MBNL3 and fetal growth restriction: In contrast, DKO embryos suffered from intrauterine growth restriction; this was severe at E18.5 (P < 0.001, Wilcoxon rank-sum tests), when placental efficiency was seen to be significantly lower than in Mbnl3 single KOs (S5F Fig; P = 0.015, Wilcoxon rank-sum tests), but could be observed from as early as E13.5 (Fig 3E; P = 0.041, Wilcoxon rank-sum tests).