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Embryonic origin and serial homology of gill arches and paired fins in the skate, Leucoraja erinacea.
Paired fins are a defining feature of the jawed vertebrate body plan, but their evolutionary origin remains unresolved. Gegenbaur proposed that paired fins evolved as gill arch serial homologues, but this hypothesis is now...
Developmental evidence for serial homology of the vertebrate jaw and gill arch skeleton.
Gegenbaur's classical hypothesis of jaw-gill arch serial homology is widely cited, but remains unsupported by either palaeontological evidence (for example, a series of fossils reflecting the stepwise transformation of a gill...
Effects of Titanium Dioxide Nanoparticle Injections on Tissue Function and Morphology in Goldfish (Carassius auratus)
Bryan Joel Patterson
Jan 01, 0001
Fish gills are sensitive to a variety of environmental factors because they regulate the exchange of oxygen and ions between the fish and the external environment. This study examined the effects of polyacrylic acid (PAA) coated...
Goldfish Nanoparticles titanium dioxide TiO2 Polyacrylic Acid PAA Interlamellar Cell Mass ILCM Gills Animal Sciences Aquaculture and Fisheries Biology Life Sciences Pharmacology, Toxicology and Environmental Health Physiology toxicology
Published by: Winthrop University
Gill developmental program in the teleost mandibular arch.
Whereas no known living vertebrate possesses gills derived from the jaw-forming mandibular arch, it has been proposed that the jaw arose through modifications of an ancestral mandibular gill. Here, we show that the zebrafish...
Species- and tissue-specific differences in ROS metabolism during exposure to hypoxia and hyperoxia plus recovery in marine sculpins.
Animals that inhabit environments that fluctuate in oxygen must not only contend with disruptions to aerobic metabolism, but also the potential effects of reactive oxygen species (ROS). The goal of this study was to compare...
Automated identification of Monogeneans using digital image processing and K-nearest neighbour approaches.
BACKGROUND: Monogeneans are flatworms (Platyhelminthes) that are primarily found on gills and skin of fishes. Monogenean parasites have attachment appendages at their haptoral regions that help them to move about the body...
CD4-Transgenic Zebrafish Reveal Tissue-Resident Th2- and Regulatory T Cell-like Populations and Diverse Mononuclear Phagocytes.
Christopher T Dee, Raghavendar T Nagaraju, Emmanouil I Athanasiadis, Caroline Gray, Laura Fernandez Del Ama, Simon A Johnston, Christopher J Secombes, Ana Cvejic, Adam FL Hurlstone
Nov 03, 2016
Ectodermal Wnt signaling, cell fate determination, and polarity of the skate gill arch skeleton.
The gill skeleton of cartilaginous fishes (sharks, skates, rays, and holocephalans) exhibits a striking anterior-posterior polarity, with a series of fine appendages called branchial rays projecting from the posterior margin of...
Bichir external gills arise via heterochronic shift that accelerates hyoid arch development.
Jan Stundl, Anna Pospisilova, David Jandzik, Peter Fabian, Barbora Dobiasova, Martin Minarik, Brian D Metscher, Vladimir Soukup, Robert Cerny
May 01, 2019
In most vertebrates, pharyngeal arches form in a stereotypic anterior-to-posterior progression. To gain insight into the mechanisms underlying evolutionary changes in pharyngeal arch development, here we investigate embryos and...
Induction of innate cytokine responses by respiratory mucosal challenge with R848 in zebrafish, mice, and humans.
Fränze Progatzky, Akhilesh Jha, Madina Wane, Ryan S Thwaites, Spyridon Makris, Robin J Shattock, Cecilia Johansson, Peter J Openshaw, Laurence Bugeon, Trevor T Hansel, Margaret J Dallman
Aug 08, 2019