Fig. 1

Circular genome maps of Shinella zoogloeoides ATCC 19623 (a) and XJ20 (b) from inside to outside indicate the following: Circle 1: G + C skew; green, GC skew>0; orange, GC skew<0; Circle 2: G + C content (median represents the above average content, the outer circle is greater than the average content (red), and the inner circle is less than the average content (blue)); Circle 3: rRNA and tRNA genes distribution represented in scaffold sequence; Circle 4 and 5: open reading frame (ORF) distribution, minus and plus strand, different colors represent the functional classification of COG with different CDS; Circle 6: indicator of genome size