Can genetic tests predict athletic ability?

Do  certain genes predict superior performance in particular sports?  Genetic researchers say that there is no basis whatsoever to make assertions that based on results on testing of genes of certain athletes you can predict a future super star. Evan Ashley, MD PhD from Stanford University states that companies that promise to analyze your DNA in order to have a clear view on how your body responds to diet and training are not founded.  We are not to that place yet despite 39 companies selling genetic tests directly to consumers for sports and fitness.  He warns genes are a complicated business.  Key athletic traits usually result from a complex interaction of multiple genes and environmental factors.  Culture, personality, climate, altitude and social support may all play roles in athletes development.  The researchers concluded, that the predictive value of such tests in the context of training responses or talent identification in sport is virtually zero.