Results 21 to 30 of about 3,878 (161)

Monoaminergic modulation of photoreception in ascidian:evidence for a proto-hypothalamo-retinal territory [PDF]

, 2012
The retina of craniates/vertebrates has been proposed to derive from a photoreceptor prosencephalic territory in ancestral chordates, but the evolutionary origin of the different cell types making the retina is disputed.
Kusakabe, Takehiro G, Takeo Horie, Brown, Euan R., Razy-Krajka, Florian, Brown, Euan R, Takehiro G Kusakabe, Sasakura, Yasunori, Jacques Callebert, Yasunori Sasakura, Kusakabe, Takehiro G., Jean-Stéphane Joly, Brown, Euan R; id_orcid, Philippe Vernier, Vernier, Philippe, Callebert, Jacques, Horie, Takeo, Florian Razy-Krajka, Joly, Jean-Stéphane, Euan R Brown   +18 more
core   +1 more source

Fluorescent protein voltage probes derived from ArcLight that respond to membrane voltage changes with fast kinetics. [PDF]

PLoS ONE, 2013
We previously reported the discovery of a fluorescent protein voltage probe, ArcLight, and its derivatives that exhibit large changes in fluorescence intensity in response to changes of plasma membrane voltage.
Zhou Han, Lei Jin, Jelena Platisa, Lawrence B Cohen, Bradley J Baker, Vincent A Pieribone   +5 more
doaj   +1 more source

An integrative taxonomic framework for the study of the genus Ciona (Ascidiacea) and description of a new species, Ciona intermedia [PDF]

, 2020
The genus Ciona is an interesting ‘taxonomic case’ because its evolutionary history and taxonomy have not yet been resolved completely. In this study, we present new findings, describing specimens of an unidentified Ciona species collected along the ...
Chimienti, Giovanni, Mastrototaro, Francesco, Gissi, Carmela, Viard, Frédérique, Trainito, Egidio, Montesanto, Federica, Salonna, Marika   +6 more
core   +1 more source

Characterization of a novel species-specific 51-amino acid peptide, PEP51, as a caspase-3/7 activator in ovarian follicles of the ascidian, Ciona intestinalis Type A

Frontiers in Endocrinology, 2023
Invertebrates lack hypothalamic-pituitary-gonadal axis, and have acquired species-specific regulatory systems for ovarian follicle development. Ascidians are marine invertebrates that are the phylogenetically closest living relatives to vertebrates, and ...
Tsubasa Sakai, Tatsuya Yamamoto, Takehiro Watanabe, Akiko Hozumi, Akira Shiraishi, Tomohiro Osugi, Shin Matsubara, Tsuyoshi Kawada, Yasunori Sasakura, Toshio Takahashi, Honoo Satake   +10 more
doaj   +1 more source

Characterization of calcium transients during early embryogenesis in ascidians Ciona robusta (Ciona intestinalis type A) and Ciona savignyi

Developmental Biology, 2017
The calcium ion (Ca2+) is an important second messenger, and a rapid increase in Ca2+ level (Ca2+ transient) is involved in various aspects of embryogenesis. Although Ca2+ transients play an important role in early developmental stages, little is known about their dynamics throughout embryogenesis.
Taichi, Akahoshi, Kohji, Hotta, Kotaro, Oka   +2 more
openaire   +2 more sources

Developmental system drift in motor ganglion patterning between distantly related tunicates

EvoDevo, 2018
Background The larval nervous system of the solitary tunicate Ciona is a simple model for the study of chordate neurodevelopment. The development and connectivity of the Ciona motor ganglion have been studied in fine detail, but how this important ...
Elijah K. Lowe, Alberto Stolfi
doaj   +1 more source

The repertoire of G protein-coupled receptors in the sea squirt Ciona intestinalis

BMC Evolutionary Biology, 2008
Background G protein-coupled receptors (GPCRs) constitute a large family of integral transmembrane receptor proteins that play a central role in signal transduction in eukaryotes. The genome of the protochordate Ciona intestinalis has a compact size with
Manoj Narayanan, Aradhyam Gopala K, Kamesh N   +2 more
doaj   +1 more source

The Cis-Regulatory Code for Kelch-like 21/30 Specific Expression in Ciona robusta Sensory Organs

Frontiers in Cell and Developmental Biology, 2020
The tunicate Ciona robusta is an emerging model system to study the evolution of the nervous system. Due to their small embryos and compact genomes, tunicates, like Ciona robusta, have great potential to comprehend genetic circuitry underlying cell ...
Ugo Coppola, Ugo Coppola, Ashwani Kumar Kamal, Alberto Stolfi, Filomena Ristoratore   +4 more
doaj   +1 more source

Ciona savignyi

, 2020
Range shifts of Ciona ...
Zhixin Zhang (7475357)
core   +1 more source

Xbp1 and Brachyury establish an evolutionarily conserved subcircuit of the notochord gene regulatory network

eLife, 2022
Gene regulatory networks coordinate the formation of organs and structures that compose the evolving body plans of different organisms. We are using a simple chordate model, the Ciona embryo, to investigate the essential gene regulatory network that ...
Yushi Wu, Arun Devotta, Diana S José-Edwards, Jamie E Kugler, Lenny J Negrón-Piñeiro, Karina Braslavskaya, Jermyn Addy, Jean-Pierre Saint-Jeannet, Anna Di Gregorio   +8 more
doaj   +1 more source