Evidence map›Paper›PMID 22991443›Full record

ArticleDevelopment (Cambridge, England)2012

Autonomy in specification of primordial germ cells and their passive translocation in the sea urchin.

Mamiko Yajima, Gary M Wessel

Abstract read
In one paragraph

Article in Development (Cambridge, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
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  4. Article
  5. Review
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  9. Article
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  11. Review
  12. Article
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  15. Article
  16. Germ Line Mechanics--And Unfinished Business.Current topics in developmental biology · 2016
    Review
  17. Article
  18. Influence of cell polarity on early development of the sea urchin embryo.Developmental dynamics : an official publication of the American Association of Anatomists · 2015
    Article
  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

2 authors.

Mamiko YajimaMCB Department, Brown University, 185 Meeting Street, BOX-GL173, Providence, RI 02912, USA. mamiko_yajima@brown.edu
Gary M Wessel

Funding

Post-translational Regulation of Germline DeterminantsR01HD028152 · NICHD · BROWN UNIVERSITY · PI WESSEL, GARY M · 1997 to 2016
$3.9M
NICHD NIH HHS 2R01HD028152NICHD NIH HHS R01 HD028152
6 · The paper itself

Abstract

The process of germ line determination involves many conserved genes, yet is highly variable. Echinoderms are positioned at the base of Deuterostomia and are crucial to understanding these evolutionary transitions, yet the mechanism of germ line specification is not known in any member of the phyla. Here we demonstrate that small micromeres (SMics), which are formed at the fifth cell division of the sea urchin embryo, illustrate many typical features of primordial germ cell (PGC) specification. SMics autonomously express germ line genes in isolated culture, including selective Vasa protein accumulation and transcriptional activation of nanos; their descendants are passively displaced towards the animal pole by secondary mesenchyme cells and the elongating archenteron during gastrulation; Cadherin (G form) has an important role in their development and clustering phenotype; and a left/right integration into the future adult anlagen appears to be controlled by a late developmental mechanism. These results suggest that sea urchin SMics share many more characteristics typical of PGCs than previously thought, and imply a more widely conserved system of germ line development among metazoans.

Indexed as

GastrulationAnimalsBlastomeresCadherinsCell DifferentiationCells, CulturedEmbryo, NonmammalianGastrulaGene Expression Regulation, DevelopmentalGerm CellsLarvaStrongylocentrotus purpuratusTranscriptional ActivationCadherins

Identifiers

PMID22991443
PMCPMC3445309

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.