1. Thomas, M, Cameron, J R, and Davis, R W (1974) Viable hybrids of bacteriophage lambda and eukaryotlc DNA Proc Natl Acad Sci USA 71,4579–4583
2. Murray, N E and Murray, K (1974) Mampulatlon of restrlctlon targets in phage h to form receptor chromosomes for DNA fragments Nature 251,476–478
3. Rambach, A and Tlollals, P (1974) Bacteriophage λ having EcoRI endonuclease sites only in the nonessential region ofthe genome Proc Natl Acad Sci USA 71,3927–3930
4. Sambrook, J, Fntsch, E F, and Mamatls, T (1989) Molecular Clonzng A Laboratory Manual (Part I), Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
5. Lacombe, M L, Podgorskl, G J, Franke, J, and Kessm, R H (1986) Molecular cloning and developmental expression of the cyclic nucleotlde phosphodlesterase gene of Dzctyostellum drscordeum J El01 Chem 261, 16,811–16