Results 11 to 20 of about 3,380 (178)

Dendrogramma, new genus, with two new non-bilaterian species from the marine bathyal of southeastern Australia (Animalia, Metazoa incertae sedis)--with similarities to some medusoids from the Precambrian Ediacara. [PDF]

open access: yesPLoS ONE, 2014
A new genus, Dendrogramma, with two new species of multicellular, non-bilaterian, mesogleal animals with some bilateral aspects, D. enigmatica and D. discoides, are described from the south-east Australian bathyal (400 and 1000 metres depth).
Jean Just   +3 more
doaj   +10 more sources

Identification, distribution and molecular evolution of the pacifastin gene family in Metazoa [PDF]

open access: yesBMC Evolutionary Biology, 2009
Background Members of the pacifastin family are serine peptidase inhibitors, most of which are produced as multi domain precursor proteins. Structural and biochemical characteristics of insect pacifastin-like peptides have been studied intensively, but ...
Van Soest Sofie   +4 more
doaj   +4 more sources

Evolution of iGluR ligand specificity, polyamine regulation, and ion selectivity inferred from a placozoan epsilon receptor [PDF]

open access: yesCommunications Biology
Epsilon ionotropic glutamate receptors (iGluRs) are a recently defined clade of neurotransmitter receptors that are found in all major metazoan lineages that are distinct from α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), kainate, delta ...
Anhadvir Singh   +9 more
doaj   +2 more sources

The ancestral architecture of the immune system in simplest animals [PDF]

open access: yesFrontiers in Immunology
Daria Y. Romanova   +2 more
doaj   +2 more sources

Transposon-derived transcription factors across metazoans

open access: yesFrontiers in Cell and Developmental Biology, 2023
Transposable elements (TE) could serve as sources of new transcription factors (TFs) in plants and some other model species, but such evidence is lacking for most animal lineages. Here, we discovered multiple independent co-options of TEs to generate 788 
Krishanu Mukherjee   +2 more
doaj   +1 more source

Review: The evolution of peptidergic signaling in Cnidaria and Placozoa, including a comparison with Bilateria

open access: yesFrontiers in Endocrinology, 2022
Bilateria have bilateral symmetry and are subdivided into Deuterostomia (animals like vertebrates) and Protostomia (animals like insects and mollusks).
Frank Hauser   +3 more
doaj   +1 more source

Placozoa [PDF]

open access: yesCurrent Biology, 2018
Schierwater & DeSalle introduce the enigmatic phylum Placozoa.
Bernd, Schierwater, Rob, DeSalle
openaire   +2 more sources

Deep RNA sequencing reveals the smallest known mitochondrial micro exon in animals: The placozoan cox1 single base pair exon. [PDF]

open access: yesPLoS ONE, 2017
The phylum Placozoa holds a key position for our understanding of the evolution of mitochondrial genomes in Metazoa. Placozoans possess large mitochondrial genomes which harbor several remarkable characteristics such as a fragmented cox1 gene and trans ...
Hans-Jürgen Osigus   +2 more
doaj   +1 more source

Alternative neural systems: What is a neuron? (Ctenophores, sponges and placozoans)

open access: yesFrontiers in Cell and Developmental Biology, 2022
How to make a neuron, a synapse, and a neural circuit? Is there only one ‘design’ for a neural architecture with a universally shared genomic blueprint across species?
Leonid L. Moroz   +2 more
doaj   +1 more source

Phylogenomics and the first higher taxonomy of Placozoa, an ancient and enigmatic animal phylum

open access: yesFrontiers in Ecology and Evolution, 2022
Placozoa is an ancient phylum of extraordinarily unusual animals: miniscule, ameboid creatures that lack most fundamental animal features. Despite high genetic diversity, only recently have the second and third species been named.
Michael Tessler   +18 more
doaj   +1 more source

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