Fig 1.
Sampling locations of genetic sequences of the A/H1N1pdm09 virus (black dots) and seven geographic regions of mainland China.
Fig 2.
Bayesian temporal phylogenetic trees of the HA and NA genes in the A/H1N1pdm09 virus sampled in mainland China during the pandemic.
Branches were colored in grey (2009) or red (2010) based on year of viral isolation.
Table 1.
Mean substitution rates and mean tMRCA estimates for the HA and NA gene segments of the A/H1N1pdm09 virus in mainland China.
Fig 3.
Mantel correlograms of the HA and NA genes in the A/H1N1pdm09 virus sampled in mainland China during the pandemic.
Fig 4.
The scatterplots of the first two PCs from the PCA of the HA and NA genes of the A/H1N1pdm09 virus, color-coded according to seven geographic regions of mainland China.
Fig 5.
The membership probability surfaces of HA genes of A/H1N1pdm09 virus generated using an Inverse Distance Weighted interpolation.
Thick contour lines represent the boundaries of high q-values greater than 0.6.
Fig 6.
The membership probability surfaces of NA genes of A/H1N1pdm09 virus generated using an Inverse Distance Weighted interpolation.
Thick contour lines represent the boundaries of high q-values greater than 0.6.