Figure 6.

Analysis of Helena activity in natural populations. Helena transcripts (ratio Helena/rp49) of ovaries and carcasses of D. simulans and D. mojavensis (see Methods for additional information). D. simulans strains from the Drosophila species stock center: 1 (14021-0251.195 – North America, U.S.A), 2 (14021-0251.194 – Winters, California, U.S.A), 3 (14021-0251.198 – Noumea, New Caledonia), and from natural populations 4 (Amieu, France), 5 (Valence, France). D. mojavensis strains from natural populations: 1 (Grand Canyon, Arizona, U.S.A), and from the Drosophila species stock center 2 (15081-1352.02 – Catalina Island, California, U.S.A), 3 (15081-1352.09 – Santa Rosa Mountains, Arizona, U.S.A), 4 (15081-1352.24 – Sonora, Mexico), 5 (15081-1352.22 – Catalina Island, California, U.S.A). Black = ovaries. Gray = Carcasses. Standard deviation is indicated with bars.