Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Temporal signal in whole-genome alignment as estimated by TempEst (Rambaut et al. 2016). Genetic distance from the root in substitutions per site is calculated either from (A) the phylogeny reconstructed from the whole alignment (supplementary fig. S2A, Supplementary Material online), or (B) the phylogeny reconstructed from the masked alignment (supplementary fig. S2B, Supplementary Material online).
