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Titolo:
Phylogenetic relationships of the North American sturgeons (order Acipenseriformes) based on mitochondrial DNA sequences
Autore:
Krieger, J; Fuerst, PA; Cavender, TM;
Indirizzi:
Ohio State Univ, Dept Mol Genet, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 t Mol Genet, Columbus, OH 43210 USA Ohio State Univ, Dept Ecol Evolut & Organismal Biol, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 nismal Biol, Columbus, OH 43210 USA
Titolo Testata:
MOLECULAR PHYLOGENETICS AND EVOLUTION
fascicolo: 1, volume: 16, anno: 2000,
pagine: 64 - 72
SICI:
1055-7903(200007)16:1<64:PROTNA>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPLETE NUCLEOTIDE-SEQUENCE; RIBOSOMAL-RNA; CONSERVATION; INTERRELATIONSHIPS; BIOGEOGRAPHY; FISHES; GENOME;
Keywords:
Acipenseriformes; evolution; mitochondrial DNA; molecular phylogenetics; paddlefish; sturgeon;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Krieger, J Ohio State Univ, Dept Mol Genet, 484 W 12Th Ave, Columbus, OH 43210 USA Ohio State Univ 484 W 12Th Ave Columbus OH USA 43210 43210 USA
Citazione:
J. Krieger et al., "Phylogenetic relationships of the North American sturgeons (order Acipenseriformes) based on mitochondrial DNA sequences", MOL PHYL EV, 16(1), 2000, pp. 64-72

Abstract

The evolutionary relationships of the extant species within the order Acipenseriformes are not well understood. Nucleotide sequences of four mitochondrial genes (12S rRNA, COII, tRNA(Phe), and tRNA(ASP) genes) in North American sturgeon and paddlefish were examined to reconstruct a phylogeny. Analysis of the combined gene sequences suggests a basal placement of the paddlefish with regard to the sturgeons. Nucleotide sequences of all four genes for the three Scaphi-rhynchus species were identical. The position of Scaphirhynchus based on our data was uncertain. Within the genus Acipenser, the two Acipenser oxyrinchus subspecies were very similar in sequence and found to be basal to the remaining Acipenser species examined. Based on our data,Acipenser transmontanus and Acipenser medirostris were sister tare, as were Acipenser fulvescens and Acipenser brevirostrum. Comparison of our results with hypotheses of sturgeon relationships proposed by previous authors ispresented. The sequence data presented here are phylogenetically useful and provide a solid foundation of genetic information for the North American Acipenseriformes that can be expanded to include Eurasian species to provide a global picture of sturgeon evolution. (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 20:13:48