TABLE 4

Proneural activity of sc alleles assayed by suppression of the extra macrochaetae phenotype

Ectopic machrochaetae per emc2/Df(emc) animal in region indicated
Dorsal notumDorsal scutellumDorsal head
Crossascute genotypeAnimals (n)No. (range)% relative to referenceNo. (range)% relative to referenceNo. (range)% relative to reference
1 sc+/Y 2018(♂ reference)0.95(♂ reference)1.1(♂ reference)
Males(14–23)(0–2)(0–3)
1 scM6/Y 220.4530.05500
Males(0–2)(0–1)
2 scsisB2/Y 2016.3910.951000.655
Males(13–22)(0–2)(0–2)
32012.8710.951000.19
Males(10–17)(0–2)(0–1)
1 sc+/sc+ 1324(♀ reference)2.4(♀ reference)1.8(♀ reference)
Females(17–29)(130 vs. ♀)(1–4)(250% vs. ♀)(1–3)(160% vs. ♀)
1 sc+/scM6 138.9370.417%0.422
Females(6–11)(0–1)(0–2)
  • a TM2, emc2/Df(emc) progeny from w1118/Y; Df(3L)AR11, emc-/st Ki pp ry males × virgins at 22° as follows: (1) scM6 w/+;TM2, Ubx emc2 pp/+ (w is 1.5 cM from sc and is used to deduce daughter sc genotype); (2) scM6 w/y scsisB2; TM2, Ubx emc2 pp/+ and (3) scM6 w/y scsisB3; TM2, Ubx emc2 pp/+.