Evidence map›Paper›PMID 34018613›Full record

ReviewThe New phytologist2021

Why is primary endosymbiosis so rare?

Timothy G Stephens, Arwa Gabr, Victoria Calatrava, Arthur R Grossman, Debashish Bhattacharya

Open access · bronzeAbstract readReview
In one paragraph

Review in The New phytologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

9 citing papers in PubMed, 31 citations in OpenAlex.

  1. Eukaryogenesis From FECA to LECA: Radical Steps Along the Way.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  2. Article
  3. Article
  4. Evidence of a putative COEnvironmental microbiology reports · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. 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

5 authors at 2 institutions in 1 country.

Timothy G StephensDepartment of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, 08901, USA.ORCID 0000-0003-1554-7175
Arwa GabrGraduate Program in Molecular Bioscience and Program in Microbiology and Molecular Genetics, Rutgers University, Piscataway, NJ, 08854, USA.ORCID 0000-0002-7159-0568
Victoria CalatravaDepartment of Plant Biology, The Carnegie Institution, Stanford, CA, 94305, USA.ORCID 0000-0002-6323-5793
Arthur R GrossmanDepartment of Plant Biology, The Carnegie Institution, Stanford, CA, 94305, USA.ORCID 0000-0002-3747-5881
Debashish BhattacharyaDepartment of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, 08901, USA.ORCID 0000-0003-0611-1273
Rutgers, The State University of New Jersey · USCarnegie Institution for Science · US

Funding

Shared Services Center NASA 80NSSC19K0462
6 · The paper itself

Abstract

Endosymbiosis is a relationship between two organisms wherein one cell resides inside the other. This affiliation, when stable and beneficial for the 'host' cell, can result in massive genetic innovation with the foremost examples being the evolution of eukaryotic organelles, the mitochondria and plastids. Despite its critical evolutionary role, there is limited knowledge about how endosymbiosis is initially established and how host-endosymbiont biology is integrated. Here, we explore this issue, using as our model the rhizarian amoeba Paulinella, which represents an independent case of primary plastid origin that occurred c. 120 million yr ago. We propose the 'chassis and engine' model that provides a theoretical framework for understanding primary plastid endosymbiosis, potentially explaining why it is so rare.

Indexed as

AmoebaSymbiosisBiological EvolutionEukaryotaPhylogenyPlastidsendosymbiotic gene transfergenome reductionorganellogenesisphotosynthetic eukaryotesprimary endosymbiosisRhizaria

Identifiers

PMID34018613
PMCPMC8711089
OpenAlexW3160187542

What OpenQuestion 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 OpenQuestion graph.