Abstract # 970 Poster # 164:

Scheduled for Friday, August 19, 2005 07:00 PM-09:00 PM: (Cambridge/Oxford Room) Poster Presentation

Conflicting mitochondrial and Y-chromosomal patterns suggest Mauritian long-tailed macaques (Macaca fascicularis) may be descended from multiple founding stocks

A. J. Tosi1,2 and C. S. Coke3
1Department of Anthropology, New York University, Department of Anthropology, New York University, New York, NY, USA, 2New York Consortium in Evolutionary Primatology (NYCEP), 3Panther Tracks Learning Center- PPI, Immokalee, FL
      Long-tailed macaques (Macaca fascicularis) were introduced to the island of Mauritius approximately 400 years ago by European sailors. Early protein studies could not conclusively determine whether the founding population originated from (1) southern Thailand / peninsular Malaysia, or (2) the Greater Sunda Islands. This distinction is important because recent mitochondrial and Y-chromosomal analyses suggest that animals from these two geographic areas may represent divergent phylogenetic subunits within the species. Moreover, since geographic variants of M. fascicularis differ in their response to several biomedical tests, it behooves us to understand the natural history of the various populations. We therefore surveyed several Mauritian macaques for portions of mitochondrial (12S/16S) and Y-chromosomal (TSPY/SRY) DNA and compared these sequences with M. fascicularis lineages sampled across the species range. Mitochondrial analyses cluster the Mauritian individuals (identical sequences) with a clade of animals from the Greater Sunda Islands and the Philippines. In contrast, Y-chromosomal analyses cluster the Mauritian macaques (identical sequences) with M. fascicularis from peninsular Malaysia and southern Thailand. Thus, the conflicting maternal and paternal patterns reported here suggest that Mauritian M. fascicularis may be descended from a mixed stock including animals from both phylogenetic subunits.