Evidence map›Paper›PMID 36092417›Full record

ArticleFrontiers in plant science2022

An open and continuously updated fern tree of life.

Joel H Nitta, Eric Schuettpelz, Santiago Ramírez-Barahona, Wataru Iwasaki

Abstract read
In one paragraph

Article in Frontiers in plant science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

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  15. Phenolic compounds in species of the Blechnaceae.Plant biology (Stuttgart, Germany) · 2026
    Article
  16. Global Diversification Rates of Ferns Across Spatial and Climatic Gradients.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  17. Arabinogalactan-proteins of the eusporangiate fernCell surface (Amsterdam, Netherlands) · 2025
    Article
  18. 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

4 authors.

Joel H NittaDepartment of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
Eric SchuettpelzDepartment of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC, United States.
Santiago Ramírez-BarahonaDepartamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Wataru IwasakiDepartment of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ferns, with about 12,000 species, are the second most diverse lineage of vascular plants after angiosperms. They have been the subject of numerous molecular phylogenetic studies, resulting in the publication of trees for every major clade and DNA sequences from nearly half of all species. Global fern phylogenies have been published periodically, but as molecular systematics research continues at a rapid pace, these become quickly outdated. Here, we develop a mostly automated, reproducible, open pipeline to generate a continuously updated fern tree of life (FTOL) from DNA sequence data available in GenBank. Our tailored sampling strategy combines whole plastomes (few taxa, many loci) with commonly sequenced plastid regions (many taxa, few loci) to obtain a global, species-level fern phylogeny with high resolution along the backbone and maximal sampling across the tips. We use a curated reference taxonomy to resolve synonyms in general compliance with the community-driven Pteridophyte Phylogeny Group I classification. The current FTOL includes 5,582 species, an increase of

Indexed as

fernphylogenyplastomePPGIpteridophyterbcL

Identifiers

PMID36092417
PMCPMC9449725

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.