Evidence map›Paper›PMID 32286373›Full record

ArticleScientific reports2020

An epigenetic map of malaria parasite development from host to vector.

Kathrin Witmer, Sabine A Fraschka, Dina Vlachou, Richárd Bártfai, George K Christophides

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  8. Microorganisms · 2023
    Review
  9. Differentiation ofProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
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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

5 authors at 3 institutions in 3 countries.

Kathrin WitmerDepartment of Life Sciences, Imperial College London, SW7 2AZ, London, UK. kathrin.witmer@gmail.com.
Sabine A FraschkaDepartment of Molecular Biology, Radboud University, 6525, GA, Nijmegen, The Netherlands.
Dina VlachouDepartment of Life Sciences, Imperial College London, SW7 2AZ, London, UK.
Richárd BártfaiDepartment of Molecular Biology, Radboud University, 6525, GA, Nijmegen, The Netherlands.
George K ChristophidesDepartment of Life Sciences, Imperial College London, SW7 2AZ, London, UK. g.christophides@imperial.ac.uk.
Imperial College London · GBRadboud University Nijmegen · NLUniversity of Tübingen · DE

Funding

Wellcome TrustWellcome Trust 093587/Z/10/ZWellcome Trust 107983/Z/15/Z
6 · The paper itself

Abstract

The malaria parasite replicates asexually in the red blood cells of its vertebrate host employing epigenetic mechanisms to regulate gene expression in response to changes in its environment. We used chromatin immunoprecipitation followed by sequencing in conjunction with RNA sequencing to create an epigenomic and transcriptomic map of the developmental transition from asexual blood stages to male and female gametocytes and to ookinetes in the rodent malaria parasite Plasmodium berghei. Across the developmental stages examined, heterochromatin protein 1 associates with variantly expressed gene families localised at subtelomeric regions and variant gene expression based on heterochromatic silencing is observed only in some genes. Conversely, the euchromatin mark histone 3 lysine 9 acetylation (H3K9ac) is abundant in non-heterochromatic regions across all developmental stages. H3K9ac presents a distinct pattern of enrichment around the start codon of ribosomal protein genes in all stages but male gametocytes. Additionally, H3K9ac occupancy positively correlates with transcript abundance in all stages but female gametocytes suggesting that transcription in this stage is independent of H3K9ac levels. This finding together with known mRNA repression in female gametocytes suggests a multilayered mechanism operating in female gametocytes in preparation for fertilization and zygote development, coinciding with parasite transition from host to vector.

Indexed as

AcetylationAnimalsChromatinChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneEpigenesis, GeneticFertilizationGene Expression RegulationGerm CellsHistone CodeHumansMalaria, FalciparumPlasmodium falciparumProtein Processing, Post-TranslationalSequence Analysis, RNAZygoteChromatinChromobox Protein Homolog 5Chromosomal Proteins, Non-Histone

Identifiers

PMID32286373
PMCPMC7156373
OpenAlexW3015443049

What OpenQuestion holds

Textmetadata
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.