TABLE 1

Properties of the strains in regard to the P-M system of hybrid dysgenesis

Tested line females × Harwich-2 malesCantony females × Tested line males
Tested linemsnmsn
M lines
Cantony1000.0100.70.63
Muller599.51.041.31.54
Sevelin1000.021.01.42
Oregon99.21.330.00.03
Exe241000.0100.00.07
P lines
Harwich-20.30.651000.010
Tautavel 670.00.0286.01.25
Texas 0070.00.0598.61.23
P(1A)” lines
Lk-P(1A)1.12.0351.11.55
E2419.08.761.01.45
Ch-P(1A)19.214.454.210.111
Salt-P(1A)1000.070.61.66
Telomeric P-reporter lines
WG-11031000.090.40.95
WG-115298.81.3100.00.04
GR-83399.80.540.00.04
  • The ability of lines to repress P-induced gonadal dysgenesis was tested by crossing replicate sets of 3–10 females of these lines with five Harwich-2 males (A* assay). The ability of lines to induce P-induced gonadal dysgenesis was tested by crossing replicate sets of 5–10 males of these lines with 10 Cantony females (A assay). In both cases, the G1 flies were allowed to develop at 29°. For each replicate test cross, 60 to 100 ovaries were examined in the progeny. m, s, n are, respectively, the mean percentage of GD sterility, the standard deviation among replicates, and the number of replicates performed. “P(1A)” lines are lines with naturally occurring P element(s) at 1A.