[Compatibility between F-like genetic transfer factors].

A study has been made of compatibility among four F-like factors of genetic transfer (pAP22-4, pAP38, pAP39 and pAP41) labeled separately by transpozones Tn1 and Tn9. It has been established that pAP38 transfer factor is compatible with plasmids pAP22-4, pAP39 and pAP412, while pAP41 transfer factor is compatible with plasmids pAP22-4 and pAP38 but is incompatible with plasmid pAP39.