Evidence map›Paper›PMID 23314963›Full record

ArticleEukaryotic cell2013

Multigene-based analyses of the phylogenetic evolution of oligotrich ciliates, with consideration of the internal transcribed spacer 2 secondary structure of three systematically ambiguous genera.

Jiamei Li, Weiwei Liu, Shan Gao, Alan Warren, Weibo Song

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  3. Multi-Gene Phylogeny of the Ciliate GenusFrontiers in microbiology · 2021
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

5 authors at 3 institutions in 3 countries.

Jiamei LiInstitute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China.
Weiwei Liu
Shan Gao
Alan Warren
Weibo Song
Ocean University of China · CNAmerican Museum of Natural History · USUniversity of Michigan–Ann Arbor · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oligotrichs are ciliates of great abundance, but their molecular systematics are rarely studied. In this study, nine species representing three genera (Strombidium, Novistrombidium, and Omegastrombidium) of marine oligotrich ciliates were collected from coastal waters of China. The small subunit (SSU) rRNA gene of two species and the internal transcribed spacers and 5.8S region (ITS1-5.8S-ITS2) for all nine species were sequenced for the first time. Phylogenetic trees using both the SSU rRNA gene and ITS1-5.8S-ITS2 region sequences were generated. In addition, the secondary structures of ITS2 RNA transcripts of 11 taxa representing four genera (Novistrombidium, Strombidium, Omegastrombidium, and Laboea) were investigated. The phylogenetic analyses show that (i) the family Strombidiidae is polyphyletic, (ii) the genus Novistrombidium is probably paraphyletic, containing at least two subclades, which is consistent with recent cladistic analyses based on morphological data, and (iii) the tail-less genus Laboea is separate from other genera of Strombidiidae, clustering instead with the tontoniids. Comparisons of the secondary structure of ITS2 regions also show that Laboea is clearly different from other strombidiids. These findings cast doubt on the monophyly of the family Strombidiidae.

Indexed as

Evolution, MolecularPhylogenyChinaCiliophoraDNA, Ribosomal SpacerGenes, rRNASeawaterSequence Analysis, DNATranscription, GeneticDNA, Ribosomal Spacer

Identifiers

PMID23314963
PMCPMC3629766
OpenAlexW2116322444

What OpenQuestion holds

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Registered trials

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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.