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Population genetic analyses of Acipenser ruthenus as a prerequisite for the conservation of the uppermost Danube population

Identifieur interne : 000740 ( Istex/Corpus ); précédent : 000739; suivant : 000741

Population genetic analyses of Acipenser ruthenus as a prerequisite for the conservation of the uppermost Danube population

Auteurs : R. Reinartz ; S. Lippold ; D. Lieckfeldt ; A. Ludwig

Source :

RBID : ISTEX:28B97040479C4DADF4AD6B7A12AE9EA065052106

Abstract

Genotype structure of Acipenser ruthenus was investigated using microsatellites and mtDNA sequence analyses of 247 specimens of 13 locations from the rivers Danube, Volga and Kuban. These studies were done as an essential prerequisite for the conservation of the uppermost relict sterlet population which is located in the Danube River near the border between Germany and Austria. In contrast to the Volga population, which shows weak signs of a separation in at least three sub‐populations, both microsatellite profiles and mitochondrial sequences indicate a panmictic population of Danube sterlets. Importantly, introgression of non‐native Volga sterlets and a few hybrids with Acipenser baerii were discovered. We observed approximately 23% of non‐native sterlets with complete or at least partly Volga background within the Danube sterlets. Nevertheless, approximately 77% of Danube sterlets were pure native fish. We would like to suggest using these natives for supportive breeding and stocking to avoid any possible outbreeding depressions.

Url:
DOI: 10.1111/j.1439-0426.2011.01693.x

Links to Exploration step

ISTEX:28B97040479C4DADF4AD6B7A12AE9EA065052106

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<edition>Received: May 29, 2010 Accepted: January 6, 2011</edition>
<copyrightDate encoding="w3cdtf">2011</copyrightDate>
</originInfo>
<language>
<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<extent unit="figures">6</extent>
<extent unit="tables">4</extent>
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<abstract lang="en">Genotype structure of Acipenser ruthenus was investigated using microsatellites and mtDNA sequence analyses of 247 specimens of 13 locations from the rivers Danube, Volga and Kuban. These studies were done as an essential prerequisite for the conservation of the uppermost relict sterlet population which is located in the Danube River near the border between Germany and Austria. In contrast to the Volga population, which shows weak signs of a separation in at least three sub‐populations, both microsatellite profiles and mitochondrial sequences indicate a panmictic population of Danube sterlets. Importantly, introgression of non‐native Volga sterlets and a few hybrids with Acipenser baerii were discovered. We observed approximately 23% of non‐native sterlets with complete or at least partly Volga background within the Danube sterlets. Nevertheless, approximately 77% of Danube sterlets were pure native fish. We would like to suggest using these natives for supportive breeding and stocking to avoid any possible outbreeding depressions.</abstract>
<relatedItem type="host">
<titleInfo>
<title>Journal of Applied Ichthyology</title>
</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">0175-8659</identifier>
<identifier type="eISSN">1439-0426</identifier>
<identifier type="DOI">10.1111/(ISSN)1439-0426</identifier>
<identifier type="PublisherID">JAI</identifier>
<part>
<date>2011</date>
<detail type="title">
<title>Proceedings of the 6th International Symposium on Sturgeon Wuhan, China October 25‐31, 2009</title>
</detail>
<detail type="volume">
<caption>vol.</caption>
<number>27</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>2</number>
</detail>
<extent unit="pages">
<start>477</start>
<end>483</end>
<total>7</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">28B97040479C4DADF4AD6B7A12AE9EA065052106</identifier>
<identifier type="DOI">10.1111/j.1439-0426.2011.01693.x</identifier>
<identifier type="ArticleID">JAI1693</identifier>
<accessCondition type="use and reproduction" contentType="copyright">© 2011 Blackwell Verlag, Berlin</accessCondition>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Blackwell Publishing Ltd</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
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