Table 3. Summary of correlation analysis between nucleotide constraints in CHIKV genomes.

	A3%	U3%	C3%	G3%	GC3%
A%	0.625**	−0.278**	0.261**	−0.610**	0.090NS
U%	−0.373**	0.621**	−0.587**	0.354**	−0.480**
C%	0.327**	−0.606**	0.621**	−0.377**	0.498**
G%	−0.576**	0.185*	−0.217**	0.658**	−0.080NS
GC%	0.103NS	−0.806**	0.798**	−0.153NS	0.852**

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

NS: non-significant (P>0.05).

*represents 0.01<P<0.05.

**represents P<0.01.