TABLE 3

Efficiency of screens in generating centric insertions

% of variegated/silenced
MarkerVariegated/silenced:
% of total
CentricTelomericOther
location
Centric:
% of total
Referencea
w and y9.53355123.2a
w1.11529540.2b
ry4.087b13b03.5c
y3.197303.0This study
  • The screen using both y and w was performed using boundary elements flanking w (Roseman et al. 1995). The screen using w alone was performed without the benefit of boundary elements or suppressors of variegation (Wallrath and Elgin 1995; Cryderman et al. 1998). The screen using ry was performed in the presence of a suppressor of variegation (Zhang and Spradling 1994).

  • a a, Roseman et al. (1995); b, Wallrath and Elgin (1995) and Cryderman et al. (1998); c, Zhang and Spradling (1994).

  • b The Zhang and Spradling (1994) study produced four insertions in regions h1-2, which are reported here as telomeric, to be consistent with the criteria used in this study.