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Contrasting levels of genetic differentiation among putative neutral microsatellite loci in Atlantic herring Clupea harengus populations and the implications for assessing stock structure Watts, P.C.; O'Leary, D.; Cross, M.C.; Coughlan, J.; Dillane, E.; Kay, S.M.; Wylde, S.; Stet, R.; Nash, R.D.M.; Hatfield, E.M.C.; Cross, T.F. (2008). Contrasting levels of genetic differentiation among putative neutral microsatellite loci in Atlantic herring Clupea harengus populations and the implications for assessing stock structure, in: Davenport, J. et al. Challenges to Marine Ecosystems: Proceedings of the 41st European Marine Biology Symposium, held in Cork, Ireland, 4-8 September 2005. Developments in Hydrobiology, 202: pp. 27-33. https://dx.doi.org/10.1007/978-1-4020-8808-7_2 In: Davenport, J. et al. (2008). Challenges to marine ecosystems: Proceedings of the 41st European Marine Biology Symposium, held in Cork, Ireland, 4-8 September 2005. European Marine Biology Symposia, 41. Developments in Hydrobiology, 202. ISBN 978-1-4020-8807-0; e-ISBN 978-1-4020-8808-7. 211 pp. https://dx.doi.org/10.1007/978-1-4020-8808-7 In: European Marine Biology Symposia. Is gerelateerd aan: Watts, P.C.; O'Leary, D.; Cross, M.C.; Coughlan, J.; Dillane, E.; Kay, S.M.; Wylde, S.; Stet, R.; Nash, R.D.M.; Hatfield, E.M.C.; Cross, T.F. (2008). Contrasting levels of genetic differentiation among putative neutral microsatellite loci in Atlantic herring Clupea harengus populations and the implications for assessing stock structure. Hydrobiologia 606(1): 27-33. https://dx.doi.org/10.1007/s10750-008-9350-z, meer

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Beschikbaar in	Auteurs
VLIZ [ aanvragen ]
Documenttype: Congresbijdrage

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Trefwoorden

AN, North Atlantic ANE, Baltic Biology > Genetics > Population genetics Biomarkers Bioselection > Natural selection British Isles Chemical compounds > Organic compounds > Nucleotides Disciplines > Biology > Genetics > Heterozygosity Europe, West Genetic engineering Marine biology Markers > Genetic markers Population dynamics Selection Selection Stock assessment Clupea harengus Linnaeus, 1758 [WoRMS] Baltic Sea [Marine Regions]; British Isles [Marine Regions]; Europe [Marine Regions]; North Atlantic Ocean [Marine Regions] Marien/Kust

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Auteurs		Top
Watts, P.C. O'Leary, D. Cross, M.C. Coughlan, J.	Dillane, E. Kay, S.M. Wylde, S. Stet, R.	Nash, R.D.M. Hatfield, E.M.C. Cross, T.F.

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Abstract

Microsatellite DNA loci, when used in population genetic studies, are usually assumed to be neutral (unaffected by natural selection, either directly or as a result of tight linkage), but this assumption is rarely tested. Here, the assumption of neutrality is examined using established methods, principally that based on the expected relationship between F ST and heterozygosity, at 12 putative neutral microsatellite loci utilised in a study of Atlantic herring Clupea harengus in the north east Atlantic (west of Great Britain and around Ireland) and in the Baltic Sea. All but two of these loci demonstrate relationships that suggest that they may be regarded as neutral genetic markers. Of the other two loci, however, one shows a relationship suggestive of the action of directional selection and the other of balancing natural selection, though other locus-specific effects may operate. Thus, the latter two loci may provide inaccurate inference if used in phylogeographic studies and also demonstrate the danger of assuming neutrality at all microsatellite loci without explicit testing. However, such loci, particularly those affected by directional as opposed to balancing selection, may be of great use in stock discrimination studies, and selected loci in general, have considerably potential in studies of adaptation.

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