A novel Ac, which like Ac2 (Rhoades and Dempsey,
MGN 57:14), exhibits direct dosage, has been recovered from bz-rcy lines.
One dose of Ac-flow is incapable of triggering Type II events at bz-m4,
while two and three doses result in a flow pattern (Peterson, Genetics
54:249) of spots which are smaller in size (timing) and of greater density
(frequency) than those produced by bz-m4 in the presence of four standard
Ac elements. Both Ac2 and Ac-flow exhibit tissue specific expression.
|Doses of Ac-flow|
|Doses of bz-m4||1||2||3|
- = no spots; + = spots; ( ) = not tested
Patrick S. Schnable and Peter A. Peterson
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