Extended Data Fig. 4: Principal Components Analysis of mutational spectra in Clade 20 C.
From: Divergent SARS-CoV-2 variant emerges in white-tailed deer with deer-to-human transmission
Principal Components Analysis of the mutational spectra of SARS-CoV-2 genomes isolated from different hosts within Clade 20 C. The first two components account for 62.2% of the variation between the samples. Variation in the spectra along the first principal component associated with changes in the frequency of C > U. Samples appear to be spread along the first component by host-type. Ontario WTD samples (pink) and a human sample from Ontario (blue) appear close together in the projection, suggesting that they share a very similar mutation spectrum.
