caa a22 4500 606226656 CHVBK 20210128101154.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10641-014-0237-8 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0237-8 Gene flow across the N-Atlantic and sex-biased dispersal inferred from mtDNA sequence variation in saithe, Pollachius virens [Elektronische Daten] [Guðni Eiríksson, Einar Árnason] Genetic variation in saithe Pollachius virens was examined using a 460 base pair fragment of the cytochrome c oxidase subunit I mitochondrial gene in 1163 individuals sampled in Canada, Iceland, Faroe Islands and Norway. In all, 43 segregating sites were observed, almost all synonymous, defining 51 haplotypes. High frequency polymorphism was present at the analyzed fragment making it suitable for population genetic studies. The results showed limited trans Atlantic genetic structure indicating high levels of gene flow. However, a spatial genetic structure was observed when considering the sexes separately. This may suggest sex-biased migration pattern. The data indicate that females may be more philopatric and males more migratory. Such behaviour has rarely been described for marine fish and is worth further research. The observed genetic variation also indicates that saithe has undergone sudden population expansion, reflected in high number of singletons and a shallow genealogy. Springer Science+Business Media Dordrecht, 2014 mtDNA nationallicence COI nationallicence Gene flow nationallicence Sex-biased dispersal nationallicence Demography nationallicence Eiríksson Guðni Institute of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 101, Reykjavík, Iceland aut Árnason Einar Institute of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 101, Reykjavík, Iceland aut Environmental Biology of Fishes Springer Netherlands 98/1(2015-01-01), 67-79 0378-1909 98:1<67 2015 98 10641 https://doi.org/10.1007/s10641-014-0237-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0237-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eiríksson Guðni Institute of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 101, Reykjavík, Iceland aut NATIONALLICENCE 700 1- Árnason Einar Institute of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 101, Reykjavík, Iceland aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/1(2015-01-01), 67-79 0378-1909 98:1<67 2015 98 10641