Results 11 to 20 of about 4,709 (218)
Comparative genomics of chondrichthyan Hoxa clusters [PDF]
BMC Evolutionary Biology, 2009 Background The chondrichthyan or cartilaginous fish (chimeras, sharks, skates and rays) occupy an important phylogenetic position as the sister group to all other jawed vertebrates and as an early lineage to diverge from the vertebrate lineage following ...
Zhong Ying-Fu +2 more
doaj +6 more sources
<i>PhyloRef</i>: A Semi-Automated Workflow for eDNA Reference Database Curation via Phylogenetic Anomaly Detection. [PDF]
Ecol EvolPhyloRef processes complete mitochondrial genomes with optional multi‐gene concatenation to flag three categories of phylogenetic anomalies based on tree topology and annotates ambiguous sequences with “similar_to=” labels. The workflow successfully curated 7600+ chondrichthyan and actinopterygian sequences from NCBI, identifying and removing 410 ...
Mai Y, Li C.
europepmc +2 more sources
Molecular Characterization of the Gastrula in the Turtle Emys orbicularis: An Evolutionary Perspective on Gastrulation [PDF]
, 2008 Due to the presence of a blastopore as in amphibians, the turtle has been suggested to exemplify a transition form from an amphibian- to an avian-type gastrulation pattern.
A Perea-Gomez +53 more
core +28 more sources
Frontiers in Marine Science, 2023 The microbiome is a crucial influencer in animal development, immune function and health, and it has complex and dynamic interactions with the environment, but little is known about the microbial signatures of inner body fluids.
Marta Muñoz-Baquero +10 more
doaj +1 more source
A new Meckel’s cartilage from the Devonian Hangenberg black shale in Morocco and its position in chondrichthyan jaw morphospace [PDF]
PeerJ, 2022 Fossil chondrichthyan remains are mostly known from their teeth, scales or fin spines only, whereas their cartilaginous endoskeletons require exceptional preservational conditions to become fossilized.
Merle Greif +2 more
doaj +2 more sources
Veterinary Sciences, 2022 The therapy database currently used in elasmobranchs is still mostly based on empirical data, and there are few efficacy and safety studies supporting clinical practice.
Pablo Morón-Elorza +6 more
doaj +1 more source
The Late Cretaceous chondrichthyan fauna of the Elbtal Group (Saxony, Germany) [PDF]
Research & Knowledge, 2017 Upper Cretaceous (upper Cenomanian–lower Coniacian) marine strata of Saxony, eastern Germany, are mainly known for their rich invertebrate fauna, but have also yielded various vertebrate remains. The Saxonian Cretaceous marine strata, predominantly sand-
Jan Fischer +4 more
doaj +1 more source
Frontiers in Veterinary Science, 2022 Infectious and inflammatory diseases are the most frequently diagnosed pathologies in elasmobranchs maintained under human care. Non-steroidal anti-inflammatory drugs (NSAIDs) are frequently used in veterinary medicine for their anti-inflammatory ...
Pablo Morón-Elorza +7 more
doaj +1 more source
Bacterial community dynamics during embryonic development of the little skate (Leucoraja erinacea)
Animal Microbiome, 2021 Background Microbial transmission from parent to offspring is hypothesized to be widespread in vertebrates. However, evidence for this is limited as many evolutionarily important clades remain unexamined.
Katelyn Mika +3 more
doaj +1 more source
Electroreception in marine fishes: chondrichthyans [PDF]
Journal of Fish Biology, 2019 AbstractElectroreception in marine fishes occurs across a variety of taxa and is best understood in the chondrichthyans (sharks, skates, rays, and chimaeras). Here, we present an up‐to‐date review of what is known about the biology of passive electroreception and we consider how electroreceptive fishes might respond to electric and magnetic stimuli in ...
Kyle C. Newton +2 more
openaire +2 more sources