[1] Univ Penn, Penn Ctr Bioinformat, Philadelphia, PA 19104 USA
[2] Univ Georgia, Ctr Trop & Emerging Global Dis, Athens, GA 30602 USA
[3] Univ Georgia, Ctr Appl Genet Technol, Athens, GA 30602 USA
[4] Univ Penn, Sch Med, Philadelphia, PA 19104 USA
[5] Univ Georgia, Dept Genet, Athens, GA 30602 USA
[6] Univ Georgia, Dept Comp Sci, Athens, GA 30602 USA
[7] Univ Penn, Dept Biol, Philadelphia, PA 19104 USA