Variabilidade genética e verificação de paternidade da colônia cativa do mico-leão-preto (Leontopithecus chrysopygus) (Primates, Callithricidae) utilizando marcadores microssatélites
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2015-06-03Autor
Ayala Burbano, Paola Andrea
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The main goal of any captive breeding program consists is maximizing the
conservation of genetic diversity. Groups kept in captivity are particularly susceptible
to the loss of genetic diversity, inbreeding depression and adaptation to captivity, due
to their small size. The genetic characterization of wild and captive populations is an
important tool both to minimize these impacts and for the conservation of these
species, since it enables the development of management strategies aimed at
maintenance of genetic diversity. In this context, the main objective of the study was
to evaluate genetic variability and paternity for animals of black lion tamarin from
Centro de Primatología do Rio de Janeiro, Fundacão Parque Zoológico de Sao Paulo,
Parque Ecológico de Sao Carlos and 14 specimen belonging to the Durrell
Conservation Trust in England using 15 microsatellite loci. The results of the allelic
richness and expected heterozygosity showed similar values of alleles numbers and
heterozygosity when compared with other species of Callitrichidae. Factorial
correspondence analysis (FCA) showed greater homogeneity among captive animals
than wild animals from Capão Bonito. The captive groups showed no differentiation
among them and high differentiation from the wild Capão Bonito population. The data
obtained herein are fundamental to increase the knowledge in genetic aspects of
tamarins and support breeding programs to prevent loss of genetic diversity and
inbreeding.