Abstract: ABSTRACT The pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has motivated an intensive analysis of its molecular epidemiology following its worldwide spread. To understand the early evolutionary events following its emergence, a data set of 985 complete SARS-CoV-2 sequences was assembled. Variants showed a mean of 5.5 to 9.5 nucleotide differences from each other, consistent with a midrange coronavirus substitution rate of 3 × 10−4 substitutions/site/year. Almost one-half of sequence changes were C→U transitions, ...
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Topics: 
Genetics
Evolutionary biology
Virology