Molecular phylogeny of Acipenserinae and black caviar species identification.
Identifieur interne : 001751 ( Main/Merge ); précédent : 001750; suivant : 001752Molecular phylogeny of Acipenserinae and black caviar species identification.
Auteurs : V. J. Birstein [États-Unis] ; P. Doukakis [États-Unis] ; R. Desalle [États-Unis]Source :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 1999-09.
Abstract
The first phylogenetic tree for the Acipenserinae based on the combined sequence data for fragments of three mitochondrial genes, the cytochrome b (650 bp) gene, 12S (150 bp) and 16S (350 bp) rRNA genes is described. Three general conclusions are inferred from the tree: 1) Scaphirhynchus albus is the sister‐species of all Acipenser and Huso species; 2) The two species of Huso are embedded within the genus Acipenser. Therefore, the genus Huso is not a separate taxonomic unit; and 3) There are three main clades within Acipenser: (a) A. sturio‐A. oxyrinchus, (b) A. schrenckii‐A. transmontanus, and (c) all Ponto‐Caspian species plus A. dabryanus and A. brevirostrum. A method based on the identification of diagnostic nucleotide positions in the cytochrome b gene was developed and used to survey the United States and European caviar markets. The survey of 95 lots of caviar obtained at the American market suggests that in December 1995 and April 1996 17% of the designations made by caviar suppliers were mislabeled with respect to species identification. In December of 1996, this figure jumped to 32%. The main commercially harvested species (Huso huso, A. stellatus, A. gueldenstaedtii, A. schrenckii, and H. dauricus), as well as A. nudiventris, A. persicus, and A. baerii are threatened due to the increased demand of the international caviar market.
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DOI: 10.1111/j.1439-0426.1999.tb00197.x
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J." last="Birstein">V. J. Birstein</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Molecular Laboratories, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Doukakis, P" sort="Doukakis, P" uniqKey="Doukakis P" first="P." last="Doukakis">P. Doukakis</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Molecular Laboratories, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Desalle, R" sort="Desalle, R" uniqKey="Desalle R" first="R." last="Desalle">R. Desalle</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Molecular Laboratories, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Applied Ichthyology</title><idno type="ISSN">0175-8659</idno><idno type="eISSN">1439-0426</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1999-09">1999-09</date><biblScope unit="volume">15</biblScope><biblScope unit="issue">4‐5</biblScope><biblScope unit="page" from="12">12</biblScope><biblScope unit="page" to="16">16</biblScope></imprint><idno type="ISSN">0175-8659</idno></series><idno type="istex">E0DC59B5434919443618E77700180EE06E2196D3</idno><idno type="DOI">10.1111/j.1439-0426.1999.tb00197.x</idno><idno type="ArticleID">JAI12</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0175-8659</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The first phylogenetic tree for the Acipenserinae based on the combined sequence data for fragments of three mitochondrial genes, the cytochrome b (650 bp) gene, 12S (150 bp) and 16S (350 bp) rRNA genes is described. Three general conclusions are inferred from the tree: 1) Scaphirhynchus albus is the sister‐species of all Acipenser and Huso species; 2) The two species of Huso are embedded within the genus Acipenser. Therefore, the genus Huso is not a separate taxonomic unit; and 3) There are three main clades within Acipenser: (a) A. sturio‐A. oxyrinchus, (b) A. schrenckii‐A. transmontanus, and (c) all Ponto‐Caspian species plus A. dabryanus and A. brevirostrum. A method based on the identification of diagnostic nucleotide positions in the cytochrome b gene was developed and used to survey the United States and European caviar markets. The survey of 95 lots of caviar obtained at the American market suggests that in December 1995 and April 1996 17% of the designations made by caviar suppliers were mislabeled with respect to species identification. In December of 1996, this figure jumped to 32%. The main commercially harvested species (Huso huso, A. stellatus, A. gueldenstaedtii, A. schrenckii, and H. dauricus), as well as A. nudiventris, A. persicus, and A. baerii are threatened due to the increased demand of the international caviar market.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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