Evidence map›Paper›PMID 32299349›Full record

ArticleBMC developmental biology2020

A practical staging atlas to study embryonic development of Octopus vulgaris under controlled laboratory conditions.

Astrid Deryckere, Ruth Styfhals, Erica A G Vidal, Eduardo Almansa, Eve Seuntjens

Abstract read
In one paragraph

Article in BMC developmental biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Charting a Sustainable Course:Microorganisms · 2026
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  2. Article
  3. Review
  4. Article
  5. A non-invasive method to genotype cephalopod sex by quantitative PCR.bioRxiv : the preprint server for biology · 2025
    Article
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  15. Review
  16. Optimization of Whole Mount RNA MultiplexedFrontiers in physiology · 2022
    Article
  17. 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

5 authors.

Astrid DeryckereLaboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium.
Ruth StyfhalsLaboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium.
Erica A G VidalCenter for Marine Studies, University of Parana, Curitiba, Brazil.
Eduardo AlmansaInstituto Español de Oceanografía (IEO), Santa Cruz de Tenerife, Spain.
Eve SeuntjensLaboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium. eve.seuntjens@kuleuven.be.

Funding

Brazilian National Research Council- CNPq 312331/2018-1Brazilian National Research Council- CNPq 426797/2018-3Fonds Wetenschappelijk Onderzoek 1S19517NFonds Wetenschappelijk Onderzoek G0B5916NFonds Wetenschappelijk Onderzoek G0C2618NOCTOMICs, Spanish Government AGL2017-89475-C2-2-ROnderzoeksraad, KU Leuven C14/16/049
6 · The paper itself

Abstract

backgroundOctopus vulgaris has been an iconic cephalopod species for neurobiology research as well as for cephalopod aquaculture. It is one of the most intelligent and well-studied invertebrates, possessing both long- and short-term memory and the striking ability to perform complex cognitive tasks. Nevertheless, how the common octopus developed these uncommon features remains enigmatic. O. vulgaris females spawn thousands of small eggs and remain with their clutch during their entire development, cleaning, venting and protecting the eggs. In fact, eggs incubated without females usually do not develop normally, mainly due to biological contamination (fungi, bacteria, etc.). This high level of parental care might have hampered laboratory research on the embryonic development of this intriguing cephalopod.

resultsHere, we present a completely parameter-controlled artificial seawater standalone egg incubation system that replaces maternal care and allows successful embryonic development of a small-egged octopus species until hatching in a laboratory environment. We also provide a practical and detailed staging atlas based on bright-field and light sheet fluorescence microscopy imaging for precise monitoring of embryonic development. The atlas has a comparative section to benchmark stages to the different scales published by Naef (1928), Arnold (1965) and Boletzky (2016). Finally, we provide methods to monitor health and wellbeing of embryos during organogenesis.

conclusionBesides introducing the study of O. vulgaris embryonic development to a wider community, this work can be a high-quality reference for comparative evolutionary developmental biology.

Indexed as

AnimalsEmbryonic DevelopmentFemaleMicroscopy, FluorescenceOctopodiformesAtlasCephalopodDevelopmentEmbryoLight sheet fluorescence microscopyOctopusStandalone

Identifiers

PMID32299349
PMCPMC7164171

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LicenceCC BY
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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.