Figure 3.

Nucleotide composition of the A. caulinodans genome. The GC and GC3 contents for each open reading frame were calculated and positioned on the genome. Every gene was classified in one of four classes: orphans, genes of the A. caulinodans genome without homolog in other bacteria of the data set (44 genomes) (red squares); singletons, genes with one representative in A. caulinodans and homologs in the data set (green stars); phage- or integrase-related genes (yellow triangles); duplicated genes with more than one paralog in the A. caulinodans genome (blue diamonds). GC (A) and GC3 (B) distribution across the genome; GC (C) and GC3 (D) distribution across the symbiotic region. Circles (C and D) indicate the location of the three nod loci.

Lee et al. BMC Genomics 2008 9:271   doi:10.1186/1471-2164-9-271
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