The 84th Annual Meeting of the American Association of Physical Anthropologists (2015)


Clade-specific SNPs reveal hybrid ancestry of individuals in captive guenon populations

ANTHONY J. TOSI1 and KATE M. DETWILER2.

1Department of Anthropology, Kent State University, 2Department of Anthropology, Florida Atlantic University

March 28, 2015 , Gateway Ballroom 2/3/4/5 Add to calendar

Molecular phylogenies of the guenons indicate that polytypic species groups (i.e. mona grp, cephus grp, nictitans grp, lhoesti grp) form monophyletic clusters, as proposed by earlier morphological analyses. Subsequent studies have identified synapomorphic X- and Y-chromosomal single nucleotide polymorphisms (SNPs) useful for detecting introgression between hybridizing members of different species groups. Here we put these assays to the test by applying them to samples from two captive guenon populations. In one case, the separate species lineages of a known hybrid were confirmed using these methods. In a second case, a hybrid animal was discovered through these assays and later confirmed by a review of zoo records. The results demonstrate the utility of clade-specific SNPs as tools for uncovering mixed genetic heritage in captive guenons, and predict they will likewise be valuable methods for detecting introgression in wild populations.