Table 4

Functional homogeneity rates of the age-homogeneous motifs and the other motifs

Motifs whose members are of the same age class

The other motifs

P -value

(Chi-squared test)


Total number

Functional homogeneity rate a (%)

Total number

Functional homogeneity rate (%)


Binary

interaction

2419

83.5

3192

73.6

<10-4

3-motif

12457

65.9

40685

51.0

<10-4

4-motif

102689

46.6

697119

31.7

<10-4


a The definition of "functional homogeneity rate" is similar to that of "age homogeneity rate". It is calculated as the number of motifs whose members share at least one common functional category divided by the total number of motifs.

Liu et al. BMC Evolutionary Biology 2011 11:133   doi:10.1186/1471-2148-11-133

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