ArticleNature2014
The ctenophore genome and the evolutionary origins of neural systems.
Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 327 papers.
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.
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.
Who cites it
327 citing papers in PubMed, 745 citations in OpenAlex.
- Functional Analysis of Ligand-Gated Chloride Channels in a Cnidarian Sheds Light on the Evolution of Inhibitory Signaling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Organization of the ctenophore tentacular apparatus: AdultiScience · 2026Article
- Curing the brain: in search for new astrocyte-specific therapies.Experimental & molecular medicine · 2026Review
- The 3D architecture of the ctenophore aboral organ and the evolution of complex integrative centers in animals.Science advances · 2026Article
- Neural connectome of the ctenophore statocyst.eLife · 2026Article
- The evolutionary origins of synaptic proteins and their changing roles in different organisms across evolution.Nature reviews. Neuroscience · 2026Review
- Article
- Article
- An Integrated Canonical and Non-Canonical Wnt Signaling Network Controls Early Anterior-Posterior Axis Formation in Sea Urchin Embryos.Journal of developmental biology · 2025Review
- Neurite branching is associated with mixed microtubule polarity in sea anemone neurons.The Journal of experimental biology · 2025Article
- Beyond synapses: cytoplasmic connections in brain function and evolution.Biological reviews of the Cambridge Philosophical Society · 2025Review
- β-Catenin localization in the ctenophore Mnemiopsis leidyi suggests an ancestral role in cell adhesion and nuclear function.Developmental dynamics : an official publication of the American Association of Anatomists · 2025Article
- The life cycle of type IV collagen.Matrix biology : journal of the International Society for Matrix Biology · 2025Review
- Article
- Article
- Ctenophores and parahoxozoans independently evolved functionally diverse voltage-gated K+ channels.The Journal of general physiology · 2025Article
- Roots and early routes of neuroendocrinology.Cell and tissue research · 2025Review
- Neuropeptides: The Evergreen Jack-of-All-Trades in Neuronal Circuit Development and Regulation.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025Review
- Article
- Article
267 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Commented on by
Authors and funding
36 authors at 15 institutions in 6 countries.
Funding
Abstract
The origins of neural systems remain unresolved. In contrast to other basal metazoans, ctenophores (comb jellies) have both complex nervous and mesoderm-derived muscular systems. These holoplanktonic predators also have sophisticated ciliated locomotion, behaviour and distinct development. Here we present the draft genome of Pleurobrachia bachei, Pacific sea gooseberry, together with ten other ctenophore transcriptomes, and show that they are remarkably distinct from other animal genomes in their content of neurogenic, immune and developmental genes. Our integrative analyses place Ctenophora as the earliest lineage within Metazoa. This hypothesis is supported by comparative analysis of multiple gene families, including the apparent absence of HOX genes, canonical microRNA machinery, and reduced immune complement in ctenophores. Although two distinct nervous systems are well recognized in ctenophores, many bilaterian neuron-specific genes and genes of 'classical' neurotransmitter pathways either are absent or, if present, are not expressed in neurons. Our metabolomic and physiological data are consistent with the hypothesis that ctenophore neural systems, and possibly muscle specification, evolved independently from those in other animals.
Indexed as
Identifiers
What OpenQuestion holds
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.