MSTN

tags: evolutionary biology, molecular biology, Thoroughbred race horses, horses, aerobic capacity, muscle development, myostatin, MSTN, myostatin-suppressing C variant, myostatin-suppressing T variant, Horse Genome Project, Equinome, researchblogging.org, peer-reviewed research, peer-reviewed paper Emerging from the mist is Rachel Alexandra, a champion American Thoroughbred who excels at winning both long and short distance races. Image: Rob Carr, 2009, Associated Press [larger view] If you've worked at or been around a racetrack very much, as I have, you'll quickly realize that everyone…