“Type D” killer whale genomes reveal long-term small population size and low genetic diversity
International audience Genome sequences can reveal the extent of inbreeding in small populations. Here, we present the first genomic characterization of type D killer whales, a distinctive eco/morphotype with a circumpolar, subantarctic distribution. Effective population size is the lowest estimated...
Published in: | Journal of Heredity |
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Main Authors: | , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.science/hal-04069493 https://doi.org/10.1093/jhered/esac070 |
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ftunimontpellier:oai:HAL:hal-04069493v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
effective population size inbreeding killer whale morphotype runs of homozygosity [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] |
spellingShingle |
effective population size inbreeding killer whale morphotype runs of homozygosity [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] Foote, Andrew, D Alexander, Alana Ballance, Lisa, T Constantine, Rochelle Galletti Vernazzani Muñoz, Bárbara Guinet, Christophe Robertson, Kelly, M Sinding, Mikkel-Holger, S Sironi, Mariano Tixier, Paul Totterdell, John Towers, Jared, R Wellard, Rebecca Pitman, Robert, L Morin, Phillip, A “Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
topic_facet |
effective population size inbreeding killer whale morphotype runs of homozygosity [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] |
description |
International audience Genome sequences can reveal the extent of inbreeding in small populations. Here, we present the first genomic characterization of type D killer whales, a distinctive eco/morphotype with a circumpolar, subantarctic distribution. Effective population size is the lowest estimated from any killer whale genome and indicates a severe population bottleneck. Consequently, type D genomes show among the highest level of inbreeding reported for any mammalian species (F ROH ≥ 0.65). Detected recombination cross-over events of different haplotypes are up to an order of magnitude rarer than in other killer whale genomes studied to date. Comparison of genomic data from a museum specimen of a type D killer whale that stranded in New Zealand in 1955, with 3 modern genomes from the Cape Horn area, reveals high covariance and identity-by-state of alleles, suggesting these genomic characteristics and demographic history are shared among geographically dispersed social groups within this morphotype. Limitations to the insights gained in this study stem from the nonindependence of the 3 closely related modern genomes, the recent coalescence time of most variation within the genomes, and the nonequilibrium population history which violates the assumptions of many model-based methods. Long-range linkage disequilibrium and extensive runs of homozygosity found in type D genomes provide the potential basis for both the distinctive morphology, and the coupling of genetic barriers to gene flow with other killer whale populations. |
author2 |
Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) University of Otago Dunedin, Nouvelle-Zélande Oregon State University (OSU) University of Auckland Auckland Centro de Conservacion Cetacea Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) NOAA National Marine Fisheries Service (NMFS) National Oceanic and Atmospheric Administration (NOAA) Evolutionary Genomics Section IT University of Copenhagen (ITU) MARine Biodiversity Exploitation and Conservation - MARBEC (UMR MARBEC ) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Cetacean Research Centre (CETREC WA) Exmouth, WA, Australia Bay Cetology Project ORCA Perth, WA, Australia Marine Mammal Institute Marine Mammal and Turtle Division (MMTD) Southwest Fisheries Science Center (SWFSC) National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA)-NOAA National Marine Fisheries Service (NMFS) National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA) |
format |
Article in Journal/Newspaper |
author |
Foote, Andrew, D Alexander, Alana Ballance, Lisa, T Constantine, Rochelle Galletti Vernazzani Muñoz, Bárbara Guinet, Christophe Robertson, Kelly, M Sinding, Mikkel-Holger, S Sironi, Mariano Tixier, Paul Totterdell, John Towers, Jared, R Wellard, Rebecca Pitman, Robert, L Morin, Phillip, A |
author_facet |
Foote, Andrew, D Alexander, Alana Ballance, Lisa, T Constantine, Rochelle Galletti Vernazzani Muñoz, Bárbara Guinet, Christophe Robertson, Kelly, M Sinding, Mikkel-Holger, S Sironi, Mariano Tixier, Paul Totterdell, John Towers, Jared, R Wellard, Rebecca Pitman, Robert, L Morin, Phillip, A |
author_sort |
Foote, Andrew, D |
title |
“Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
title_short |
“Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
title_full |
“Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
title_fullStr |
“Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
title_full_unstemmed |
“Type D” killer whale genomes reveal long-term small population size and low genetic diversity |
title_sort |
“type d” killer whale genomes reveal long-term small population size and low genetic diversity |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04069493 https://doi.org/10.1093/jhered/esac070 |
long_lat |
ENVELOPE(-135.021,-135.021,61.583,61.583) |
geographic |
Cape Horn New Zealand |
geographic_facet |
Cape Horn New Zealand |
genre |
Killer Whale Killer whale |
genre_facet |
Killer Whale Killer whale |
op_source |
ISSN: 0022-1503 EISSN: 1471-8505 Journal of Heredity https://hal.science/hal-04069493 Journal of Heredity, 2023, 114 (2), pp.94 - 109. ⟨10.1093/jhered/esac070⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/jhered/esac070 hal-04069493 https://hal.science/hal-04069493 doi:10.1093/jhered/esac070 WOS: 000956731700001 |
op_doi |
https://doi.org/10.1093/jhered/esac070 |
container_title |
Journal of Heredity |
container_volume |
114 |
container_issue |
2 |
container_start_page |
94 |
op_container_end_page |
109 |
_version_ |
1798848969574449152 |
spelling |
ftunimontpellier:oai:HAL:hal-04069493v1 2024-05-12T08:06:28+00:00 “Type D” killer whale genomes reveal long-term small population size and low genetic diversity Foote, Andrew, D Alexander, Alana Ballance, Lisa, T Constantine, Rochelle Galletti Vernazzani Muñoz, Bárbara Guinet, Christophe Robertson, Kelly, M Sinding, Mikkel-Holger, S Sironi, Mariano Tixier, Paul Totterdell, John Towers, Jared, R Wellard, Rebecca Pitman, Robert, L Morin, Phillip, A Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) University of Otago Dunedin, Nouvelle-Zélande Oregon State University (OSU) University of Auckland Auckland Centro de Conservacion Cetacea Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) NOAA National Marine Fisheries Service (NMFS) National Oceanic and Atmospheric Administration (NOAA) Evolutionary Genomics Section IT University of Copenhagen (ITU) MARine Biodiversity Exploitation and Conservation - MARBEC (UMR MARBEC ) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Cetacean Research Centre (CETREC WA) Exmouth, WA, Australia Bay Cetology Project ORCA Perth, WA, Australia Marine Mammal Institute Marine Mammal and Turtle Division (MMTD) Southwest Fisheries Science Center (SWFSC) National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA)-NOAA National Marine Fisheries Service (NMFS) National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA) 2023 https://hal.science/hal-04069493 https://doi.org/10.1093/jhered/esac070 en eng HAL CCSD Oxford University Press (OUP) info:eu-repo/semantics/altIdentifier/doi/10.1093/jhered/esac070 hal-04069493 https://hal.science/hal-04069493 doi:10.1093/jhered/esac070 WOS: 000956731700001 ISSN: 0022-1503 EISSN: 1471-8505 Journal of Heredity https://hal.science/hal-04069493 Journal of Heredity, 2023, 114 (2), pp.94 - 109. ⟨10.1093/jhered/esac070⟩ effective population size inbreeding killer whale morphotype runs of homozygosity [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] info:eu-repo/semantics/article Journal articles 2023 ftunimontpellier https://doi.org/10.1093/jhered/esac070 2024-04-17T15:30:38Z International audience Genome sequences can reveal the extent of inbreeding in small populations. Here, we present the first genomic characterization of type D killer whales, a distinctive eco/morphotype with a circumpolar, subantarctic distribution. Effective population size is the lowest estimated from any killer whale genome and indicates a severe population bottleneck. Consequently, type D genomes show among the highest level of inbreeding reported for any mammalian species (F ROH ≥ 0.65). Detected recombination cross-over events of different haplotypes are up to an order of magnitude rarer than in other killer whale genomes studied to date. Comparison of genomic data from a museum specimen of a type D killer whale that stranded in New Zealand in 1955, with 3 modern genomes from the Cape Horn area, reveals high covariance and identity-by-state of alleles, suggesting these genomic characteristics and demographic history are shared among geographically dispersed social groups within this morphotype. Limitations to the insights gained in this study stem from the nonindependence of the 3 closely related modern genomes, the recent coalescence time of most variation within the genomes, and the nonequilibrium population history which violates the assumptions of many model-based methods. Long-range linkage disequilibrium and extensive runs of homozygosity found in type D genomes provide the potential basis for both the distinctive morphology, and the coupling of genetic barriers to gene flow with other killer whale populations. Article in Journal/Newspaper Killer Whale Killer whale Université de Montpellier: HAL Cape Horn ENVELOPE(-135.021,-135.021,61.583,61.583) New Zealand Journal of Heredity 114 2 94 109 |