Results 41 to 50 of about 2,229 (180)
Concatenated analysis sheds light on early metazoan evolution and fuels a modern "urmetazoon" hypothesis. [PDF]
PLoS Biology, 2009 For more than a century, the origin of metazoan animals has been debated. One aspect of this debate has been centered on what the hypothetical "urmetazoon" bauplan might have been.
Bernd Schierwater +7 more
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Placozoan fiber cells: mediators of innate immunity and participants in wound healing
Scientific Reports, 2021 Placozoa is a phylum of non-bilaterian marine animals. These small, flat organisms adhere to the substrate via their densely ciliated ventral epithelium, which mediates mucociliary locomotion and nutrient uptake.
Tatiana D. Mayorova +7 more
doaj +1 more source
The early ANTP gene repertoire: insights from the placozoan genome. [PDF]
PLoS ONE, 2008 The evolution of ANTP genes in the Metazoa has been the subject of conflicting hypotheses derived from full or partial gene sequences and genomic organization in higher animals.
Bernd Schierwater +5 more
doaj +1 more source
Evolution of the Cdk4/6-Cdkn2 system in invertebrates. [PDF]
Genes CellsHypothesis on the evolution of the Cdkn2 locus. (a) Loss of Cdkn2 occurred multiple times. (b) Evolution of microsynteny at the Cdkn2 locus. Cdkn2e is a hypothetical transient gene. Abstract The cell cycle is driven by cyclin‐dependent kinases (Cdks). The decision whether the cell cycle proceeds is made during G1 phase, when Cdk4/6 functions.
Yuki S +5 more
europepmc +2 more sources
Comparative genomics of large mitochondria in placozoans.
PLoS Genetics, 2007 The first sequenced mitochondrial genome of a placozoan, Trichoplax adhaerens, challenged the conventional wisdom that a compact mitochondrial genome is a common feature among all animals.
Ana Y Signorovitch +2 more
doaj +1 more source
Innate immunity in the simplest animals – placozoans
BMC Genomics, 2019 Background Innate immunity provides the core recognition system in animals for preventing infection, but also plays an important role in managing the relationship between an animal host and its symbiont.
Kai Kamm, Bernd Schierwater, Rob DeSalle
doaj +1 more source
Rho Family of Ras-Like GTPases in Early-Branching Animals
Cells, 2020 Non-bilaterian animals consist of four phyla; Porifera, Cnidaria, Ctenophora, and Placozoa. These early-diverging animals are crucial for understanding the evolution of the entire animal lineage.
Silvestar Beljan +2 more
doaj +1 more source
New insights into placozoan sexual reproduction and development.
PLoS ONE, 2011 Unraveling animal life cycles and embryonic development is basic to understanding animal biology and often sheds light on phylogenetic relationships. A key group for understanding the evolution of the Metazoa is the early branching phylum Placozoa, which
Michael Eitel +4 more
doaj +1 more source
Tropical Medicine and Infectious Disease, 2021 In 2009, apicortin was identified in silico as a characteristic protein of apicomplexans that also occurs in the placozoa, Trichoplax adhaerens. Since then, it has been found that apicortin also occurs in free-living cousins of apicomplexans (chromerids)
Ferenc Orosz
doaj +1 more source
Let’s end taxonomic blank slates with molecular morphology
Frontiers in Ecology and Evolution, 2022 Many known evolutionary lineages have yet to be described formally due to a lack of traditional morphological characters. This is true for genetically distinctive groups within the amoeboid Placozoa animals, the protists in ponds, and the bacteria that ...
Michael Tessler +8 more
doaj +1 more source