Revealing The Evolutionary Origin Of Bacterial Chromosomes

Researchers have unveiled the evolutionary origin of the different chromosomal architectures found in three species of Agrobacterium. A comprehensive comparison of the Agrobacterium sequence information with the genome sequences of other bacteria suggests a general model for how second chromosomes are formed in bacteria.* Agrobacteria are members of the Rhizobiaceae family, which also includes the benign, nitrogen-fixing organisms Rhizobium and Sinorhizobium.

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Filed under: Biology on March 29th, 2009