Detection of long C-strands by Southern
hybridization (T4G4)8. Lane 1, DNA
from mature macronuclei; lanes 2–4, anlagen DNA isolated from control
cells at 60 h of development; lane 2, DNA from untreated cells;
lane 3, DNA from fivefold concentrated cells; lane 4, DNA from
concentrated cells treated with 0.4% DMSO; lane 5, anlagen DNA
isolated from aphidicolin-treated cells at 60 h of development;
lane 6, anlagen DNA isolated at 44 h of development. The position
of 1 kb and 2 kb markers are shown to the right.