Complete mitochondrial DNA genome of bonnethead shark, Sphyrna tiburo, and phylogenetic relationships among main superorders of modern elasmobranchs
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چکیده
منابع مشابه
Complete mitochondrial DNA genome of bonnethead shark, Sphyrna tiburo, and phylogenetic relationships among main superorders of modern elasmobranchs
Elasmobranchs are one of the most diverse groups in the marine realm represented by 18 orders, 55 families and about 1200 species reported, but also one of the most vulnerable to exploitation and to climate change. Phylogenetic relationships among main orders have been controversial since the emergence of the Hypnosqualean hypothesis by Shirai (1992) that considered batoids as a sister group of...
متن کاملBite force and performance in the durophagous bonnethead shark, Sphyrna tiburo.
Bite force, a measure of performance, can be used to link anatomical form and function. Earlier studies have shown bite force to have a significant influence on dietary constraints and ontogenetic shifts in resource utilization. The bonnethead shark, Sphyrna tiburo, is a durophagous member of the family Sphyrnidae. Its diet in South Florida waters consists almost entirely of blue crabs, which a...
متن کاملThe sexually dimorphic cephalofoil of bonnethead sharks, Sphyrna tiburo.
Sexually dimorphic head shape is common in vertebrates from teleosts to mammals. Herein we document that cephalic sexual dimorphism is also found in the cartilaginous fishes (Chondrichthyes). Male bonnethead sharks develop a prominent bulge along the anterior margin of the cephalofoil at the onset of sexual maturity. This contrasts with the uniformly rounded anterior margin of adult females and...
متن کاملPhylogenetic Relationships among the Major Lineages of Modern Elasmobranchs
Modern elasmobranchs (sharks skates and rays) are the extant survivors of one of the earliest offshoots of the vertebrate evolutionary tree. Their basal placement on the tree has drawn attention from researchers interested in understanding features characterizing the ancestral vertebrate condition. While their basal placement has long been appreciated, most studies have adopted the stance that ...
متن کاملEpigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
Representatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for an adaptive immune system, the immune regulatory compounds they possess may represent the earliest evolutionary forms of novel compounds with th...
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ژورنال
عنوان ژورنال: Meta Gene
سال: 2016
ISSN: 2214-5400
DOI: 10.1016/j.mgene.2015.11.005