TABLE 3.

Correlation analysis between the codon compositions (A3s, U3s, G3s, C3s, and GC3s), the ENC values, nucleotide compositions (A%, U%, G%, C%, and GC%) of the 56 PEDV strains.

	A3s	U3s	G3s	C3s	GC3s
A	0.109	–0.069	0.038	–0.017	0.007
U	0.278*	0.906**	−0.471**	−0.880**	−0.806**
G	−0.929**	−0.698**	0.948**	0.447**	0.872**
C	0.192	−0.586**	–0.145	0.773**	0.348**
GC	−0.503**	−0.865**	0.610**	0.792**	0.844**
GC1s	0.257	0.108	–0.212	–0.087	–0.158
GC2s	0.306*	–0.111	−0.411**	0.258	–0.105
GC12s	0.376**	0.028	−0.396**	0.068	–0.187
ENC	0.03	−0.858**	0.268*	0.859**	0.666**

The numbers in each column represent correlation coefficient “r” values, which are calculated in each correlation analysis.

“*” means 0.01 < P < 0.05; “**” means P < 0.01.