[Isolation of a development revertant of Myxococus Xamthus]

fruA::Tc omega 5 is a development deficient strain of M. Xamthus. Transposon TnV was used to randomly mutagenize various sites of fruA::Tc omega 5 chromosome. Fruiting body formation was restored in one TnV insertion mutant, designated XM1206. The TnV-inserted DNA fragment from XM1206 chromosome was cloned, which may be served as a probe to isolate the corresponding allele from wild-type strain.