Patterns of Synonymous Codon Usage on Human Metapneumovirus and Its Influencing Factors

Table 5

Summary of correlation between the first two principle axes and nucleotide contents in samples.

Base compositions	𝑓^′1 (43.27%)	𝑓^′2 (33.38%)
A3%	𝑟=−0.2247^NS	𝑟=−0.2491^NS
U3%	𝑟=−0.8091 **	𝑟=0.4454^NS
C3%	𝑟=0.3106^NS	𝑟=−0.8233 **
G3%	𝑟=0.1449^NS	𝑟=0.6393 **
GC3%	𝑟=0.8447 **	𝑟=−0.5043 *

The number in the table represents as correlation coefficient r value, which is calculated from each correlation analysis. Abbreviation: NS represents as nonsignificant (P > 0.05), *represents P < 0.05, **represents P < 0.01.