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. 2013 Aug;195(16):3596–3602. doi: 10.1128/JB.00421-13

Table 1.

Loss of chemoreceptor genes in E. coli and Shigella genomes

Lost genea No. of genomes
E. coli
Shigella
All (n = 183) Finished (n = 46) All (n = 28) Finished (n = 8)
tar 0 0 12 2
tsr 4 2 4 1
aer 1 1 12 4
trg 34 16 7 3
tap 41 18 10 2
a

Excluding detected sequencing/assembly/annotation errors (see Data Set S1 in the supplemental material for details).