Table 3 Summary of correlation analysis between the A, U, C, G contents and A₃, U₃, C₃, G₃ contents in all selected samples.

A%

r = 0.965**

r = -0.160^NS

r = -0.328^NS

r = -0.555**

r = -0.679**

U%

r = 0.357^NS

r = 0.691**

r = -0.853**

r = -0.164^NS

r = -0.825**

C%

r = -0.622**

r = -0.191^NS

r = 0.926**

r = -0.140^NS

r = 0.662**

G%

r = -0.532*

r = -0.181^NS

r = -0.139^NS

r = 0.945**

r = 0.580**

(C+G)%

r = -0.844**

r = -0.270^NS

r = 0.687**

r = 0.462*

r = 0.907**