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Table 2 Numbers of synonymous and nonsynonymous substitution per site (dN/dS) in H1N1 HA

From: Long intervals of stasis punctuated by bursts of positive selection in the seasonal evolution of influenza A virus

Protein sites

dN/dS ratio; tree partition

 

All branches

Inter-clade branches*

Other branches

H1N1 HA

0.20 ± 0.04

0.15 ± 0.08

0.21 ± 0.04

H1N1 HA1

0.22 ± 0.05

0.19 ± 0.12

0.22 ± 0.05

H1N1 HA2

0.15 ± 0.05

0.08 ± 0.09

0.17 ± 0.06

  1. *refers to several branches of the H1N1 HA tree that connect the 2000–2001 clade and the 2000–2004 clade; unlike H3N2, the trunk is not identifiable in the H1N1 tree within the analyzed time interval.
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Biology Direct

ISSN: 1745-6150

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