Some phytoplasmas also have a very small genome size.
Still, many researchers believe there is some selective pressure on bacteria to maintain small genome size.
The genome size of the organism is three billion basepairs in this example.
The basis for this rule is still under investigation, although genome size may play a role.
The genome size was 58.55 Mbp with an estimated 16,549 genes.
It has a small genome size, grows very rapidly, and is easily transformed.
The genome sizes range from 4.5 - 6kb and is circular.
In other words, the genome size is much larger than would be expected given the total number of protein coding genes.
An example of increasing genome size over time is seen in filamentous plant pathogens.
The genome size is approximately 365kbp and in total, 328 genes have been found.