Table 1. Medea^dah and Medea^o-fut1 show Medea-like selfish genetic behavior.

Progeny of crosses between parents of several different genotypes are shown. M refers to the Medea^dah- or Medea^o-fut1-bearing chromosome; + refers to the non–Medea-bearing homolog. The maternal copy number (0 to 2) of bcd-driven miRNAs (maternal toxin) targeting the endogenous dah or o-fut1, and the zygote copy number (0 to 2), and percentage of embryos inheriting bnk-driven dah or o-fut1 (zygotic antidote) are indicated, as are the adult progeny genotypes predicted for Mendelian inheritance of Medea^dah or Medea^o-fut1. The percent embryo survival was normalized to that of wild-type (w¹¹¹⁸), which was 93.80±3.19. −, not measured.

		Inherited by the
Parental Genotype		Oocyte	Embryo	Adult M progeny %		Embryo Survival %
Male	Female	Maternal Toxin	Zygotic Antidote %	Predicted	Observed (dah, o-fut1)	Predicted	Observed (dah, o-fut1) ± sd
M/+	+/+	0	50(0); 50(1)	50	50 (n>12,000), 50 (n>11,000)	100	98.05±2.3, 96.28±2.8
M/M	M/M	2	100(2)	100	-	100	98.97±6.0, 92.74±6.0
+/+	M/+	1	50(0); 50(1)	50	100 (n>10,000), 100 (n>12,000)	50	49.56±0.5, 47.43±2.0
M/M	M/+	1	50(1); 50(2)	100	-	100	98.05±2.3, 97.35±2.0
M/+	M/+	1	25(0); 50(1); 25(2)	75	-	75	73.62±1.5, 73.9±1.7
M/+	M/M	2	50(1); 50(2)	100	-	100	97.7±1.0, 98.41±1.5
+/+	M/M	2	100(1)	100	-	100	99.47±1.5, 94.51±2.0
M/M	+/+	0	100(1)	100	-	100	95.22±1.1, 96.99±2.5
+/+	+/+	0	100(0)	0	-	100	93.80±3.19