(A) Seven-week old adult male and female schistosomes were electroporated with 5 μg siRNA duplexes targeting luciferase (siLuc), Smcbx (siSmcbx) or Smmbd2/3 (siSmmbd2/3). Following 48 hr, total RNA was harvested and subjected to qRT-PCR. Percent knockdown (KD) and statistical significance (Student’s t test, two tailed, unequal variance) is indicated. All siRNA and qRT-PCR DNA sequences are included in S1 Table. (B) Representative anterior ends and ovaries of female schistosomes treated with siRNA duplexes at day seven post treatment. Blue = DAPI; Green = EdU+ cells. Bar = 50 μM. Column scatter plot (horizontal bars = mean and +/- StDev of mean) represents the percentage of proliferating cells remaining in female worms treated with siRNA duplexes for seven days (siLuc, n = 11; siSmcbx, n = 11; siSmmbd2/3 = 12). The percentage of proliferating cells affected by knockdown (in comparison to siLuc control worms) is indicated where significant (one-way ANOVA followed by Tukey HSD test).