Recent progress in studies on the bacterial chromosome is summarized. Although the
greatest amount of information comes from studies on Escherichia coli, reports on studies of …

We present edition VII of the linkage map of Salmonella typhimurium. We list a total of 750
genes; 680 of these are located on the linkage map, and the remaining 70 are not yet …

The three decades since the discovery of chloroplast DNA (chNA; re—viewed in Kirk, 1986)
have been marked by an ever increasing depth and breadth in our understanding of the …

The genome sequences of Chlamydia trachomatis mouse pneumonitis (MoPn) strain Nigg
(1 069 412 nt) and Chlamydia pneumoniae strain AR39 (1 229 853 nt) were determined …

Background Whole-genome comparisons can provide great insight into many aspects of
biology. Until recently, however, comparisons were mainly possible only between distantly …

Gene order in bacteria is poorly conserved during evolution 1, 2, 3. For example, although
many homologous genes are shared by the proteobacteria Escherichia coli, Haemophilus …

The organization of bacterial genes into operons was originally ascribed to the benefits of co-
regulation. More recently, the “selfish operon” model, in which operons are formed by …

One of the adjuncts to DNA replication and repair is the formation of occasional
chromosomal rearrangements—deletions, tandem duplications, and inversions. Several …

New pleiotropic mutants were isolated that express either the phoA, psiE or psiO promoter
constitutively and simultaneously alter bacterial alkaline phosphatase regulation, carbon …

The order of genes in the chromosome of enteric bacteria has been evolutionarily conserved
despite the existence of mechanisms for rearrangement. Homologous chromosomal …