Results 61 to 70 of about 3,781 (217)
A fragmented metazoan organellar genome [PDF]
, 2008 Background: Animal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and sometimes subdivided into two to presumably four ...
Erpenbeck, Dirk +2 more
core +1 more source
Scientific Reports, 2020 Nitric oxide (NO) is a ubiquitous gaseous messenger, but we know little about its early evolution. Here, we analyzed NO synthases (NOS) in four different species of placozoans—one of the early-branching animal lineages. In contrast to other invertebrates
L. Moroz +7 more
semanticscholar +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
Two intracellular and cell type-specific bacterial symbionts in the placozoan Trichoplax H2
, 2019 Placozoa is an enigmatic phylum of simple, microscopic, marine metazoans(1,2). Although intracellular bacteria have been found in all members of this phylum, almost nothing is known about their identity, location and interactions with their host(3-6). We
Dubilier, N. +7 more
core +1 more source
The origin of the Hox/ParaHox genes, the Ghost Locus hypothesis and the complexity of the first animal [PDF]
, 2015 A key aim in evolutionary biology is to deduce ancestral states in order to better understand the evolutionary origins of clades of interest and the diversification process(es) that have elaborated them.
Ferrier, David E. K.
core +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
The phylogenetic position of ctenophores and the origin(s) of nervous systems [PDF]
, 2015 Ctenophores have traditionally been treated as eumetazoans, but some recent whole genome studies have revived the idea that they are, rather, the sister group to all other metazoans.
Jákely, Gáspár +2 more
core +3 more sources
An evaluation of the evolution of the gene structure of dystroglycan [PDF]
, 2017 BACKGROUND: Dystroglycan (DG) is an adhesion receptor complex composed of two non-covalently associated subunits, transcribed from a single gene. The extracellular α-DG is highly and heterogeneously glycosylated and binds with high affinity to laminins ...
Adams, Josephine C, Brancaccio, Andrea
core +3 more sources
Placozoa Are Not Derived Cnidarians: Evidence from Molecular Morphology [PDF]
Molecular Biology and Evolution, 2003 The phylum Placozoa is represented by a single known species, Trichoplax adhaerens, a tiny marine organism that represents the most simple metazoan bauplan. Because of the latter, placozoans were originally considered the most basal metazoan phylum.
Andrea, Ender, Bernd, Schierwater
openaire +2 more sources
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