Welcome to the Y.K.O Community Posting Pages. This site is intended to enable users of the Y.K.O. mutant collection to share information about the collection. If you have encountered a problem with the Y.K.O. collection, please make your colleagues aware of it. This should help to increase the usefulness of this valuable community resource. Since the YKO consortium no longer has funding and has been disbanded, potential problems with the deletion strains cannot be followed-up. We hope this site will enable Y.K.O. users to identify some of the problems that are sure to exist in the mutant collection.