Tracing the first steps of American sturgeon pioneers in Europe

8503 8 35774 2 79588 document 35774 art%3A10.1186%2F1471-2148-8-221.pdf application/pdf 01c8008892aa8cc33393d82b78fc3f6c MD5 1164762 2016-03-01 13:22:26 https://pure.iiasa.ac.at/id/eprint/8503/1/art%253A10.1186%252F1471-2148-8-221.pdf 8503 1 1 application/pdf text en public cc_by

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published 35814 2 79653 document 35814 lightbox.jpg image/png 984f347db428196e6e39c90f19280b98 MD5 51011 2016-03-01 13:32:46 https://pure.iiasa.ac.at/id/eprint/8503/2/lightbox.jpg 8503 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/35774 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/35774 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/35774 archive 351 disk0/00/00/85/03 2016-01-15 08:40:51 2021-08-27 17:38:27 2016-01-15 08:40:51 article show Ludwig A. Arndt U. Lippold S. Benecke N. Debus L. King T.L. Matsumura S. 1841 Tracing the first steps of American sturgeon pioneers in Europe pub iis_ecl prog_eep Background: A Baltic population of Atlantic sturgeon was founded ~1,200 years ago by migrants from North America, but after centuries of persistence, the population was extirpated in the 1960s, mainly as a result of over-harvest and habitat alterations. As there are four genetically distinct groups of Atlantic sturgeon inhabiting North American rivers today, we investigated the genetic provenance of the historic Baltic population by ancient DNA analyses using mitochondrial and nuclear markers. Results: The phylogeographic signal obtained from multilocus microsatellite DNA genotypes and mitochondrial DNA control region haplotypes, when compared to existing baseline datasets from extant populations, allowed for the identification of the region-of-origin of the North American Atlantic sturgeon founders. Moreover, statistical and simulation analyses of the multilocus genotypes allowed for the calculation of the effective number of individuals that originally founded the European population of Atlantic sturgeon. Our findings suggest that the Baltic population of A. oxyrinchus descended from a relatively small number of founders originating from the northern extent of the species' range in North America. Conclusion: These results demonstrate that the most northerly distributed North American A. oxyrinchus colonized the Baltic Sea ~1,200 years ago, suggesting that Canadian specimens should be the primary source of broodstock used for restoration in Baltic rivers. This study illustrates the great potential of patterns obtained from ancient DNA to identify population-of-origin to investigate historic genotype structure of extinct populations. 2008-07 published BioMed Central 10.1186/1471-2148-8-221 XJ-08-133 BMC Evolutionary Biology; 8(1):221 (29 July 2008) [doi:10.1186/1471-2148-8-221] 1439 public BMC Evolutionary Biology 8 1 no.221 221 TRUE 1471-2148 FALSE info:eu-repo/semantics/article