Evidence map›Paper›PMID 20920349›Full record

ArticleEvoDevo2010

Genomic insights into Wnt signaling in an early diverging metazoan, the ctenophore Mnemiopsis leidyi.

Kevin Pang, Joseph F Ryan, NISC Comparative Sequencing Program, James C Mullikin, Andreas D Baxevanis, Mark Q Martindale

Open access · goldAbstract read
In one paragraph

Article in EvoDevo, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
12.5field-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

66 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
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  9. Article
  10. The origin and evolution of Wnt signalling.Nature reviews. Genetics · 2024
    Review
  11. Morphological and dietary changes encoded in the genome ofNAR genomics and bioinformatics · 2024
    Article
  12. Article
  13. Article
  14. The salamander blastema within the broader context of metazoan regeneration.Frontiers in cell and developmental biology · 2023
    Review
  15. Article
  16. Review
  17. Article
  18. Studying Ctenophora WBR Using Mnemiopsis leidyi.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  19. Review
  20. Article

6 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Kevin PangKewalo Marine Laboratory, Pacific Biosciences Research Center, University of Hawaii at Manoa, Honolulu, HI, USA. mqmartin@hawaii.edu.
Joseph F Ryan
NISC Comparative Sequencing Program
James C Mullikin
Andreas D Baxevanis
Mark Q Martindale
National Institutes of Health · USUniversity of Hawaiʻi at Mānoa · US

Funding

Inter- and Intra-Species Comparative SequencingZIBHG000196 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI THOMAS, JAMES · 2009 to 2025
$177.6M
Comparative Genomics Unit ResearchZIAHG200330 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI MULLIKIN, JAMES C · 2009 to 2022
$17.9M
Phylogenomic Studies on the Evolution of Morphological ComplexityZIAHG000140 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI BAXEVANIS, ANDREAS · 2009 to 2025
$11.4M
6 · The paper itself

Abstract

backgroundIntercellular signaling pathways are a fundamental component of the integrating cellular behavior required for the evolution of multicellularity. The genomes of three of the four early branching animal phyla (Cnidaria, Placozoa and Porifera) have been surveyed for key components, but not the fourth (Ctenophora). Genomic data from ctenophores could be particularly relevant, as ctenophores have been proposed to be one of the earliest branching metazoan phyla.

resultsA preliminary assembly of the lobate ctenophore Mnemiopsis leidyi genome generated using next-generation sequencing technologies were searched for components of a developmentally important signaling pathway, the Wnt/β-catenin pathway. Molecular phylogenetic analysis shows four distinct Wnt ligands (MlWnt6, MlWnt9, MlWntA and MlWntX), and most, but not all components of the receptor and intracellular signaling pathway were detected. In situ hybridization of the four Wnt ligands showed that they are expressed in discrete regions associated with the aboral pole, tentacle apparati and apical organ.

conclusionsCtenophores show a minimal (but not obviously simple) complement of Wnt signaling components. Furthermore, it is difficult to compare the Mnemiopsis Wnt expression patterns with those of other metazoans. mRNA expression of Wnt pathway components appears later in development than expected, and zygotic gene expression does not appear to play a role in early axis specification. Notably absent in the Mnemiopsis genome are most major secreted antagonists, which suggests that complex regulation of this secreted signaling pathway probably evolved later in animal evolution.

Identifiers

PMID20920349
PMCPMC2959043
OpenAlexW2123456802

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.