Results 1 to 10 of about 5,285 (121)

Asymmetric Fitness of Second-Generation Interspecific Hybrids Between Ciona robusta and Ciona intestinalis [PDF]

G3: Genes, Genomes, Genetics, 2020
Reproductive isolation is central to speciation, but interspecific crosses between two closely related species can produce viable and fertile hybrids.
Naoyuki Ohta, Nicole Kaplan, James Tyler Ng, Basile Jules Gravez, Lionel Christiaen   +4 more
doaj   +2 more sources

Comparative Microbiome and Metabolome Analyses of the Marine Tunicate Ciona intestinalis from Native and Invaded Habitats [PDF]

Microorganisms, 2020
Massive fouling by the invasive ascidian Ciona intestinalis in Prince Edward Island (PEI, Canada) has been causing devastating losses to the local blue mussel farms.
Caroline Utermann, Martina Blümel, Kathrin Busch, Larissa Buedenbender, Yaping Lin, Bradley A. Haltli, Russell G. Kerr, Elizabeta Briski, Ute Hentschel, Deniz Tasdemir   +9 more
doaj   +2 more sources

Comprehensive analysis of locomotion dynamics in the protochordate Ciona intestinalis reveals how neuromodulators flexibly shape its behavioral repertoire [PDF]

PLoS Biology, 2022
Vertebrate nervous systems can generate a remarkable diversity of behaviors. However, our understanding of how behaviors may have evolved in the chordate lineage is limited by the lack of neuroethological studies leveraging our closest invertebrate ...
Athira Athira, Daniel Dondorp, Jerneja Rudolf, Olivia Peytral, Marios Chatzigeorgiou   +4 more
doaj   +2 more sources

Single-Cell RNA Sequencing of the Testis of Ciona intestinalis Reveals the Dynamic Transcriptional Profile of Spermatogenesis in Protochordates [PDF]

Cells, 2022
Spermatogenesis is a complex and continuous process of germ-cell differentiation. This complex process is regulated by many factors, of which gene regulation in spermatogenic cells plays a decisive role.
Yanan Li, Xiang Liu, Xianghui Zhang, Hongyan Wang, Jianyang Chen, Jiankai Wei, Yubang Li, Hongxi Chen, Qian Wang, Kaiqiang Liu, Yuyan Liu, Changwei Shao   +11 more
doaj   +2 more sources

Characterization of a putative orexin receptor in Ciona intestinalis sheds light on the evolution of the orexin/hypocretin system in chordates [PDF]

Scientific Reports
Tunicates are evolutionary model organisms bridging the gap between vertebrates and invertebrates. A genomic sequence in Ciona intestinalis (CiOX) shows high similarity to vertebrate orexin receptors and protostome allatotropin receptors (ATR).
Maiju K. Rinne, Lauri Urvas, Ilona Mandrika, Dāvids Fridmanis, Darren M. Riddy, Christopher J. Langmead, Jyrki P. Kukkonen, Henri Xhaard   +7 more
doaj   +2 more sources

Vasopressin Promoter Transgenic and Vasopressin Gene-Edited Ascidian, Ciona intestinalis Type A (Ciona robusta): Innervation, Gene Expression Profiles, and Phenotypes [PDF]

Frontiers in Endocrinology, 2021
Oxytocin (OT) and vasopressin (VP) superfamily neuropeptides are distributed in not only vertebrates but also diverse invertebrates. However, no VPergic innervation of invertebrates has ever been documented.
Tsuyoshi Kawada, Akira Shiraishi, Shin Matsubara, Akiko Hozumi, Takeo Horie, Yasunori Sasakura, Honoo Satake   +6 more
doaj   +2 more sources

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 [PDF]

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   +2 more sources

Gene expression and cellular changes in injured myocardium of Ciona intestinalis [PDF]

Frontiers in Cell and Developmental Biology
Ciona intestinalis is an invertebrate animal model system that is well characterized and has many advantages for the study of cardiovascular biology. The regulatory mechanisms of cardiac myocyte proliferation in Ciona are intriguing since regeneration of
Serenity Stokes, Pooja Pardhanani Palmer, Jeremy L. Barth, Robert L. Price, Bella G. Parker, Heather J. Evans Anderson   +5 more
doaj   +2 more sources

Culture-Dependent Microbiome of the Ciona intestinalis Tunic: Isolation, Bioactivity Profiling and Untargeted Metabolomics [PDF]

Microorganisms, 2020
Ascidians and their associated microbiota are prolific producers of bioactive marine natural products. Recent culture-independent studies have revealed that the tunic of the solitary ascidian Cionaintestinalis (sea vase) is colonized by a diverse ...
Caroline Utermann, Vivien A. Echelmeyer, Martina Blümel, Deniz Tasdemir   +3 more
doaj   +2 more sources

Fractionation of Ovarian Follicles and in vitro Oocyte Maturation and Ovulation Assay of Ciona intestinalis Type A [PDF]

Bio-Protocol, 2020
Ascidians are the closest living relatives of vertebrates (Delsuc et al., 2006; Satoh et al., 2014) and are important for the evolutionary study of the ovarian follicle development including oocyte maturation and ovulation.
Shin Matsubara, Akira Shiraishi, Tomohiro Osugi, Tsuyoshi Kawada, Honoo Satake   +4 more
doaj   +2 more sources