Aspergillus sectoring on plates. Help!

[Roxanne A Yamashita]

Dear Friends,
Hi! I have been looking at a few aspergillus mutants via their growth
from a single inoculation point on plates.  I noticed that the mutants
have a great deal of sectoring (5-10X the amount of the wt GR5).  I
believe that some of this is due to the Aspergillus kicking out the
integrated insert, but I would like some other ideas.  What is known
about this phenomena on species in the wild?  Please help!
Roxanne Yamashita   roxanney at bcm.tmc.edu