Article
Human adaptive evolution at Myostatin (GDF8), a regulator of muscle growth.
American journal of human genetics - 1 Dec 2006
Saunders Matthew A, Good Jeffrey M, Lawrence Elizabeth C, Ferrell Robert E, Li Wen-Hsiung, Nachman Michael W
Abstract excerpt
Myostatin (GDF8) is a negative regulator of muscle growth in mammals, and loss-of-function mutations are associated with increased skeletal-muscle mass in mice, cattle, and humans. Here, we show that positive natural selection has acted on human nucleotide variation at GDF8, since the observed ratio of nonsynonymous:synonymous changes among humans is significantly greater than expected under the neutral model and...
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