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Join Dave Micklos, Jan Witkowski, and staff commentators for a lively discussion of DNA in the news from world-renowned Cold Spring Harbor Laboratory!
BIG DOG, little dog
Size differences between dogs come down to a single change in a single gene.
Duration: 3 minutes
All dogs are members of the same species, and each characteristic breed is a result of selective breeding by humans. Now, scientists have found that the extreme differences in dog size – between say a Chihuahua and Great Dane – are largely determined by a single change in a single gene.
"A Single IGF1 Allele is a Major Determinant of Small Size in Dogs" by Nathan B. Sutter and others, Science (volume 316), April 6, 2007, pages 112-115.
POSTED April 25, 2007
DNA Today Archives
From dinosaur DNA to monkey's uncles, we've stored previous episodes here.
- Maize (Corn) Genome Completed November 19, 2009
- 100 Years of Corn Research at CSHL November 19, 2009
- George Shull explains hybrid corn and heterosis November 6, 2009
- Jumping Gene Caught in the Act October 26, 2009
- 2009 Nobel Prize in Medicine or Physiology October 5, 2009
- Ardipithecus Ramidus (Ardi) Walked Upright October 5, 2009
- The Primate Fossil Ida – Science Review June 3, 2009
- The Neanderthal Genome Project May 21, 2009
- Genome Scans Pay OffMay 18, 2007
- No Escape for GM Pollen? May 10, 2007
- The Real Monkey's UncleMay 3, 2007
- BIG DOG, little dog April 25, 2007
- Dino Protein is for the Birds April 20, 2007
