[Lundquist EA] I'm quite certain that these polymorphisms are defects in the mec-8 gene. u456 and rh170 are small deletions of the same 2.5kb HIII fragment, u391 is a complex rearrangement that has a breakpoint in the same 2.5kb HIII fragment, and mn472 is a Tc1 insertion into the same 2.5kb HIII fragment. Furthermore, the area of these cosmids on the physical map is in good agreement with the genetic map position of mec-8. Rescue is hopefully on the way.