Table 3.

Analysis of correlation between the first two principle axes and nucleotide compositions

Nucleotide contents	Axis 1	Axis 2
A3	−0.109	−0.380
U3	0.022	−0.589**
G3	−0.356	0.299
C3	0.539**	0.504*

^**Correlation is significant at the 0.01 level (2-tailed).

^*Correlation is significant at the 0.05 level (2-tailed).