ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2022
Embryonic specializations for vertebrate placentation.
Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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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.
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.
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Who cites it
13 citing papers in PubMed, 27 citations in OpenAlex.
- Genome-Wide Mining of lncRNAs Reveals Their Potential Regulatory Role in the Evolution of Viviparity.Integrative zoology · 2026Article
- Placental crises: disruptive selection and maternal under-investment as the foundations of mammalian placental evolution and dysfunction.Biological reviews of the Cambridge Philosophical Society · 2026Review
- Comparative single-cell analysis of black rockfish (Sebastes schlegelii) ovarian stroma reveals placenta-like adaptations toward viviparity.Communications biology · 2026Article
- The vertebrate yolk sac: evolutionary origins and current advances in in vitro models.Development (Cambridge, England) · 2026Review
- Population differences in embryonic developmental timing in the lizard Diploderma swinhonis.PloS one · 2026Article
- Non-lethal imaging and modeling approaches for estimating dry mass in aquatic larvae.PloS one · 2026Article
- The human placenta and its role in reproductive outcomes revisited.Physiological reviews · 2025Review
- Changes to the reproductive microbiome of the brood pouch during male pregnancy in seahorses (Hippocampus abdominalis).Reproduction (Cambridge, England) · 2025Article
- The extension of mammalian pregnancy required taming inflammation: Independent evolution of extended placentation in the tammar wallaby.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Livestock species as emerging models for genomic imprinting.Frontiers in cell and developmental biology · 2024Review
- Distinguishing Between Embryonic Provisioning Strategies in Teleost Fishes Using a Threshold Value for Parentotrophy.Biomolecules · 2023Review
- Extraembryonic tissues: exploring concepts, definitions and functions across the animal kingdom.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Different Genes are Recruited During Convergent Evolution of Pregnancy and the Placenta.Molecular biology and evolution · 2022Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The vertebrate placenta, a close association of fetal and parental tissue for physiological exchange, has evolved independently in sharks, teleost fishes, coelacanths, amphibians, squamate reptiles and mammals. This transient organ forms during pregnancy and is an important contributor to embryonic development in both viviparous and oviparous, brooding species. Placentae may be involved in transport of respiratory gases, wastes, immune molecules, hormones and nutrients. Depending on the taxon, the embryonic portion of the placenta is comprised of either extraembryonic membranes (yolk sac or chorioallantois) or temporary embryonic tissues derived via hypertrophy of pericardium, gill epithelium, gut, tails or fins. These membranes and tissues have been recruited convergently into placentae in several lineages. Here, we highlight the diversity and common features of embryonic tissues involved in vertebrate placentation and suggest future studies that will provide new knowledge about the evolution of pregnancy. This article is part of the theme issue 'Extraembryonic tissues: exploring concepts, definitions and functions across the animal kingdom'.
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Registered trials
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.