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Hogging the spotlight: South Farms pig gets international attention
Date:12/4/2012

URBANA A detailed annotation of the genome of T.J. Tabasco, a pig from the University of Illinois South Farms, is the outcome of over 10 years of work by an international consortium. It is expected to speed progress in both biomedical and agricultural research. U of I Vice President for Research Lawrence Schook said that the College of ACES played a crucial role in getting the work started.

Funding that came through ACES allowed Schook and others to put together the Swine Genome Sequencing Consortium, an alliance of university, industry, and government laboratories in the U.S., Europe, and Asia. The USDA committed 10 million dollars to the project. Today the project includes scientists from more than 50 research groups.

Schook said that the project has three main objectives: (1) to serve as a blueprint for understanding evolution and domestication, (2) to advance research on animal production and health, and (3) to explore ways to use the pig in biomedical applications.

The first publication, which just appeared in Nature, focuses on the pig's evolution. Researchers compared the reference genome from T.J. Tabasco with genomes of wild and domestic pigs from Europe and Asia (including archaeological and museum samples), and to human, mouse, dog, horse, and cow genomes.

"The pig is interesting because the wild boar still exists," Schook explained. "We could look at domestication, and we also looked at speciation. From an evolutionary perspective, these Sus species diverge in a very short time."

The researchers traced the domestic pig back to Southeast Asia. From there, it spread across Eurasia. The glaciation period separated the pigs into two groups about one million years ago. Today they are almost sub-species. "However, their chromosome structures have stayed very similar," Schook noted.

Pigs were independently domesticated in western Eurasia and East Asia 10,000 to 15,000 years ago. There is eviden
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Contact: Susan Jongeneel
sjongene@illinois.edu
217-333-3291
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert

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