Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer

S. D. Cote, John F Dallas, Freda Marshall, R. J. Irvine, R. Langvatn, S. D. Albon

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Mainland populations of Arctic reindeer and caribou Rangifer tarandus often undergo extensive movements, whereas populations on islands tend to be isolated and sedentary. To characterize the genetic consequences of this difference, levels of genetic diversity and subdivision of Svalbard reindeer (R. t. platyrhynchus) from two adjacent areas on Nordenskjiöldland, Spitsbergen were estimated using data from up to 14 microsatellites. The mean number of alleles per locus in Svalbard reindeer was 2.4 and mean expected heterozygosity per locus was 0.36. The latter value was significantly lower than in Canadian caribou and Norwegian reindeer but higher than in some other cervid species. Large samples of females (n = 743) and small samples of males (n = 38) from two sites ˜ 45 km apart showed genetic subdivision, which could be due to local population fluctuations or limited gene flow. To our knowledge, this is the first study to report significant differentiation at microsatellite loci in Rangifer at such short geographical distances. Neither population showed genetic evidence for recent population bottlenecks when loci unbiased with respect to heterozygosity were analysed. In contrast, false signals of a recent bottleneck were detected when loci upwardly biased with respect to heterozygosity were analysed. Thus, Svalbard reindeer appeared to conform to the paradigm of island populations made genetically depauperate by genetic drift.
Original languageEnglish
Pages (from-to)1923-1930
Number of pages7
JournalMolecular Ecology
Volume11
Issue number10
DOIs
Publication statusPublished - 23 Sep 2002

Fingerprint

Svalbard
Reindeer
Genetic Drift
philopatry
reindeer
genetic drift
heterozygosity
Microsatellite Repeats
microsatellite repeats
DNA
loci
population bottleneck
Population
Rangifer
population genetics
gene flow
Islands
allele
Rangifer tarandus caribou
Rangifer tarandus

Keywords

  • bottleneck
  • genetic differentiation
  • genetic drift
  • heterozygosity
  • microsatellite
  • Rangifer

Cite this

Cote, S. D., Dallas, J. F., Marshall, F., Irvine, R. J., Langvatn, R., & Albon, S. D. (2002). Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer. Molecular Ecology, 11(10), 1923-1930. https://doi.org/10.1046/j.1365-294X.2002.01582.x

Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer. / Cote, S. D.; Dallas, John F; Marshall, Freda; Irvine, R. J.; Langvatn, R.; Albon, S. D.

In: Molecular Ecology, Vol. 11, No. 10, 23.09.2002, p. 1923-1930.

Research output: Contribution to journalArticle

Cote, SD, Dallas, JF, Marshall, F, Irvine, RJ, Langvatn, R & Albon, SD 2002, 'Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer', Molecular Ecology, vol. 11, no. 10, pp. 1923-1930. https://doi.org/10.1046/j.1365-294X.2002.01582.x
Cote SD, Dallas JF, Marshall F, Irvine RJ, Langvatn R, Albon SD. Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer. Molecular Ecology. 2002 Sep 23;11(10):1923-1930. https://doi.org/10.1046/j.1365-294X.2002.01582.x
Cote, S. D. ; Dallas, John F ; Marshall, Freda ; Irvine, R. J. ; Langvatn, R. ; Albon, S. D. / Microsatellite DNA evidence for genetic drift and philopatry in Svalbard reindeer. In: Molecular Ecology. 2002 ; Vol. 11, No. 10. pp. 1923-1930.
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