Molecular genetic analysis among subspecies of two Eurasian sturgeon species, Acipenser baerii and A. stellatus.
Identifieur interne : 000652 ( PubMed/Corpus ); précédent : 000651; suivant : 000653Molecular genetic analysis among subspecies of two Eurasian sturgeon species, Acipenser baerii and A. stellatus.
Auteurs : P. Doukakis ; V J Birstein ; G I Ruban ; R. DesalleSource :
- Molecular ecology [ 0962-1083 ] ; 1999.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : DNA Primers, DNA, Mitochondrial.
- geographic : Asia, Europe.
- classification : Fishes.
- genetics : Fishes.
- Animals, Base Sequence, Conservation of Natural Resources, Ecosystem, Genetics, Population, Haplotypes, Molecular Biology, Phylogeny, Species Specificity.
Abstract
Two species, the Siberian sturgeon, Acipenser baerii, and stellate sturgeon, A. stellatus, were studied using mitochondrial DNA (mtDNA) (D-loop, cytochrome b (cyt-b) and ND5/6 genes) sequencing to determine whether traditionally defined subspecies correspond to taxonomic entities and conservation management units. Initially, several mtDNA regions for each taxon (A. baerii: 737 bp D-loop, 750 bp ND5, 200 bp ND6, and 790 bp cyt-b; A. stellatus: 737 bp D-loop and 600 bp ND5) were examined. The D-loop was the most variable region and was sequenced for 35 A. baerii and 82 A. stellatus individuals. No fixed, diagnostic differences were found between any of the subspecies. Geographical structuring of haplotypes was observed within A. baerii, and gene flow estimates suggest isolation of the A. baerii baicalensis subspecies and the Yenisie and Lena River populations. No intraspecific subdivisioning was found within the genetic data for A. stellatus. The use of the phylogenetic criterion (fixed diagnostic differences) for identifying conservation units is compared to the rationale and results of other methods. Overall, morphologically and geographically based subspecies designations within Acipenseridae may not directly correspond to the biological entities appropriate for management and should not be used for conservation programmes without genetic support.
PubMed: 10703555
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pubmed:10703555Le document en format XML
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Desalle</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1999">1999</date><idno type="RBID">pubmed:10703555</idno><idno type="pmid">10703555</idno><idno type="wicri:Area/PubMed/Corpus">000652</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000652</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Molecular genetic analysis among subspecies of two Eurasian sturgeon species, Acipenser baerii and A. stellatus.</title><author><name sortKey="Doukakis, P" sort="Doukakis, P" uniqKey="Doukakis P" first="P" last="Doukakis">P. Doukakis</name><affiliation><nlm:affiliation>American Museum of Natural History, New York, NY 10024, USA. doukakis@amnh.org</nlm:affiliation></affiliation></author><author><name sortKey="Birstein, V J" sort="Birstein, V J" uniqKey="Birstein V" first="V J" last="Birstein">V J Birstein</name></author><author><name sortKey="Ruban, G I" sort="Ruban, G I" uniqKey="Ruban G" first="G I" last="Ruban">G I Ruban</name></author><author><name sortKey="Desalle, R" sort="Desalle, R" uniqKey="Desalle R" first="R" last="Desalle">R. Desalle</name></author></analytic><series><title level="j">Molecular ecology</title><idno type="ISSN">0962-1083</idno><imprint><date when="1999" type="published">1999</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Asia</term><term>Base Sequence</term><term>Conservation of Natural Resources</term><term>DNA Primers (genetics)</term><term>DNA, Mitochondrial (genetics)</term><term>Ecosystem</term><term>Europe</term><term>Fishes (classification)</term><term>Fishes (genetics)</term><term>Genetics, Population</term><term>Haplotypes</term><term>Molecular Biology</term><term>Phylogeny</term><term>Species Specificity</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA Primers</term><term>DNA, Mitochondrial</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Asia</term><term>Europe</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Base Sequence</term><term>Conservation of Natural Resources</term><term>Ecosystem</term><term>Genetics, Population</term><term>Haplotypes</term><term>Molecular Biology</term><term>Phylogeny</term><term>Species Specificity</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Two species, the Siberian sturgeon, Acipenser baerii, and stellate sturgeon, A. stellatus, were studied using mitochondrial DNA (mtDNA) (D-loop, cytochrome b (cyt-b) and ND5/6 genes) sequencing to determine whether traditionally defined subspecies correspond to taxonomic entities and conservation management units. Initially, several mtDNA regions for each taxon (A. baerii: 737 bp D-loop, 750 bp ND5, 200 bp ND6, and 790 bp cyt-b; A. stellatus: 737 bp D-loop and 600 bp ND5) were examined. The D-loop was the most variable region and was sequenced for 35 A. baerii and 82 A. stellatus individuals. No fixed, diagnostic differences were found between any of the subspecies. Geographical structuring of haplotypes was observed within A. baerii, and gene flow estimates suggest isolation of the A. baerii baicalensis subspecies and the Yenisie and Lena River populations. No intraspecific subdivisioning was found within the genetic data for A. stellatus. The use of the phylogenetic criterion (fixed diagnostic differences) for identifying conservation units is compared to the rationale and results of other methods. Overall, morphologically and geographically based subspecies designations within Acipenseridae may not directly correspond to the biological entities appropriate for management and should not be used for conservation programmes without genetic support.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">10703555</PMID><DateCreated><Year>2000</Year><Month>04</Month><Day>11</Day></DateCreated><DateCompleted><Year>2000</Year><Month>04</Month><Day>11</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0962-1083</ISSN><JournalIssue CitedMedium="Print"><Volume>8</Volume><Issue>12 Suppl 1</Issue><PubDate><Year>1999</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol. 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Geographical structuring of haplotypes was observed within A. baerii, and gene flow estimates suggest isolation of the A. baerii baicalensis subspecies and the Yenisie and Lena River populations. No intraspecific subdivisioning was found within the genetic data for A. stellatus. The use of the phylogenetic criterion (fixed diagnostic differences) for identifying conservation units is compared to the rationale and results of other methods. 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