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Inferring ancestral demography of domestic and wild sheep using whole-genome sequence

Friday, August 22, 2014: 11:45 AM
Bayshore Grand Ballroom A (The Westin Bayshore)
Sunduimijid Bolormaa , CRC for Sheep Industry Innovation, Armidale, Australia
James Kijas , CSIRO Animal, Food and Health Sciences, Brisbane, Australia
David Coltman , University of Alberta, Edmonton, AB, Canada
Hans D Daetwyler , CRC for Sheep Industry Innovation, Armidale, Australia
Iona M MacLeod , University of Melbourne, Melbourne, Australia
Abstract Text:

We inferred a step-wise pattern of changing ancestral demography using whole-genome sequence data from four domestic sheep (Ovis aries) and four wild sheep (O. canadensis and O. dalli). The inferred demography indicates clear differences between the wild sheep and domestic sheep. Furthermore we identified marked changes in effective population size which correspond to known historical events, including glaciation events and sheep domestication.

Keywords:

demography

effective population size

runs of homozygosity

sequence error correction