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Table 5 Distribution of rare 6-mers in cyanobacterial genomes

From: Highly plastic genome of Microcystis aeruginosa PCC 7806, a ubiquitous toxic freshwater cyanobacterium

Ratio (a) Obs/Shuf Number of 6-mers
  Mic-PCC7806 Mic-NIES843 Cwa-WH8501 Syn-PCC6803
< 0.02 6 (4) 12 (8) 6 (3) 0 (0)
< 0.04 13 (8) 11 (5) 9 (3) 7 (3)
< 0.06 10 (4) 8 (3) 6 (3) 5 (2)
< 0.08 2 (1) 2 (1) 3 (2) 6 (1)
< 0.1 2 (1) 3 (0) 13 (6) 14 (1)
  1. (a) Ratio between the frequency observed (Obs) for a given 6-mers and the frequency for the same 6-mers after shuffling (Shuf) of the genome sequence.
  2. Figures in bold represent the number of 6-mers present 50× more in the shuffled sequence than in the original sequence. Figures in parentheses indicate the number of palindromic sites.
  3. See the Methods section for the strain identifiers.