I regularly participate in a weekly journal club during the school year with a lot of behavior genetics researchers, and also am part of an online group for the Behavior Genetics Association. Most of the active researchers in this field DO NOT expect to find any powerful gene associations with membership in the Study of Exceptional Talent (SET),

http://cty.jhu.edu/set/index.html

which is the study population reported on here.

"Students have no shortcomings, they have only peculiarities." Israel Gelfand