ArticleProceedings of the National Academy of Sciences of the United States of America1999
Molecular studies suggest that cartilaginous fishes have a terminal position in the piscine tree.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
- The White-Spotted Bamboo Shark Genome Reveals Chromosome Rearrangements and Fast-Evolving Immune Genes of Cartilaginous Fish.iScience · 2020Article
- Dissecting the Interaction Deficiency of a Cartilaginous Fish Digestive Lipase with Pancreatic Colipase: Biochemical and Structural Insights.BioMed research international · 2020Article
- Irf3 from mandarin fish thymus initiates interferon transcription.Fish physiology and biochemistry · 2019Article
- Article
- Sequencing and characterization of the complete mitochondrial genome of Japanese Swellshark (Cephalloscyllium umbratile).Scientific reports · 2017Article
- Hypothesis and Theory: Revisiting Views on the Co-evolution of the Melanocortin Receptors and the Accessory Proteins, MRAP1 and MRAP2.Frontiers in endocrinology · 2016Article
- Structure and vascularization of the ventricular myocardium in Holocephali: their evolutionary significance.Journal of anatomy · 2015Article
- Article
- Evolutionary relations of Hexanchiformes deep-sea sharks elucidated by whole mitochondrial genome sequences.BioMed research international · 2013Article
- Basal jawed vertebrate phylogenomics using transcriptomic data from Solexa sequencing.PloS one · 2012Article
- Community annotation and bioinformatics workforce development in concert--Little Skate Genome Annotation Workshops and Jamborees.Database : the journal of biological databases and curation · 2012Article
- Article
- Terminal deoxynucleotidyl transferases from elasmobranchs reveal structural conservation within vertebrates.Immunogenetics · 2003Article
- Molecular synapomorphies resolve evolutionary relationships of extant jawed vertebrates.Proceedings of the National Academy of Sciences of the United States of America · 2001Article
- Primitive synteny of vertebrate major histocompatibility complex class I and class II genes.Proceedings of the National Academy of Sciences of the United States of America · 2000Article
- Late changes in spliceosomal introns define clades in vertebrate evolution.Proceedings of the National Academy of Sciences of the United States of America · 1999Article
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2 authors.
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Abstract
The Chondrichthyes (cartilaginous fishes) are commonly accepted as being sister group to the other extant Gnathostomata (jawed vertebrates). To clarify gnathostome relationships and to aid in resolving and dating the major piscine divergences, we have sequenced the complete mtDNA of the starry skate and have included it in phylogenetic analysis along with three squalomorph chondrichthyans-the common dogfish, the spiny dogfish, and the star spotted dogfish-and a number of bony fishes and amniotes. The direction of evolution within the gnathostome tree was established by rooting it with the most closely related non-gnathostome outgroup, the sea lamprey, as well as with some more distantly related taxa. The analyses placed the chondrichthyans in a terminal position in the piscine tree. These findings, which also suggest that the origin of the amniote lineage is older than the age of the oldest extant bony fishes (the lungfishes), challenge the evolutionary direction of several morphological characters that have been used in reconstructing gnathostome relationships. Applying as a calibration point the age of the oldest lungfish fossils, 400 million years, the molecular estimate placed the squalomorph/batomorph divergence at approximately 190 million years before present. This dating is consistent with the occurrence of the earliest batomorph (skates and rays) fossils in the paleontological record. The split between gnathostome fishes and the amniote lineage was dated at approximately 420 million years before present.
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