severe defects in the maternal-to-zygotic transition (MZT) and preimplantation embryo development. This abnormal maintenance of CG-poor R-loops promotes premature activation of major zygotic genome activation (ZGA) genes. CG-poor R-loops inhibit DDX21 helicase activity on the 7SK/HEXIM1 snRNP complex, restricting CDK9 release and subsequent phosphorylation of Ser2 at the C-terminal domain of RNA polymerase II (RNAPII S2p) - the biochemical hallmark of pause release - thus enforcing RNAPII accumulation at major ZGA gene promoters to ensure productive transcription. These findings establish R-loops as direct modulators of RNAPII pause release, promoting the temporal fidelity of gene expression during the MZT.

Indexed as

R-Loop StructuresRNA Polymerase IITranscription, GeneticZygoteAnimalsCyclin-Dependent Kinase 9DEAD-box RNA HelicasesEmbryonic DevelopmentGene Expression Regulation, DevelopmentalMicePhosphorylationPromoter Regions, GeneticCyclin-Dependent Kinase 9DEAD-box RNA HelicasesRNA Polymerase II

Identifiers

PMID41507441
PMCPMC12909931

What Socratic holds

Textmetadata
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 Socratic graph.