Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod

Robert Fairweather*, Ian R. Bradbury, Sarah J. Helyar, Mark de Bruyn, Nina Overgaard Therkildsen, Paul Bentzen, Jakob Hemmer Hansen, Gary R. Carvalho

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

178 Downloads (Pure)

Abstract

Recent advances in genetic and genomic analysis have greatly improved our understanding of spatial population structure in marine species. However, studies addressing phylogeographic patterns at oceanic spatial scales remain rare. In Atlantic cod (Gadus morhua), existing range‐wide examinations suggest significant transatlantic divergence, although the fine‐scale contemporary distribution of populations and potential for secondary contact are largely unresolved. Here, we explore transatlantic phylogeography in Atlantic cod using a data‐synthesis approach, integrating multiple genome‐wide single‐nucleotide polymorphism (SNP) datasets representative of different regions to create a single range‐wide dataset containing 1,494 individuals from 54 locations and genotyped at 796 common loci. Our analysis highlights significant transatlantic divergence and supports the hypothesis of westward post‐glacial colonization of Greenland from the East Atlantic. Accordingly, our analysis suggests the presence of transatlantic secondary contact off eastern North America and supports existing perspectives on the phylogeographic history of Atlantic cod with an unprecedented combination of genetic and geographic resolution. Moreover, we demonstrate the utility of integrating distinct SNP databases of high comparability
Original languageEnglish
JournalEcology and Evolution
Volume8
Issue number23
Pages (from-to)12140-12152
ISSN2045-7758
DOIs
Publication statusPublished - 2018

Cite this

Fairweather, R., Bradbury, I. R., Helyar, S. J., de Bruyn, M., Therkildsen, N. O., Bentzen, P., ... Carvalho, G. R. (2018). Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod. Ecology and Evolution, 8(23), 12140-12152. https://doi.org/10.1002/ece3.4672
Fairweather, Robert ; Bradbury, Ian R. ; Helyar, Sarah J. ; de Bruyn, Mark ; Therkildsen, Nina Overgaard ; Bentzen, Paul ; Hansen, Jakob Hemmer ; Carvalho, Gary R. / Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod. In: Ecology and Evolution. 2018 ; Vol. 8, No. 23. pp. 12140-12152.
@article{09608f29b9df443bbd6eb9e88c64e874,
title = "Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod",
abstract = "Recent advances in genetic and genomic analysis have greatly improved our understanding of spatial population structure in marine species. However, studies addressing phylogeographic patterns at oceanic spatial scales remain rare. In Atlantic cod (Gadus morhua), existing range‐wide examinations suggest significant transatlantic divergence, although the fine‐scale contemporary distribution of populations and potential for secondary contact are largely unresolved. Here, we explore transatlantic phylogeography in Atlantic cod using a data‐synthesis approach, integrating multiple genome‐wide single‐nucleotide polymorphism (SNP) datasets representative of different regions to create a single range‐wide dataset containing 1,494 individuals from 54 locations and genotyped at 796 common loci. Our analysis highlights significant transatlantic divergence and supports the hypothesis of westward post‐glacial colonization of Greenland from the East Atlantic. Accordingly, our analysis suggests the presence of transatlantic secondary contact off eastern North America and supports existing perspectives on the phylogeographic history of Atlantic cod with an unprecedented combination of genetic and geographic resolution. Moreover, we demonstrate the utility of integrating distinct SNP databases of high comparability",
author = "Robert Fairweather and Bradbury, {Ian R.} and Helyar, {Sarah J.} and {de Bruyn}, Mark and Therkildsen, {Nina Overgaard} and Paul Bentzen and Hansen, {Jakob Hemmer} and Carvalho, {Gary R.}",
year = "2018",
doi = "10.1002/ece3.4672",
language = "English",
volume = "8",
pages = "12140--12152",
journal = "Ecology and Evolution",
issn = "2045-7758",
publisher = "John Wiley & Sons Ltd",
number = "23",

}

Fairweather, R, Bradbury, IR, Helyar, SJ, de Bruyn, M, Therkildsen, NO, Bentzen, P, Hansen, JH & Carvalho, GR 2018, 'Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod', Ecology and Evolution, vol. 8, no. 23, pp. 12140-12152. https://doi.org/10.1002/ece3.4672

Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod. / Fairweather, Robert; Bradbury, Ian R.; Helyar, Sarah J.; de Bruyn, Mark; Therkildsen, Nina Overgaard; Bentzen, Paul; Hansen, Jakob Hemmer; Carvalho, Gary R.

In: Ecology and Evolution, Vol. 8, No. 23, 2018, p. 12140-12152.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod

AU - Fairweather, Robert

AU - Bradbury, Ian R.

AU - Helyar, Sarah J.

AU - de Bruyn, Mark

AU - Therkildsen, Nina Overgaard

AU - Bentzen, Paul

AU - Hansen, Jakob Hemmer

AU - Carvalho, Gary R.

PY - 2018

Y1 - 2018

N2 - Recent advances in genetic and genomic analysis have greatly improved our understanding of spatial population structure in marine species. However, studies addressing phylogeographic patterns at oceanic spatial scales remain rare. In Atlantic cod (Gadus morhua), existing range‐wide examinations suggest significant transatlantic divergence, although the fine‐scale contemporary distribution of populations and potential for secondary contact are largely unresolved. Here, we explore transatlantic phylogeography in Atlantic cod using a data‐synthesis approach, integrating multiple genome‐wide single‐nucleotide polymorphism (SNP) datasets representative of different regions to create a single range‐wide dataset containing 1,494 individuals from 54 locations and genotyped at 796 common loci. Our analysis highlights significant transatlantic divergence and supports the hypothesis of westward post‐glacial colonization of Greenland from the East Atlantic. Accordingly, our analysis suggests the presence of transatlantic secondary contact off eastern North America and supports existing perspectives on the phylogeographic history of Atlantic cod with an unprecedented combination of genetic and geographic resolution. Moreover, we demonstrate the utility of integrating distinct SNP databases of high comparability

AB - Recent advances in genetic and genomic analysis have greatly improved our understanding of spatial population structure in marine species. However, studies addressing phylogeographic patterns at oceanic spatial scales remain rare. In Atlantic cod (Gadus morhua), existing range‐wide examinations suggest significant transatlantic divergence, although the fine‐scale contemporary distribution of populations and potential for secondary contact are largely unresolved. Here, we explore transatlantic phylogeography in Atlantic cod using a data‐synthesis approach, integrating multiple genome‐wide single‐nucleotide polymorphism (SNP) datasets representative of different regions to create a single range‐wide dataset containing 1,494 individuals from 54 locations and genotyped at 796 common loci. Our analysis highlights significant transatlantic divergence and supports the hypothesis of westward post‐glacial colonization of Greenland from the East Atlantic. Accordingly, our analysis suggests the presence of transatlantic secondary contact off eastern North America and supports existing perspectives on the phylogeographic history of Atlantic cod with an unprecedented combination of genetic and geographic resolution. Moreover, we demonstrate the utility of integrating distinct SNP databases of high comparability

U2 - 10.1002/ece3.4672

DO - 10.1002/ece3.4672

M3 - Journal article

VL - 8

SP - 12140

EP - 12152

JO - Ecology and Evolution

JF - Ecology and Evolution

SN - 2045-7758

IS - 23

ER -

Fairweather R, Bradbury IR, Helyar SJ, de Bruyn M, Therkildsen NO, Bentzen P et al. Range-wide genomic data synthesis reveals transatlantic vicariance and secondary contact in Atlantic cod. Ecology and Evolution. 2018;8(23):12140-12152. https://doi.org/10.1002/ece3.4672