TABLE 9

Dominant enhancement by sys-1 and pop-1

gene-y
gene-x+/+sys-3/sys-3gon-14/gon-14gon-15/gon-15gon-16/gon-16gon-4/gon-4
+/Bal ND48 n = 12224 n = 1368 n = 1365 n = 18236 n = 220
sys-1/Bal 0 n = 20283 n = 13683 n = 12630 n = 16219 n = 15631 n = 200
pop-1/Bal <1 n = 20887 n = 13670 n = 12844 n = 14834 n = 17240 n = 210

Values are percentage of DTCs missing, assayed by gonadal arm elongation. n, number of arms scored. Alleles were pop-1(q645), sys-1(q544), sys-3(q632), gon-14(q631), gon-15(q574), gon-16(q568), and gon-4(e2575). All genetic interactions observed are significant with P < 0.0001. For gon-4 sys-1 and gon-4 pop-1 no significant interaction was observed; P = 0.16 and P = 0.43, respectively.