Genetic differentiation among North Atlantic killer whale populations

Andrew David Foote; Julia Thidamarth Vilstrup Mouatt; Renaud De Stephanis; Philippe Verborgh; Sandra Cathrine Abel Nielsen; Robert Deaville; Lars Kleivane; Vidal Martin; Patrick J O Miller; Nils Oien; Monica Pérez-Gil; Morten Rasmussen; Robert J. Reid; Kelly M. Robertson; Emer Rogan; Tiu Similä; Maria L. Tejedor; Heike Vester; Gisli A. Vikingsson; Eske Willerslev; Tom Gilbert; Stuart B. Piertney

doi:10.1111/j.1365-294X.2010.04957.x

Genetic differentiation among North Atlantic killer whale populations

Andrew David Foote, Julia Thidamarth Vilstrup Mouatt, Renaud De Stephanis, Philippe Verborgh, Sandra Cathrine Abel Nielsen, Robert Deaville, Lars Kleivane, Vidal Martin, Patrick J O Miller, Nils Oien, Monica Pérez-Gil, Morten Rasmussen, Robert J. Reid, Kelly M. Robertson, Emer Rogan, Tiu Similä, Maria L. Tejedor, Heike Vester, Gisli A. Vikingsson, Eske WillerslevTom Gilbert, Stuart B. Piertney

70 Citations (Scopus)

Abstract

Population genetic structure of North Atlantic killer whale samples was resolved from differences in allele frequencies of 17 microsatellite loci, mtDNA control region haplotype frequencies and for a subset of samples, using complete mitogenome sequences. Three significantly differentiated populations were identified. Differentiation based on microsatellite allele frequencies was greater between the two allopatric populations than between the two pairs of partially sympatric populations. Spatial clustering of individuals within each of these populations overlaps with the distribution of particular prey resources: herring, mackerel and tuna, which each population has been seen predating. Phylogenetic analyses using complete mitogenomes suggested two populations could have resulted from single founding events and subsequent matrilineal expansion. The third population, which was sampled at lower latitudes and lower density, consisted of maternal lineages from three highly divergent clades. Pairwise population differentiation was greater for estimates based on mtDNA control region haplotype frequencies than for estimates based on microsatellite allele frequencies, and there were no mitogenome haplotypes shared among populations. This suggests low or no female migration and that gene flow was primarily male mediated when populations spatially and temporally overlap. These results demonstrate that genetic differentiation can arise through resource specialization in the absence of physical barriers to gene flow.

Original language	English
Journal	Molecular Ecology
Volume	20
Issue number	3
Pages (from-to)	629-641
Number of pages	13
ISSN	0962-1083
DOIs	https://doi.org/10.1111/j.1365-294X.2010.04957.x
Publication status	Published - Feb 2011

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Foote, A. D., Mouatt, J. T. V., De Stephanis, R., Verborgh, P., Nielsen, S. C. A., Deaville, R., Kleivane, L., Martin, V., Miller, P. J. O., Oien, N., Pérez-Gil, M., Rasmussen, M., Reid, R. J., Robertson, K. M., Rogan, E., Similä, T., Tejedor, M. L., Vester, H., Vikingsson, G. A., ... Piertney, S. B. (2011). Genetic differentiation among North Atlantic killer whale populations. Molecular Ecology, 20(3), 629-641. https://doi.org/10.1111/j.1365-294X.2010.04957.x

Foote, AD, Mouatt, JTV, De Stephanis, R, Verborgh, P, Nielsen, SCA, Deaville, R, Kleivane, L, Martin, V, Miller, PJO, Oien, N, Pérez-Gil, M, Rasmussen, M, Reid, RJ, Robertson, KM, Rogan, E, Similä, T, Tejedor, ML, Vester, H, Vikingsson, GA, Willerslev, E , Gilbert, T & Piertney, SB 2011, 'Genetic differentiation among North Atlantic killer whale populations', Molecular Ecology, vol. 20, no. 3, pp. 629-641. https://doi.org/10.1111/j.1365-294X.2010.04957.x

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title = "Genetic differentiation among North Atlantic killer whale populations",

abstract = "Population genetic structure of North Atlantic killer whale samples was resolved from differences in allele frequencies of 17 microsatellite loci, mtDNA control region haplotype frequencies and for a subset of samples, using complete mitogenome sequences. Three significantly differentiated populations were identified. Differentiation based on microsatellite allele frequencies was greater between the two allopatric populations than between the two pairs of partially sympatric populations. Spatial clustering of individuals within each of these populations overlaps with the distribution of particular prey resources: herring, mackerel and tuna, which each population has been seen predating. Phylogenetic analyses using complete mitogenomes suggested two populations could have resulted from single founding events and subsequent matrilineal expansion. The third population, which was sampled at lower latitudes and lower density, consisted of maternal lineages from three highly divergent clades. Pairwise population differentiation was greater for estimates based on mtDNA control region haplotype frequencies than for estimates based on microsatellite allele frequencies, and there were no mitogenome haplotypes shared among populations. This suggests low or no female migration and that gene flow was primarily male mediated when populations spatially and temporally overlap. These results demonstrate that genetic differentiation can arise through resource specialization in the absence of physical barriers to gene flow.",

author = "Foote, {Andrew David} and Mouatt, {Julia Thidamarth Vilstrup} and {De Stephanis}, Renaud and Philippe Verborgh and Nielsen, {Sandra Cathrine Abel} and Robert Deaville and Lars Kleivane and Vidal Martin and Miller, {Patrick J O} and Nils Oien and Monica P{\'e}rez-Gil and Morten Rasmussen and Reid, {Robert J.} and Robertson, {Kelly M.} and Emer Rogan and Tiu Simil{\"a} and Tejedor, {Maria L.} and Heike Vester and Vikingsson, {Gisli A.} and Eske Willerslev and Tom Gilbert and Piertney, {Stuart B.}",

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doi = "10.1111/j.1365-294X.2010.04957.x",

language = "English",

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AU - Foote, Andrew David

AU - Mouatt, Julia Thidamarth Vilstrup

AU - De Stephanis, Renaud

AU - Verborgh, Philippe

AU - Nielsen, Sandra Cathrine Abel

AU - Deaville, Robert

AU - Kleivane, Lars

AU - Martin, Vidal

AU - Miller, Patrick J O

AU - Oien, Nils

AU - Pérez-Gil, Monica

AU - Rasmussen, Morten

AU - Reid, Robert J.

AU - Robertson, Kelly M.

AU - Rogan, Emer

AU - Similä, Tiu

AU - Tejedor, Maria L.

AU - Vester, Heike

AU - Vikingsson, Gisli A.

AU - Willerslev, Eske

AU - Gilbert, Tom

AU - Piertney, Stuart B.

PY - 2011/2

Y1 - 2011/2

N2 - Population genetic structure of North Atlantic killer whale samples was resolved from differences in allele frequencies of 17 microsatellite loci, mtDNA control region haplotype frequencies and for a subset of samples, using complete mitogenome sequences. Three significantly differentiated populations were identified. Differentiation based on microsatellite allele frequencies was greater between the two allopatric populations than between the two pairs of partially sympatric populations. Spatial clustering of individuals within each of these populations overlaps with the distribution of particular prey resources: herring, mackerel and tuna, which each population has been seen predating. Phylogenetic analyses using complete mitogenomes suggested two populations could have resulted from single founding events and subsequent matrilineal expansion. The third population, which was sampled at lower latitudes and lower density, consisted of maternal lineages from three highly divergent clades. Pairwise population differentiation was greater for estimates based on mtDNA control region haplotype frequencies than for estimates based on microsatellite allele frequencies, and there were no mitogenome haplotypes shared among populations. This suggests low or no female migration and that gene flow was primarily male mediated when populations spatially and temporally overlap. These results demonstrate that genetic differentiation can arise through resource specialization in the absence of physical barriers to gene flow.

AB - Population genetic structure of North Atlantic killer whale samples was resolved from differences in allele frequencies of 17 microsatellite loci, mtDNA control region haplotype frequencies and for a subset of samples, using complete mitogenome sequences. Three significantly differentiated populations were identified. Differentiation based on microsatellite allele frequencies was greater between the two allopatric populations than between the two pairs of partially sympatric populations. Spatial clustering of individuals within each of these populations overlaps with the distribution of particular prey resources: herring, mackerel and tuna, which each population has been seen predating. Phylogenetic analyses using complete mitogenomes suggested two populations could have resulted from single founding events and subsequent matrilineal expansion. The third population, which was sampled at lower latitudes and lower density, consisted of maternal lineages from three highly divergent clades. Pairwise population differentiation was greater for estimates based on mtDNA control region haplotype frequencies than for estimates based on microsatellite allele frequencies, and there were no mitogenome haplotypes shared among populations. This suggests low or no female migration and that gene flow was primarily male mediated when populations spatially and temporally overlap. These results demonstrate that genetic differentiation can arise through resource specialization in the absence of physical barriers to gene flow.

U2 - 10.1111/j.1365-294X.2010.04957.x

DO - 10.1111/j.1365-294X.2010.04957.x

M3 - Journal article

C2 - 21241391

SN - 0962-1083

VL - 20

SP - 629

EP - 641

JO - Molecular Ecology

JF - Molecular Ecology

IS - 3

ER -

Genetic differentiation among North Atlantic killer whale populations

Abstract

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