Molecular phylogeny of Acipenserinae.
Identifieur interne : 000892 ( Ncbi/Curation ); précédent : 000891; suivant : 000893Molecular phylogeny of Acipenserinae.
Auteurs : V J Birstein [États-Unis] ; R. DesalleSource :
- Molecular phylogenetics and evolution [ 1055-7903 ] ; 1998.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : DNA, Mitochondrial.
- chemical , genetics : Cytochrome b Group, RNA, Ribosomal, RNA, Ribosomal, 16S.
- geographic : Asia, Europe, North America.
- genetics : Fishes.
- Animals, Evolution, Molecular, Geological Phenomena, Geology, Molecular Sequence Data, Paleontology, Phylogeny.
Abstract
The family Acipenseridae consists of 25 extant sturgeon species (19 species of Acipenserinae and 6 species of Scaphirhynchinae). Together with two extant paddlefish species, Polyodon spathula and Psephurus gladius (Polyodontidae), it composes the order Acipenseriformes, the most numerous of all living "fossil" fishes. This paper presents results of sequencing of three regions of the cytochrome b gene (650 bp), and fragments of 12S (150 bp) and 16S (350 bp) rRNA genes, from all extant species of Acipenserinae (species of Acipenser and Huso) and Scaphirhynchus albus (Scaphirhynchinae). The phylogenetic tree obtained for combined data is the first comprehensive treatment of phylogeny within the Acipenserinae. Three general conclusions are inferred from the tree: (1) The pallid sturgeon, S. albus, is the sister-species of all species of Acipenser and Huso. (2) The two species of Huso are embedded within the genus Acipenser. It also appears that Huso is not a separate taxonomic unit. (3) There are at least three main clades within Acipenser: A. sturio-A. oxyrinchus, A. schrenckii-A. transmontanus, and all Ponto-Caspian species plus A. dabryanus and A. brevirostrum. There is congruence between ploidy and the branching patterns of the sturgeon species. A hypothetical evolutionary history of the Acipenseriformes based on the paleontological, geological, and molecular data is discussed.
DOI: 10.1006/mpev.1997.0443
PubMed: 9479703
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Desalle</name></author></analytic><series><title level="j">Molecular phylogenetics and evolution</title><idno type="ISSN">1055-7903</idno><imprint><date when="1998" type="published">1998</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Asia</term><term>Cytochrome b Group (genetics)</term><term>DNA, Mitochondrial (analysis)</term><term>Europe</term><term>Evolution, Molecular</term><term>Fishes (genetics)</term><term>Geological Phenomena</term><term>Geology</term><term>Molecular Sequence Data</term><term>North America</term><term>Paleontology</term><term>Phylogeny</term><term>RNA, Ribosomal (genetics)</term><term>RNA, Ribosomal, 16S (genetics)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>DNA, Mitochondrial</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Cytochrome b Group</term><term>RNA, Ribosomal</term><term>RNA, Ribosomal, 16S</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Asia</term><term>Europe</term><term>North America</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Evolution, Molecular</term><term>Geological Phenomena</term><term>Geology</term><term>Molecular Sequence Data</term><term>Paleontology</term><term>Phylogeny</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The family Acipenseridae consists of 25 extant sturgeon species (19 species of Acipenserinae and 6 species of Scaphirhynchinae). Together with two extant paddlefish species, Polyodon spathula and Psephurus gladius (Polyodontidae), it composes the order Acipenseriformes, the most numerous of all living "fossil" fishes. This paper presents results of sequencing of three regions of the cytochrome b gene (650 bp), and fragments of 12S (150 bp) and 16S (350 bp) rRNA genes, from all extant species of Acipenserinae (species of Acipenser and Huso) and Scaphirhynchus albus (Scaphirhynchinae). The phylogenetic tree obtained for combined data is the first comprehensive treatment of phylogeny within the Acipenserinae. Three general conclusions are inferred from the tree: (1) The pallid sturgeon, S. albus, is the sister-species of all species of Acipenser and Huso. (2) The two species of Huso are embedded within the genus Acipenser. It also appears that Huso is not a separate taxonomic unit. (3) There are at least three main clades within Acipenser: A. sturio-A. oxyrinchus, A. schrenckii-A. transmontanus, and all Ponto-Caspian species plus A. dabryanus and A. brevirostrum. There is congruence between ploidy and the branching patterns of the sturgeon species. A hypothetical evolutionary history of the Acipenseriformes based on the paleontological, geological, and molecular data is discussed.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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