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Mitogenomic analyses of deep gnathostome divergences: a fish is a fish

Arnason, Ulfur LU ; Gullberg, Anette LU ; Janke, Axel LU ; Joss, J and Elmerot, Christian LU (2004) In Gene 333. p.61-70
Abstract
It is commonly accepted that among recent fishes the lungfishes are the closest relatives of the tetrapods. According to this hypothesis, the tetrapods, lungfishes and coelacanths constitute a group of specialized fishes (Sarcopterygii) to the exclusion of other bony fishes. Here, we describe basal relationships among gnathostome (jawed) vertebrates as reconstructed by analysis of complete mitochondrial DNA sequences. The study includes all major extant groups of both tetrapods and fishes and uses agnathan (jawless) vertebrates as an outgroup to root the trees. The analyses split extant gnathostomes into two monophyletic groups: tetrapods and fishes (including cartilaginous fishes). Cladistia (bichirs, ropefish) is in a basal position on... (More)
It is commonly accepted that among recent fishes the lungfishes are the closest relatives of the tetrapods. According to this hypothesis, the tetrapods, lungfishes and coelacanths constitute a group of specialized fishes (Sarcopterygii) to the exclusion of other bony fishes. Here, we describe basal relationships among gnathostome (jawed) vertebrates as reconstructed by analysis of complete mitochondrial DNA sequences. The study includes all major extant groups of both tetrapods and fishes and uses agnathan (jawless) vertebrates as an outgroup to root the trees. The analyses split extant gnathostomes into two monophyletic groups: tetrapods and fishes (including cartilaginous fishes). Cladistia (bichirs, ropefish) is in a basal position on the piscine branch. Thus, contrary to the traditional view, the mitogenomic results suggest that among living gnathostomes a tetrapod is a tetrapod and a fish, a fish. Similarly, analyses of 18S and 28S rRNA genes (both nuclear) do not support the commonly accepted tree. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
phylogenetic relationships, gnathostomes, fishes, tetrapods
in
Gene
volume
333
pages
61 - 70
publisher
Elsevier
external identifiers
  • wos:000222074800008
  • pmid:15177681
  • scopus:2942529011
ISSN
1879-0038
DOI
10.1016/j.gene.2004.02.014
language
English
LU publication?
yes
id
41a32785-1516-45fd-bbc4-bc5784db879a (old id 275318)
date added to LUP
2007-10-16 13:54:31
date last changed
2017-12-10 04:39:23
@article{41a32785-1516-45fd-bbc4-bc5784db879a,
  abstract     = {It is commonly accepted that among recent fishes the lungfishes are the closest relatives of the tetrapods. According to this hypothesis, the tetrapods, lungfishes and coelacanths constitute a group of specialized fishes (Sarcopterygii) to the exclusion of other bony fishes. Here, we describe basal relationships among gnathostome (jawed) vertebrates as reconstructed by analysis of complete mitochondrial DNA sequences. The study includes all major extant groups of both tetrapods and fishes and uses agnathan (jawless) vertebrates as an outgroup to root the trees. The analyses split extant gnathostomes into two monophyletic groups: tetrapods and fishes (including cartilaginous fishes). Cladistia (bichirs, ropefish) is in a basal position on the piscine branch. Thus, contrary to the traditional view, the mitogenomic results suggest that among living gnathostomes a tetrapod is a tetrapod and a fish, a fish. Similarly, analyses of 18S and 28S rRNA genes (both nuclear) do not support the commonly accepted tree.},
  author       = {Arnason, Ulfur and Gullberg, Anette and Janke, Axel and Joss, J and Elmerot, Christian},
  issn         = {1879-0038},
  keyword      = {phylogenetic relationships,gnathostomes,fishes,tetrapods},
  language     = {eng},
  pages        = {61--70},
  publisher    = {Elsevier},
  series       = {Gene},
  title        = {Mitogenomic analyses of deep gnathostome divergences: a fish is a fish},
  url          = {http://dx.doi.org/10.1016/j.gene.2004.02.014},
  volume       = {333},
  year         = {2004},
}