Evidence map›Paper›PMID 27216622›Full record

ArticleBMC evolutionary biology2016

Do novel genes drive morphological novelty? An investigation of the nematosomes in the sea anemone Nematostella vectensis.

Leslie S Babonis, Mark Q Martindale, Joseph F Ryan

Open access · goldAbstract read
In one paragraph

Article in BMC evolutionary biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
21.4field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
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  4. Evolution of the essential geneProceedings of the National Academy of Sciences of the United States of America · 2025
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  12. A novel regulatory gene promotes novel cell fate by suppressing ancestral fate in the sea anemoneProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Toxin-like neuropeptides in the sea anemoneProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  18. Looking Down on NF-κB.Molecular and cellular biology · 2020
    Review
  19. Article
  20. 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

3 authors at 2 institutions in 1 country.

Leslie S BabonisWhitney Laboratory for Marine Bioscience, University of Florida, 9505 Ocean Shore Blvd, St. Augustine, FL, 32080, USA. babonis@whitney.ufl.edu.
Mark Q MartindaleWhitney Laboratory for Marine Bioscience, University of Florida, 9505 Ocean Shore Blvd, St. Augustine, FL, 32080, USA.
Joseph F RyanWhitney Laboratory for Marine Bioscience, University of Florida, 9505 Ocean Shore Blvd, St. Augustine, FL, 32080, USA.
University of Florida · USWhitney Museum of American Art · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe evolution of novel genes is thought to be a critical component of morphological innovation but few studies have explicitly examined the contribution of novel genes to the evolution of novel tissues. Nematosomes, the free-floating cellular masses that circulate through the body cavity of the sea anemone Nematostella vectensis, are the defining apomorphy of the genus Nematostella and are a useful model for understanding the evolution of novel tissues. Although many hypotheses have been proposed, the function of nematosomes is unknown. To gain insight into their putative function and to test hypotheses about the role of lineage-specific genes in the evolution of novel structures, we have re-examined the cellular and molecular biology of nematosomes.

resultsUsing behavioral assays, we demonstrate that nematosomes are capable of immobilizing live brine shrimp (Artemia salina) by discharging their abundant cnidocytes. Additionally, the ability of nematosomes to engulf fluorescently labeled bacteria (E. coli) reveals the presence of phagocytes in this tissue. Using RNA-Seq, we show that the gene expression profile of nematosomes is distinct from that of the tentacles and the mesenteries (their tissue of origin) and, further, that nematosomes (a Nematostella-specific tissue) are enriched in Nematostella-specific genes.

conclusionsDespite the small number of cell types they contain, nematosomes are distinct among tissues, both functionally and molecularly. We provide the first evidence that nematosomes comprise part of the innate immune system in N. vectensis, and suggest that this tissue is potentially an important place to look for genes associated with pathogen stress. Finally, we demonstrate that Nematostella-specific genes comprise a significant proportion of the differentially expressed genes in all three of the tissues we examined and may play an important role in novel cell functions.

Indexed as

Biological EvolutionAnimalsBehavior, AnimalEscherichia coliGene Expression RegulationPhagocytesPhagocytosisPredatory BehaviorSea AnemonesTranscriptomeCnidocyteImmuneNematosomeNematostella vectensisNoveltyPhagocytosisRNA-SeqTaxonomically-restricted genes

Identifiers

PMID27216622
PMCPMC4877951
OpenAlexW2403119545

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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.