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Spatial genetic structureof the "Gos d'Atura" dog breed in Catalonia (Spain)
Manuel Ruiz-GarciaI,II,III; Jordi JordanaIV
IDepartamento de Ciencias Biologicas, Instituto de Genética, Universidad de Los Andes, Calle 18, Carrera 1E, Bogotá, DC, Colombia.
IIDepartamento de Biologia, Unidad de Genética (Biologia Evolutiva), Facultad de Ciencias, Pontificia Universidad Javeriana, CRA7A, No. 43-82, Bogotá, DC, Colombia. Send correspondence to M.R.-G.
IIICigeem, Avd. Virgen Montserrat, 207, 6° la. Barcelona, 08026 Spain.
IVDepartament de Patologia I de Produccio Animals, Unitat de Genética I Millora Animal, Facultat de Veterinaria, Universitat Autonoma de Barcelona 08193. Bellaterra, Barcelona, Spain.
ABSTRACT
Six "Gos d'Atura" dog populations were studied in Catalonia (Spain) using 21 allozymic loci. Of these loci, 11 were polymorphic (Sod, Lap, Mpi, Alb, Pep-D, Tf, a1B, Pi-1, Prt-1, Prt-2 and Pa-1). The levels of expected average heterozygosity and the percentage of polymorphism were high compared to other mammals, and all populations were in Hardy-Weinberg equilibrium. The overall genetic heterogeneity was relatively small (Fst = 0.04), although significant. Only one locus (Pi-1) showed clear significant heterogeneity. This locus also showed a significant monotonic cline when a spatial autocorrelation analysis was conducted. Other loci (Sod A, Alb S, Tf B, Pi-1 F, Mpi A, Pep-D A) showed significant spatial structure but were not monotonic clinal. Some of them, such as Tf B and Pep-D, showed differentiation between distant populations and Mpi A showed significant similarity between the closest populations.
Keywords: genetic structure; Gos d'Atura; dog breed.
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