Southern blot analyses of Type I survivors generated in <i>tlm</i>Δ <i>tlc1</i>Δ mutants in liquid culture.

<p>(A) Schematic illustration of the screening procedures for genes that affect Type II survivor formation (refer to details in main text). (B and C) Southern blot analyses of survivor types in the <i>tlc1</i>Δ strain (Type I and Type II serves as controls) and twenty-six <i>tlm</i>Δ <i>tlc1</i>Δ double mutants using a TG probe (B) and a Y' probe (C).