Figure 2. SML1 Deletion Rescues Mother Cell Lifespan of ETI Cells Independently of Telomere Length.
(A) SML1 deletion had no significant effect on the rate of bulk population senescence in ETI cells passaged on solid media to induce LTI-senescence. (B) Southern blot analysis of telomeric DNA restriction fragment lengths of cells taken from serial streaks shown in (A), using TG(1-3) repeat telomeric probe. ETI (tlc1Δ) and ETI sml1Δ(tlc1Δsml1Δ) displayed similar rates of telomere shortening and the lower end of the telomere length distributions were similar.