Review: The evolution of peptidergic signaling in Cnidaria and Placozoa, including a comparison with Bilateria [PDF]
Frontiers 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 +7 more sources
Coordinated cellular behavior regulated by epinephrine neurotransmitters in the nerveless placozoa [PDF]
Nature CommunicationsUnderstanding how cells communicated before the evolution of nervous systems in early metazoans is key to unraveling the origins of multicellular life.
Minjun Jin +7 more
doaj +5 more sources
Global diversity of the Placozoa.
PLoS ONE, 2013 The enigmatic animal phylum Placozoa holds a key position in the metazoan Tree of Life. A simple bauplan makes it appear to be the most basal metazoan known and genetic evidence also points to a position close to the last common metazoan ancestor ...
Michael Eitel +3 more
doaj +6 more sources
Support for a clade of Placozoa and Cnidaria in genes with minimal compositional bias
eLife, 2018 The phylogenetic placement of the morphologically simple placozoans is crucial to understanding the evolution of complex animal traits. Here, we examine the influence of adding new genomes from placozoans to a large dataset designed to study the deepest ...
Christopher E Laumer +6 more
doaj +6 more sources
The enigmatic Placozoa part 1: Exploring evolutionary controversies and poor ecological knowledge [PDF]
BioEssays, Volume 43, Issue 10, October 2021., 2021 Placozoans are the simplest and maybe the first branching metazoans. Their simple body plan and their small genome with a complex genetic tool kit make them important model systems. Substantial progress has been made in many areas, but many exciting questions on placozoan biology are still waiting to be addressed.
Bernd Schierwater +10 more
wiley +7 more sources
Global Habitat Suitability and Ecological Niche Separation in the Phylum Placozoa. [PDF]
PLoS ONE, 2015 The enigmatic placozoans, which hold a key position in the metazoan Tree of Life, have attracted substantial attention in many areas of biological and biomedical research.
Omid Paknia, Bernd Schierwater
doaj +6 more sources
Animal Evolution: The Enigmatic Phylum Placozoa Revisited [PDF]
Current Biology, 2005 A recent report of high levels of genetic variation between strains of Trichoplax adhaerens challenges the traditional view that the phylum Placozoa comprises only one species. At the morphological level, placozoans are amongst the simplest extant animals, but molecular evidence suggests that they may have more complex origins.
David J. Miller, Eldon E. Ball
openalex +5 more sources
Phylogenetic position of Placozoa based on large subunit (LSU) and small subunit (SSU) rRNA genes [PDF]
Genetics and Molecular Biology, 2007 The phylum Placozoa, represented by its single species Trichoplax adhaerens, has always been considered one of the most basal animal clades due to its low morphological complexity.
Fernanda Britto da Silva +2 more
doaj +2 more sources
The enigmatic Placozoa part 2: Exploring evolutionary controversies and promising questions on earth and in space [PDF]
BioEssays, 2021 AbstractThe placozoan Trichoplax adhaerens has been bridging gaps between research disciplines like no other animal. As outlined in part 1, placozoans have been subject of hot evolutionary debates and placozoans have challenged some fundamental evolutionary concepts.
Bernd Schierwater +10 more
openalex +6 more sources
Molecular signatures for sex in the Placozoa [PDF]
Proceedings of the National Academy of Sciences, 2005 Placozoans, the simplest free-living animals, have never been observed to reproduce sexually. Here, we describe molecular evidence for sexual reproduction within one clade of the Placozoa. In a population sample of 10 individuals, within-individual and overall nucleotide diversity were similar to each other and consistent with levels observed in ...
Ana Y. Signorovitch +2 more
openalex +5 more sources