ParA-like protein influences the distribution of multi-copy chromosomes in cyanobacterium Synechococcus elongatus PCC 7942.

While many bacteria, such as Escherichia coli and Bacillus subtilis, harbour a single-copy chromosome, freshwater cyanobacteria have multiple copies of each chromosome per cell. Although it has been reported that multi-copy chromosomes are evenly distributed along the major axis of the cell in cyanobacterium Synechococcus elongatus PCC 7942, the distribution mechanism of these chromosomes remains unclear. In S.

Light-dependent and asynchronous replication of cyanobacterial multi-copy chromosomes.

While bacteria such as Escherichia coli and Bacillus subtilis harbour a single circular chromosome, some freshwater cyanobacteria have multiple chromosomes p er cell. The detailed mechanism(s) of cyanobacterialreplication remains unclear. To elucidate the replication origin (ori ), form and synchrony of the multi-copy genome in freshwater cyanobacteria Synechococcus elongatus PCC 7942 we constructed strain S.