Evidence map›Paper›PMID 27486265›Full record

ReviewReproduction (Cambridge, England)2016

The evolution of the placenta.

R Michael Roberts, Jonathan A Green, Laura C Schulz

Open access · bronzeAbstract readReview
In one paragraph

Review in Reproduction (Cambridge, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed, 1 pooled it
13.8field-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

108 citing papers in PubMed, 1 synthesis or guideline pooled it, 199 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Update on endogenous retroviruses in cattle placenta.The Journal of reproduction and development · 2026
    Review
  11. Prenatal Cannabis and Tobacco: Studies in Animal Models.Advances in experimental medicine and biology · 2026
    Review
  12. Article
  13. Article
  14. Evidence for coopetition at the maternal-fetal interface shaping placental invasion.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

48 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

3 authors at 2 institutions in 1 country.

R Michael RobertsC.S. Bond Life Sciences CenterUniversity of Missouri, Columbia, Missouri, USA Division of Animal SciencesUniversity of Missouri, Columbia, Missouri, USA robertsrm@missouri.edu.
Jonathan A GreenDivision of Animal SciencesUniversity of Missouri, Columbia, Missouri, USA.
Laura C SchulzDepartment of ObstetricsGynecology and Women's Health, University of Missouri School of Medicine, Columbia, Missouri, USA.
University of Missouri · USUniversity of Missouri Health System · US

Funding

Induced Pluripotent Stem Cells from Swine: application to genetic modificationR01HD069979 · NICHD · UNIVERSITY OF MISSOURI-COLUMBIA · PI ROBERTS, R. MICHAEL · 2012 to 2016
$1.5M
NICHD NIH HHS R01 HD069979
6 · The paper itself

Abstract

The very apt definition of a placenta is coined by Mossman, namely apposition or fusion of the fetal membranes to the uterine mucosa for physiological exchange. As such, it is a specialized organ whose purpose is to provide continuing support to the developing young. By this definition, placentas have evolved within every vertebrate class other than birds. They have evolved on multiple occasions, often within quite narrow taxonomic groups. As the placenta and the maternal system associate more intimately, such that the conceptus relies extensively on maternal support, the relationship leads to increased conflict that drives adaptive changes on both sides. The story of vertebrate placentation, therefore, is one of convergent evolution at both the macromolecular and molecular levels. In this short review, we first describe the emergence of placental-like structures in nonmammalian vertebrates and then transition to mammals themselves. We close the review by discussing the mechanisms that might have favored diversity and hence evolution of the morphology and physiology of the placentas of eutherian mammals.

Indexed as

Biological EvolutionPlacentationAnimalsFemaleHumansPlacentaPregnancy

Identifiers

PMID27486265
PMCPMC5033709
OpenAlexW2521898456

What OpenQuestion holds

Textmetadata
LicenceTDM
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.