Ovaries from E14.5 CD1 embryos were separated from the mesonephros, snap-frozen, and stored at -80°C. Two independent ChIP-seq experiments were performed by Active Motif Inc. using 20-30 ug of shared chromatin from different pools of embryonic ovaries (n=80-100 ovaries/ChIP), and 4 ug of FOXL2 antibody (Novus, NB100-1277). Libraries were prepared by Active Motif Inc.