Evidence map›Paper›PMID 21573966›Full record

ReviewJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2011

A review of the evolution of viviparity in squamate reptiles: the past, present and future role of molecular biology and genomics.

Bridget F Murphy, Michael B Thompson

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Transport of maternal transthyretin to the fetus in the viviparous teleost Neoditrema ransonnetii (Perciformes, Embiotocidae).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2020
    Article
  10. A comparison of uterine contractile responsiveness to arginine vasopressin in oviparous and viviparous lizards.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2020
    Article
  11. Article
  12. Article
  13. Genomic and transcriptomic investigations of the evolutionary transition from oviparity to viviparity.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  14. An endogenous retroviral envelope syncytin and its cognate receptor identified in the viviparous placentalProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. Rapid molecular evolution across amniotes of the IIS/TOR network.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  17. Article
  18. The origin and evolution of genomic imprinting and viviparity in mammals.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    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

2 authors at 1 institution in 1 country.

Bridget F MurphySchool of Biological Sciences (A08), University of Sydney, Camperdown, NSW, 2006, Australia. bridget.murphy@sydney.edu.au
Michael B Thompson
University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Squamate reptiles (lizards and snakes) offer a unique model system for testing hypotheses about the evolutionary transition from oviparity (egg-laying) to viviparity (live-bearing) in amniote vertebrates. The evolution of squamate viviparity has occurred remarkably frequently (>108 times) and has resulted in major changes in reproductive physiology. Such frequent changes in reproductive strategy pose two questions: (1) what are the molecular mechanisms responsible for the evolution of squamate viviparity? (2) Are these molecular mechanisms the same for separate origins of viviparity? Molecular approaches, such as RT-PCR, in situ hybridisation, Western blotting and immunofluorescence, have been invaluable for identifying genes and proteins that are involved in squamate placental development, materno-foetal immunotolerance, placental transport, placental angiogenesis, hormone synthesis and hormone receptor expression. However, the candidate-gene or -protein approach that has been used until now does not allow for de novo gene/protein discovery; results to date suggest that the reproductive physiologies of mammals and squamate reptiles are very similar, but this conclusion may simply be due to a limited capacity to study the subset of genes and proteins that are unique to reptiles. Progress has also been slowed by the lack of appropriate molecular and genomic resources for squamate reptiles. The advent of next-generation sequencing provides a relatively inexpensive way to conduct rapid high-throughput sequencing of genomes and transcriptomes. We discuss the potential use of next-generation sequencing technologies to analyse differences in gene expression between oviparous and viviparous squamates, provide important sequence information for reptiles, and generate testable hypotheses for the evolution of viviparity.

Indexed as

AnimalsBiological EvolutionFemaleGenes, MHC Class IGenomicsHistocompatibility, Maternal-FetalHumansLizardsPlacentaPlacentationPregnancyReceptors, SteroidSequence Analysis, DNASnakesSteroidsUterusReceptors, SteroidSteroids

Identifiers

PMID21573966
OpenAlexW2003883868

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.