A growth hormone-based phylogenetic analysis of euteleostean fishes including a representative species of the Atheriniformes Order, Odontesthes argentinensis
Marins, L.F. (Universidade Federal Rio Grande. Departamento de Quimica)
Levy, J.A. (Universidade Federal Rio Grande. Departamento de Quimica)
Folch, Josep M. (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Sánchez Bonastre, Armando (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Date:	2003
Abstract:	The GH (growth hormone) cDNA sequence of the marine silverside fish Odontesthes argentinensis was obtained using the RACE protocol (Rapid Amplification of cDNA Ends). The marine silverside GH cDNA sequence is 928 nucleotides long and was found to encode a polypeptide of 204 amino acids, including a signal peptide of 17 amino acids. The 5' and 3' untranslated regions of the messenger are 109 and 204 nucleotides long, respectively. The deduced GH amino acid sequence was used to infer a phylogenetic tree with GH amino acid sequences from representative species belonging to the Euteleostei Subdivision using the maximum parsimony method. The topology found is according to the major phylogenetic grouping of euteleosts. The results corroborate the hypothesis that atherinids are not related to paracanthopterygians as previously suggested, and show a lack of solid synapomorphies among most of the Acanthopterygii Orders analysed indicating a complex assemblage of fishes in which the phylogenetic tree remains indeterminable.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Genetics and Molecular Biology, Vol. 26 Núm. 3 (september 2003) , p. 295-300, ISSN 1415-4757

DOI: 10.1590/S1415-47572003000300013

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