Table 4 

Functional homogeneity rates of the agehomogeneous motifs and the other motifs 

Motifs whose members are of the same age class 
The other motifs 
P value (Chisquared test) 



Total number 
Functional homogeneity rate ^{a }(%) 
Total number 
Functional homogeneity rate (%) 



Binary interaction 
2419 
83.5 
3192 
73.6 
<10^{4 } 
3motif 
12457 
65.9 
40685 
51.0 
<10^{4 } 
4motif 
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:10.1186/1471214811133 