Evidence map›Paper›PMID 32687892›Full record

ArticleDevelopmental biology2020

Development of the electric organ in embryos and larvae of the knifefish, Brachyhypopomus gauderio.

Ilham J J Alshami, Yosuke Ono, Ana Correia, Christian Hacker, Anke Lange, Steffen Scholpp, Masashi Kawasaki, Philip W Ingham, Tetsuhiro Kudoh

Abstract read
In one paragraph

Article in Developmental biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
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

9 authors.

Ilham J J AlshamiBiosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK.
Yosuke OnoBiosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK; Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
Ana CorreiaDepartment of Physiology, Development and Neuroscience, University of Cambridge, CB2 3EG, UK.
Christian HackerBiosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK.
Anke LangeBiosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK.
Steffen ScholppLiving Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
Masashi KawasakiDepartment of Biology, University of Virginia, Charlottesville, VA, 22904, USA.
Philip W InghamLiving Systems Institute, University of Exeter, Exeter, EX4 4QD, UK; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
Tetsuhiro KudohBiosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK. Electronic address: t.kudoh@exeter.ac.uk.

Funding

Biotechnology and Biological Sciences Research Council BB/S016295/1Medical Research Council MR/S007970/1
6 · The paper itself

Abstract

South American Gymnotiform knifefish possess electric organs that generate electric fields for electro-location and electro-communication. Electric organs in fish can be derived from either myogenic cells (myogenic electric organ/mEO) or neurogenic cells (neurogenic electric organ/nEO). To date, the embryonic development of EOs has remained obscure. Here we characterize the development of the mEO in the Gymnotiform bluntnose knifefish, Brachyhypopomus gauderio. We find that EO primordial cells arise during embryonic stages in the ventral edge of the tail myotome, translocate into the ventral fin and develop into syncytial electrocytes at early larval stages. We also describe a pair of thick nerve cords that flank the dorsal aorta, the location and characteristic morphology of which are reminiscent of the nEO in Apteronotid species, suggesting a common evolutionary origin of these tissues. Taken together, our findings reveal the embryonic origins of the mEO and provide a basis for elucidating the mechanisms of evolutionary diversification of electric charge generation by myogenic and neurogenic EOs.

Indexed as

Biological EvolutionAnimalsElectric OrganEmbryo, NonmammalianGymnotiformesElectric fishElectric organElectrocyteKnifefishStaging

Identifiers

PMID32687892
PMCPMC7507958

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.