Revista Chilena de Historia Natural 79 (2): 175-184, 2006
RESEARCH ARTICLE
Analisis of genetic diversity in three llama (Lama glama) populations from north-
western Argentina
The current genetic variability of three llama (Lama glama) management
units from the northwestern Argentine (NOA) was analyzed. The troops, originally comprised a unique population that 10 years ago
was divided into the current three. The DNA of 77 animals was studied by PCR amplification of 12 loci using microsatellite primers
specific of Lama glama. A high level of genetic variability is sustained by the finding of one hundred and forty total alleles, a
range of 9 to 16 allele number per locus and observed and expected hetrozygosities per locus varying from 1 to 0 and 0.9 to 0.47,
respectively. Distributed within the three troops 44 private alleles were detected and proposed for uses such as to exchange new allelic
variants. Hardy Weinberg Equilibrium test for each locus within each population showed significant deviation (P < 0.05) due to
heterozygotes deficiency which may obey to the natural polygynic behaviour of the species. A moderated genetic differentiation
between populations (Fst = 0.076; P = 0.000) may be explained by the introduction of foreing males parents at the moment of the
original population subdivision. Transference to breeders of the data here obtained may be important in future management
programmes.
Key words:
Lama
glama, population history, genetic diversity, population structure, microsatellite markers, Management
