Results 21 to 30 of about 1,519 (159)

Conserved novel ORFs in the mitochondrial genome of the ctenophore Beroe forskalii [PDF]

PeerJ, 2020
To date, five ctenophore species’ mitochondrial genomes have been sequenced, and each contains open reading frames (ORFs) that if translated have no identifiable orthologs. ORFs with no identifiable orthologs are called unidentified reading frames (URFs).
Darrin T. Schultz, Jordan M. Eizenga, Russell B. Corbett-Detig, Warren R. Francis, Lynne M. Christianson, Steven H.D. Haddock   +5 more
doaj   +2 more sources

Life beneath the ice: jellyfish and ctenophores from the Ross Sea, Antarctica, with an image-based training set for machine learning [PDF]

Biodiversity Data Journal, 2021
Southern Ocean ecosystems are currently experiencing increased environmental changes and anthropogenic pressures, urging scientists to report on their biodiversity and biogeography.
Gerlien Verhaegen, Emiliano Cimoli, Dhugal Lindsay   +2 more
doaj   +3 more sources

Records of ctenophores from South Africa

PeerJ, 2021
Although ctenophores can be conspicuous components of the plankton in coastal marine ecosystems, only six species have been formally described from around South Africa. Using photographs from local community scientists, we add a further three species ( Cestum veneris, Beroe forskalii ?,
Gibbons, Mark J., Haddock, Steve H.D., Matsumoto, George I., Foster, Craig   +3 more
openaire   +3 more sources

Morphological and dietary changes encoded in the genome of Beroe ovata, a ctenophore-eating ctenophore. [PDF]

NAR Genom Bioinform
Abstract As the sister group to all other animals, ctenophores (comb jellies) are important for understanding the emergence and diversification of numerous animal traits. Efforts to explore the evolutionary processes that promoted diversification within Ctenophora are hindered by undersampling genomic diversity within this clade.
Vargas AM, DeBiasse MB, Dykes LL, Edgar A, Hayes TD, Groso DJ, Babonis LS, Martindale MQ, Ryan JF.   +8 more
europepmc   +3 more sources

Medusae, siphonophores and ctenophores of the Magellan Region

Scientia Marina, 1999
Medusae, siphonophores and ctenophores were conspicuous and relatively abundant organisms in the Magellan Straits, Beagle Channel and adjacent waters during the Victor Hensen campaign in 1994.
Francesc Pagès, Covadonga Orejas
doaj   +1 more source

Occurrence of Isopenicillin-N-Synthase Homologs in Bioluminescent Ctenophores and Implications for Coelenterazine Biosynthesis. [PDF]

PLoS ONE, 2015
The biosynthesis of the luciferin coelenterazine has remained a mystery for decades. While not all organisms that use coelenterazine appear to make it themselves, it is thought that ctenophores are a likely producer.
Warren R Francis, Nathan C Shaner, Lynne M Christianson, Meghan L Powers, Steven H D Haddock   +4 more
doaj   +1 more source

Discovery, prevalence, and persistence of novel circular single-stranded DNA viruses in the ctenophores Mnemiopsis leidyi and Beroe ovata

Frontiers in Microbiology, 2015
Gelatinous zooplankton, such as ctenophores and jellyfish, are important components of marine and brackish ecosystems and play critical roles in aquatic biogeochemistry.
Mya eBreitbart, Bayleigh E Benner, Parker E Jernigan, Karyna eRosario, Laura M Birsa, Laura M Birsa, Rachel eHarbeitner, Sidney eFulford, Carina eGraham, Anna eWalters, Dawn B Goldsmith, Stella A Berger, Stella A Berger, Jens C Nejstgaard, Jens C Nejstgaard   +14 more
doaj   +1 more source

Cortical cytasters: a highly conserved developmental trait of Bilateria with similarities to Ctenophora

EvoDevo, 2011
Background Cytasters (cytoplasmic asters) are centriole-based nucleation centers of microtubule polymerization that are observable in large numbers in the cortical cytoplasm of the egg and zygote of bilaterian organisms.
Salinas-Saavedra Miguel, Vargas Alexander O   +1 more
doaj   +1 more source

Interannual variation in the composition of the assemblages of medusae and ctenophores in St. Helena Bay, Southern Benguela Ecosystem

Scientia Marina, 2000
The assemblages of medusae and ctenophores were examined from samples collected each winter from St Helena Bay, over the 10-year period 1988-1997.
Emmanuelle Buecher, Mark John Gibbons
doaj   +1 more source

The sex lives of ctenophores: the influence of light, body size, and self-fertilization on the reproductive output of the sea walnut, Mnemiopsis leidyi [PDF]

PeerJ, 2016
Ctenophores (comb jellies) are emerging as important animals for investigating fundamental questions across numerous branches of biology (e.g., evodevo, neuroscience and biogeography).
Daniel A. Sasson, Joseph F. Ryan
doaj   +2 more sources