Results 71 to 80 of about 70,841 (213)

Chitin protects the gut epithelial barrier in a protochordate model of DSS-induced colitis

open access: yesBiology Open, 2018
The gastrointestinal tract of Ciona intestinalis, a solitary tunicate that siphon-filters water, shares similarities with its mammalian counterpart.
Assunta Liberti   +8 more
doaj   +1 more source

Zebrafish as a model for Catel–Manzke syndrome—identification and characterization of the zebrafish TGDS ortholog

open access: yesThe FEBS Journal, Volume 293, Issue 8, Page 2248-2269, April 2026.
Zebrafish Tgds, when expressed as a recombinant protein, catalyzes the dehydration of UDP‐D‐glucose, the initial step in the formation of 6‐deoxyhexoses. Corresponding Tgds mutations found in Catel–Manzke syndrome patients lead to reduced enzymatic activity and stability.
Maria Rosaria Coppola   +11 more
wiley   +1 more source

Microtubule sliding in swimming sperm flagella: direct and indirect measurements on sea urchin and tunicate spermatozoa [PDF]

open access: yes, 1991
Direct measurements of microtubule sliding in the flagella of actively swimming, demembranated, spermatozoa have been made using submicron diameter gold beads as markers on the exposed outer doublet microtubules.
Brokaw, Charles J.
core  

Improved genome assembly and evidence-based global gene model set for the chordate : new insight into intron and operon populations [PDF]

open access: yes, 2008
Background : The draft genome sequence of the ascidian Ciona intestinalis, along with associated gene models, has been a valuable research resource.
Yutaka Satou   +19 more
core   +3 more sources

Where Are You From? Finding the Origin of the Recently Observed Sprat in Iceland Using a Panel of SNPs

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
European sprat can be divided into distinct genetic groups in the NE Atlantic, that is, Norwegian fjords, Baltic Sea and an oceanic component. The species has been increasingly reported in Icelandic waters since 2017. To investigate the source of introduction, Icelandic sprat has been genotyped and analyzed in comparison with existing reference data ...
María Quintela   +7 more
wiley   +1 more source

Fibronectin Contributes To Notochord Intercalation In The Invertebrate Chordate, Ciona Intestinalis [PDF]

open access: yes, 2016
Background: Genomic analysis has upended chordate phylogeny, placing the tunicates as the sister group to the vertebrates. This taxonomic rearrangement raises questions about the emergence of a tunicate/vertebrate ancestor.
Cha, A.   +4 more
core   +1 more source

Experiments on Ciona intestinalis [PDF]

open access: yesNature, 1924
SINCE I had the pleasure of making copies, the only ones, I think, of Dr. Kammerer's photographs of Ciona during his visit to England, and believe that Prof. MacBride is not at the moment in possession of a complete set, I am taking the liberty of supplying the details requested by Mr. Cunningham in his letter to NATURE of December 15.
openaire   +1 more source

Parallel visual circuitry in a basal chordate

open access: yeseLife, 2019
A common CNS architecture is observed in all chordates, from vertebrates to basal chordates like the ascidian Ciona. Ciona stands apart among chordates in having a complete larval connectome.
Matthew J Kourakis   +6 more
doaj   +1 more source

Genetics in the Ocean's Twilight Zone: Population Structure of the Silvery Lightfish Across Its Distribution Range

open access: yesEvolutionary Applications, Volume 19, Issue 3, March 2026.
ABSTRACT The large estimates of mesopelagic fish biomass have long fuelled harvesting interests in the relatively untouched twilight zone of the ocean. The silvery lightfish—one of the most abundant species inhabiting the North Atlantic mesopelagic layer—is a candidate for such a fishery despite its enormous ecological importance and the insufficient ...
María Quintela   +17 more
wiley   +1 more source

The Amphioxus SoxB Family: Implications for the Evolution of Vertebrate Placodes [PDF]

open access: yes, 2007
Cranial placodes are regions of thickened ectoderm that give rise to sense organs and ganglia in the vertebrate head. Homologous structures are proposed to exist in urochordates, but have not been found in cephalochordates, suggesting the first chordates
Bronner-Fraser, Marianne   +1 more
core   +1 more source

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