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Table 4 Summary of correlation between the first two principle axes and nucleotide constraints in MARV genomes

From: Genomic analysis of codon usage shows influence of mutation pressure, natural selection, and host features on Marburg virus evolution

Base composition

f' 1

f' 2

A3S %

0.373**

−0.384**

U3S %

0.548**

−0.046**

C3S %

−0.543**

0.103NS

G3S %

−0.382**

0.492**

GC3S %

−0.456**

0.361**

GC %

−0.406**

0.388**

A %

0.58NS

−0.585**

U %

0.610**

0.163NS

G %

0.74NS

0.764**

C %

−0.589**

0.099 NS

AU %

0.405**

−0.316*

AU3S %

0.462**

−0.337**

  1. The numbers in the each column represents correlation coefficient “r” values, which are calculated in each correlation analysis
  2. NS non-significant (P > 0.05)
  3. *represents 0.01 < P < 0.05
  4. **represents P < 0.01