Results 61 to 70 of about 1,315 (139)
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
Comparative genomics of neuroglobin reveals its early origins. [PDF]
PLoS ONE, 2012 Neuroglobin (Ngb) is a hexacoordinated globin expressed mainly in the central and peripheral nervous system of vertebrates. Although several hypotheses have been put forward regarding the role of neuroglobin, its definite function remains uncertain.
Jasmin Dröge +3 more
doaj +1 more source
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
doaj +1 more source
Early evolution of the LIM homeobox gene family
BMC Biology, 2010 Background LIM homeobox (Lhx) transcription factors are unique to the animal lineage and have patterning roles during embryonic development in flies, nematodes and vertebrates, with a conserved role in specifying neuronal identity.
Degnan Bernard M +6 more
doaj +1 more source
Phylogenetic position of Placozoa based on large subunit (LSU) and small subunit (SSU) rRNA genes
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 +1 more source
The origin and evolution of G protein-coupled receptor kinases. [PDF]
PLoS ONE, 2012 G protein-coupled receptor (GPCR) kinases (GRKs) play key role in homologous desensitization of GPCRs. GRKs phosphorylate activated receptors, promoting high affinity binding of arrestins, which precludes G protein coupling.
Arcady Mushegian +2 more
doaj +1 more source
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 +1 more source
DNA Content and Fragmentation of the Egg Nucleus of Trichoplax adhaerens
Zeitschrift für Naturforschung C, 1981 Abstract Under culture conditions the egg nucleus of Trichoplax adhaerens reaches an unusually high and variable DNA content. Before the "fertilization membrane" is formed, the nucleus undergoes fragmentation. It is assumed that culture conditions differ from natural conditions by preventing the switch-over from the S-phase to the G 2 ...
A. Ruthmann, K. G. Grell, G. Benwitz
openaire +1 more source
ParaHox Genes Revisited: From Gut Patterning to Integrated Axial and Neural Organization in Rotifera
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 4, Page 357-369, June 2026.In rotifers, ParaHox genes show a dispersed genomic organization, with Xlox absent across gnathiferans. Exclusive neuronal expression of Gsx and Cdx reveals that ancestral ParaHox genes coordinated neural and epithelial development beyond gut patterning, suggesting an integrated role in early bilaterian body plan organization.
Andreas C. Fröbius +2 more
wiley +1 more source
Identification of 526 conserved metazoan genetic innovations exposes a new role for cofactor E-like in neuronal microtubule homeostasis. [PDF]
PLoS Genetics, 2013 The evolution of metazoans from their choanoflagellate-like unicellular ancestor coincided with the acquisition of novel biological functions to support a multicellular lifestyle, and eventually, the unique cellular and physiological demands of ...
Melissa Y Frédéric +11 more
doaj +1 more source