Microsatellite analysis of genetic diversity of the Vietnamese sika deer (Cervus nippon pseudaxis)

Thevenon Sophie, Thuy L.T., Ly L.V., Maudet Frédéric, Bonnet A., Jarne Philippe, Maillard Jean-Charles. 2004. Microsatellite analysis of genetic diversity of the Vietnamese sika deer (Cervus nippon pseudaxis). Journal of Heredity, 95 (1) : pp. 11-18.

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Abstract : The Vietnamese sika deer (Cervus nippon pseudaxis) is an endangered subspecies of economic and traditional value in Vietnam. Most living individuals are held in traditional farms in central Vietnam, others being found in zoos around the world. Here we study the neutral genetic diversity and population structure of this subspecies using nine microsatellite loci in order to evaluate the consequences of the limited number of individuals from which this population was initiated and of the breeding practices (i.e., possible inbreeding). Two hundred individuals were sampled from several villages. Our data show both evidence for limited local inbreeding and isolation by distance with a mean FST value of 0.02 between villages. This suggests that exchange of animals occurs at a local scale, at a rate such that highly inbred mating is avoided. However, the genetic diversity, with an expected heterozygosity (He) of 0.60 and mean number of alleles (k) of 5.7, was not significantly larger than that estimated from zoo populations of much smaller census size (17 animals sampled; He = 0.65, k = 4.11). Our results also suggest that the Vietnamese population might have experienced a slight bottleneck. However, this population is sufficiently variable to constitute a source of individuals for reintroduction in the wild in Vietnam. (Résumé d'auteur)

Mots-clés Agrovoc : Cervus nippon, espèce en danger, Animal de zoo, Structure de la population, Variation génétique, Microsatellite, Inbreeding

Mots-clés géographiques Agrovoc : Viet Nam

Classification Agris : L10 - Animal genetics and breeding

Auteurs et affiliations

  • Thuy L.T., NIAH (VNM)
  • Ly L.V., NIAH (VNM)
  • Maudet Frédéric, CIRAD-EMVT-ECONAP (THA)
  • Bonnet A., Parc zoologique du bois de Vincennes (FRA)
  • Jarne Philippe, CEFE (FRA)
  • Maillard Jean-Charles, CIRAD-EMVT-SANTE ANIMALE (FRA)

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