Results 1 to 10 of about 6,604 (202)

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

Ctenophora hunanensis sp. nov. (Bacillariophyta) from the Yongle River in Hunan Province, China [PDF]

open access: yesPhytoKeys
A new species, Ctenophora hunanensis Bing Liu & Rioual, sp. nov., found in the Yongle River, a tributary of the Xiang River (Hunan Province, southern China) is described on the basis of morphological observations made under light and scanning ...
Dong-Qin Xiang   +4 more
doaj   +4 more sources

Meeting report of Ctenopalooza: the first international meeting of ctenophorologists [PDF]

open access: yesEvoDevo, 2016
Here we present a report on Ctenopalooza: A meeting of ctenophorologists held at the Whitney Laboratory for Marine Bioscience in St. Augustine, FL, USA, on March 14–15, 2016.
Joseph F. Ryan   +2 more
doaj   +4 more sources

Apicortin, a Putative Apicomplexan-Specific Protein, Is Present in Deep-Branching Opisthokonts [PDF]

open access: yesBiology
Apicortin, a tubulin/microtubule-binding protein, was first described in 2009 as a protein characteristic of apicomplexans; it was found to be present in all Apicomplexa genomes already sequenced.
Ferenc Orosz
doaj   +2 more sources

Neuromuscular organization of the benthic ctenophore, Vallicula multiformis [PDF]

open access: yesZoological Letters
Ctenophora is the earliest metazoan taxon with neurons and muscles. Recent studies have described genetic, physiological, and cellular characteristics of the neural and muscular systems of this phylogenically important lineage.
Kurato Mohri, Hiroshi Watanabe
doaj   +2 more sources

Evolution of glial cells: a non-bilaterian perspective [PDF]

open access: yesNeural Development
Nervous systems of bilaterian animals generally consist of two cell types: neurons and glial cells. Despite accumulating data about the many important functions glial cells serve in bilaterian nervous systems, the evolutionary origin of this abundant ...
Larisa Sheloukhova, Hiroshi Watanabe
doaj   +2 more sources

Flow cytometry methods for targeted isolation of ctenophore cells

open access: yesFrontiers in Marine Science, 2023
Cell suspension fluidics, such as flow cytometry (FCS) and fluorescence-activated cell sorting (FACS), facilitates the identification and precise separation of individual cells based on phenotype.
Abigail C. Dieter   +9 more
doaj   +1 more source

Speciation of pelagic zooplankton: Invisible boundaries can drive isolation of oceanic ctenophores

open access: yesFrontiers in Genetics, 2022
The study of evolution and speciation in non-model systems provides us with an opportunity to expand our understanding of biodiversity in nature. Connectivity studies generally focus on species with obvious boundaries to gene flow, but in open-ocean ...
Shannon B. Johnson   +9 more
doaj   +1 more source

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

Early animal evolution: a morphologist's view [PDF]

open access: yesRoyal Society Open Science, 2019
Two hypotheses for the early radiation of the metazoans are vividly discussed in recent phylogenomic studies, the ‘Porifera-first’ hypothesis, which places the poriferans as the sister group of all other metazoans, and the ‘Ctenophora-first’ hypothesis ...
Claus Nielsen
doaj   +1 more source

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