Cited by 62Genetic diversity and population structureForensic and Genetic ResearchMarine and fisheries research

Genomic differentiation and demographic histories of Atlantic and Indo-Pacific yellowfin tuna (Thunnus albacares) populations

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Barth, Julia M.I., Damerau, Malte, Matschiner, Michael, Jentoft, Sissel, Hanel, Reinhold·2017·Genome Biology and Evolution

Abstract

Recent developments in the field of genomics have provided new and powerful insights into population structure and dynamics that are essential for the conservation of biological diversity. As a commercially highly valuable species, the yellowfin tuna (Thunnus albacares) is intensely exploited throughout its distribution in tropical oceans around the world, and is currently classified as near threatened. However, conservation efforts for this species have so far been hampered by limited knowledge of its population structure, due to incongruent results of previous investigations. Here, we use whole-genome sequencing in concert with a draft genome assembly to decipher the global population structure of the yellowfin tuna, and to investigate its demographic history. We detect significant differentiation of Atlantic and Indo-Pacific yellowfin tuna populations as well as the possibility of a third diverged yellowfin tuna group in the Arabian Sea. We further observe evidence for past population expansion as well as asymmetric gene flow from the Indo-Pacific to the Atlantic.

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Crossref · 10.1093/gbe/evx067

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  • Genomic analyses have revealed asymmetrical dispersal from the Indian Ocean yellowfin tuna into the Atlantic and highlighted that yellowfin tuna found along all the South African coast are derived from the Indian population.

    “Moreover, genomic analyses have revealed asymmetrical dispersal from the Indian Ocean yellowfin tuna into the Atlantic and highlighted that yellowfin tuna found along all the South African coast are derived from the Indian population (Barth et al., 2017; Mullins et al., 2018).”

    From A review of the fisheries, life history and stock structure of tropical tuna (skipjack Katsuwonus pelamis, yellowfin Thunnus albacares and bigeye Thunnus obesus) in the Indian Ocean (2021) · cites this paper as Barth et al., 2017

    The Discussion section, “Demographic Histories and Asymmetric Gene Flow,” reports migration estimates about ten times higher from the Indo-Pacific to the Atlantic than in the reverse direction. But the Sample Collection section lists only one South African site, Cape Town, and the Results section says all except one of its seven specimens grouped with the Indo-Pacific clade. The paper therefore does not establish that yellowfin tuna along all of South Africa’s coast derive from the Indian population. (LLM, conf=0.89)

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  • Using genome wide SNPs, Barth et al. (2017) found genetic differentiation of yellowfin tuna from the Arabian Sea with respect to those from the Atlantic and Indo-Pacific.

    “Using genome wide SNPs, Barth et al. (2017) found genetic differentiation of yellowfin tuna from the Arabian Sea with respect to those from the Atlantic and Indo-Pacific.”

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Authors
Barth, J. M. I., Damerau, M., Matschiner, M., Jentoft, S., & Hanel, R.
Affiliations
  • University of Oslo (NO)
  • Johann Heinrich von Thünen-Institut (DE)
Corresponding author
  • Barth, Julia M.I.
  • Hanel, Reinhold
Venue
Genome Biology and Evolution
Published
2017-04
Volume
9
Issue
4
Pages
1084-1098
ISSN
1759-6653 (ISSN-L)
OpenAlex
W2605858675
Cited by
62
References
95
Citations by year
2026: 8 · 2025: 5 · 2024: 5 · 2023: 8 · 2022: 9 · 2021: 9 · 2020: 6 · 2019: 8 · 2018: 2 · 2017: 1
FWCI
3.09
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Genome Biology and Evolution (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
Funders
  • Norwegian Sequencing Centre
  • Universitetet i Oslo
  • Bundesministerium für Ernährung und Landwirtschaft
  • Bundesamt für Landwirtschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
Keywords
yellowfin tuna, population structure, demographic history, genetic differentiation, demographic expansion, asymmetric gene flow, Atlantic populations, tuna conservation, whole genome sequencing, draft genome assembly

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