The 81st Annual Meeting of the American Association of Physical Anthropologists (2012)


Assessing relatedness within and among groups of Bolivian tamarins using several microsatellite loci

JENNIFER A. SPROSS1, ANTHONY DI FIORE2 and TODD R. DISOTELL1.

1Anthropology, New York University, 2Anthropology, University of Texas

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Tamarin monkeys live in small social groups, often comprised of several related individuals. Relatedness values within a group indicate whether a particular group is comprised of family members or new immigrants, while those between groups indicate the degree of gene flow. This study presents results obtained by genotyping five sympatric social groups of Bolivian tamarins and supplements an ongoing behavioral study of the same population. Four social groups of saddle-back tamarins (Saguinus fuscicollis) and one group of red-bellied tamarins (S. labiatus) are genotyped and compared. DNA was extracted from hair samples of 33 individuals and amplified at 13 microsatellite loci across the nuclear genome. Relatedness values between groups are compared using Genetic Analysis in Excel (GenAlEx), while those between individuals are estimated and compared using COANCESTRY. Further studies of this and other populations are warranted, genotyping a greater number of individuals and using a wider array of microsatellite loci.

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