Results 11 to 20 of about 1,321 (169)
A major allogenic leukocyte antigen in the agnathan hagfish [PDF]
All vertebrates, from jawless fish to mammals, possess adaptive immune systems that can detect and inactivate non-self-antigens through a vast repertoire of antigen receptors. Unlike jawed vertebrates, the hagfish utilizes variable lymphocyte receptors (VLRs) that are unrelated to immunoglobulin molecules but are diversified by copy-choice gene ...
Hiroyuki Takaba +7 more
openaire +2 more sources
The evolution and variety of RFamide-type neuropeptides: insights from deuterostomian invertebrates [PDF]
Five families of neuropeptides that have a C-terminal RFamide motif have been identified in vertebrates: (1) gonadotropin-inhibitory hormone (GnIH), (2) neuropeptide FF (NPFF), (3) pyroglutamylated RFamide peptide (QRFP), (4) prolactin-releasing peptide (
Elphick, MR, Mirabeau, O
core +1 more source
Cambrian Chordates and Vetulicolians
Deuterostomes make a sudden appearance in the fossil record during the early Cambrian. Two bilaterian groups, the chordates and the vetulicolians, are of particular interest for understanding early deuterostome evolution, and the main objective of this ...
Mark A. S. McMenamin
doaj +1 more source
Maximum local helminth parasite community richness in British freshwater fish : a test of the colonization time hypothesis [PDF]
The investigation of Price & Clancy (1983), which demonstrated a significant positive correlation between total helminth species number per host species and geographical range of freshwater fish host species in Britain, was re-examined using a different ...
Guégan, Jean-François, Kennedy, C.R.
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Spatiotemporal pattern of doublecortin expression in the retina of the sea lamprey
Despite the importance of doublecortin (DCX) for the development of the nervous system, its expression in the retina of most vertebrates is still unknown.
Blanca eFernández-López +5 more
doaj +1 more source
Hippocampal pallium and map-like memories through vertebrate evolution [PDF]
The hippocampus in humans and other mammals is essential for episodic and relational memories. Comparative evidence indicates that a hippocampal pallium homologue is present in birds, reptiles, amphibians, ray-finned fishes, cartilaginous fishes and ...
Broglio Schenon, Cristina +6 more
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Lampreys, together with hagfishes, represent the sister group of gnathostome vertebrates. There is an increasing interest for comparing the forebrain organization observed in lampreys and gnathostomes to shed light on vertebrate brain evolution.
Manuel A Pombal +4 more
doaj +1 more source
Evolution of antigen binding receptors [PDF]
This review addresses issues related to the evolution of the complex multigene families of antigen binding receptors that function in adaptive immunity.
Anderson, Michele K. +2 more
core +1 more source
An inhibitory receptor of VLRB in the agnathan lamprey [PDF]
AbstractLamprey, the primitive jawless vertebrate, uses variable lymphocyte receptor (VLR) as alternative adaptive immune system instead of immunoglobulin (Ig)-based receptors used in jawed vertebrates. In the present study, we characterized a potential inhibitory receptor of VLRB from leucocytes in lamprey.
Fenfang Wu +7 more
openaire +2 more sources
Lampreys have a single gene cluster for the fast skeletal myosin heavy chain gene family. [PDF]
Muscle tissues contain the most classic sarcomeric myosin, called myosin II, which consists of 2 heavy chains (MYHs) and 4 light chains. In the case of humans (tetrapod), a total of 6 fast skeletal-type MYH genes (MYHs) are clustered on a single ...
Daisuke Ikeda +4 more
doaj +1 more source

