the linear genome to circularise to form a plasmid after infection. During the 1980s, Sternberg developed P1 as a vector for cloning large pieces of eukaryotic DNA. A P1 gene map based on a partial DNA sequence was published in 1993 by Michael Yarmolinsky and Małgorzata Łobocka, and the genome was completely sequenced by Łobocka and colleagues in 2004. References External links Viralzone: P1-like phage Molecular biology Myoviridae