Cited by 4Genetic diversity and population structureGenetic and phenotypic traits in livestockEvolution and Genetic Dynamics

Functional immune diversity in reindeer reveals a high Arctic population at risk

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Lukacs, Morten, Nymo, Ingebjørg H., Madslien, Knut, Våge, Jørn, Veiberg, Vebjørn, Rolandsen, Christer Moe, Bøe, Cathrine Arnason, Sundaram, Arvind Y. M. +1 more·2023·Frontiers in Ecology and Evolution

Abstract

Climate changes the geographic range of both species as well as pathogens, causing a potential increase in the vulnerability of populations or species with limited genetic diversity. With advances in high throughput sequencing (HTS) technologies, we can now define functional expressed genetic diversity of wild species at a larger scale and identify populations at risk. Previous studies have used genomic DNA to define major histocompatibility complex (MHC) class II diversity in reindeer. Varying numbers of expressed genes found in many ungulates strongly argues for using cDNA in MHC typing strategies to ensure that diversity estimates relate to functional genes. We have used available reindeer genomes to identify candidate genes and established an HTS approach to define expressed MHC class I and class II diversity. To capture a broad diversity we included samples from wild reindeer from Southern Norway, semi-domesticated reindeer from Northern Norway and reindeer from the high Artic archipelago Svalbard. Our data show a medium MHC diversity in semi-domesticated and wild Norwegian mainland reindeer, and low MHC diversity reindeer in Svalbard reindeer. The low immune diversity in Svalbard reindeer provides a potential risk if the pathogenic pressure changes in response to altered environmental conditions due to climate change, or increased human-related activity.

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Authors
Lukacs, M., Nymo, I. H., Madslien, K., Våge, J., Veiberg, V., Rolandsen, C. M., Bøe, C. A., Sundaram, A. Y. M., & Grimholt, U.
Affiliations
  • Norwegian Veterinary Institute (NO)
  • Norwegian Institute for Nature Research (NO)
  • Oslo University Hospital (NO)
Corresponding author
Grimholt, Unni
Venue
Frontiers in Ecology and Evolution
Published
2023-01-11
Volume
10
ISSN
2296-701X (ISSN-L)
OpenAlex
W4315650963
Cited by
4
References
80
Citations by year
2026: 1 · 2025: 2 · 2024: 1
FWCI
0.66
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Ecology and Evolution (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
Funders
  • Environment Agency
  • the Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
reindeer, MHC diversity, major histocompatibility complex, Svalbard reindeer, semi-domesticated reindeer, wild reindeer, climate change, population vulnerability

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