Southern blot showing 10 μg of Arabidopsis
genomic DNA digested with HindIII (lane 1),
EcoRI (lane 2), PstI (lane 3),
XbaI (lane 4), and PvuII (lane 5) probed
with the [32P]PMP22 open reading frame, washed under
stringent conditions, and detected by autoradiography.