Results 31 to 40 of about 816 (171)

The phylum Vertebrata: a case for zoological recognition

Zoological Letters, 2018
The group Vertebrata is currently placed as a subphylum in the phylum Chordata, together with two other subphyla, Cephalochordata (lancelets) and Urochordata (ascidians). The past three decades, have seen extraordinary advances in zoological taxonomy and
Naoki Irie, Noriyuki Satoh, Shigeru Kuratani   +2 more
doaj   +1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

Origin and loss of nested LRRTM/α-catenin genes during vertebrate evolution.

PLoS ONE, 2014
Leucine-rich repeat transmembrane neuronal proteins (LRRTMs) form in mammals a family of four postsynaptic adhesion proteins, which have been shown to bind neurexins and heparan sulphate proteoglycan (HSPG) glypican on the presynaptic side.
Pavel Uvarov, Tommi Kajander, Matti S Airaksinen   +2 more
doaj   +1 more source

Characterization of dermatan sulfate and chondroitin sulfate profiles during brain regeneration in Styela plicata

The FEBS Journal, EarlyView.
Adult ascidians are capable of regenerating their entire brains following injury, and glycosaminoglycans have been shown to either promote or inhibit neuritogenesis. In this study, dermatan 2,6‐disulfate (D2,6S) was identified as the predominant complex carbohydrate in the ascidian brain.
Taynan Motta Portal, Samara de Oliveira Pimentel, Bruno da Costa Rodrigues, Mauro Sérgio Gonçalves Pavão, Rodrigo Nunes da Fonseca, Cintia Monteiro de Barros   +5 more
wiley   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

Molecular insights into electroreceptor ribbon synapses from differential gene expression in sturgeon lateral line organs

Journal of Anatomy, Volume 248, Issue 5, Page 784-805, May 2026.
The expression of various genes involved in synapse development, stability and/or function was studied in developing mechanosensory neuromasts and electrosensory ampullary organs in sterlet sturgeon. Most were shared, including Slc17a8, Slc1a3 and Nrxn3, but Cbln18 was neuromast‐restricted and Tulp1 was ampullary organ‐restricted.
Alexander S. Campbell, Martin Minařík, David Buckley, Tanmay Anand, David Gela, Martin Pšenička, Clare V. H. Baker   +6 more
wiley   +1 more source

The mitochondrial genome of Phallusia mammillata and Phallusia fumigata (Tunicata, Ascidiacea): high genome plasticity at intra-genus level

BMC Evolutionary Biology, 2007
Background Within Chordata, the subphyla Vertebrata and Cephalochordata (lancelets) are characterized by a remarkable stability of the mitochondrial (mt) genome, with constancy of gene content and almost invariant gene order, whereas the limited ...
Pesole Graziano, Griggio Francesca, Iannelli Fabio, Gissi Carmela   +3 more
doaj   +1 more source

Substrate for Thyroid Hormone Synthesis: Biochemistry, Evolution, and Physiology

The FASEB Journal, Volume 40, Issue 8, 30 April 2026.
Two proposed sequence of events for thyroxine formation in patients expressing mutant thyroglobulin. (A) (1) TSH stimulation drives expression of misfolded TG. (2) Unremitting ER stress. (3) Stress‐induced cell death. (4) Dead thyrocytes release their contents. (5) The contents become iodinated. (6) Forming thyroxine.
Crystal Young, Peter Arvan
wiley   +1 more source

Metamorphosis and lncRNAs: A Close Relationship

genesis, Volume 64, Issue 2, April 2026.
ABSTRACT The classical definition of metamorphosis is a post‐embryonic transformation, such as from a tadpole to a froglet. However, recent studies suggest this process occurs to some degree in all vertebrates, as the underlying endocrine and molecular pathways are highly conserved. With the advent of high‐throughput sequencing, transcriptomic data for
H. Herrera‐Orozco, H. A. Pérez‐Mendoza   +1 more
wiley   +1 more source

Diet composition and feeding habits of the eyespot skate, Atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae), off Uruguay and northern Argentina

Neotropical Ichthyology
The eyespot skate, Atlantoraja cyclophora, is an endemic species from the southwestern Atlantic, occurring from Rio de Janeiro, Brazil, to northern Patagonia, Argentina.
Santiago A. Barbini, Luis O. Lucifora
doaj   +1 more source