coronavirus(8) SARS-CoV-2(7) Genome(5) Region(5) complex(5) pangolin(5) virus(5) RaTG13(5) Result(5) mechanism(5) Human(5) Multiple sequence alignment(5) the spike protein(5) SARS-CoV(5) ORF8(5) bat(5) Evolution of SARS-CoV-2(4) Recombination(4) virus(4) Phylogenetic network(4) Mutation(3) non-structural protein(3) classical(3) hosts(3) Neutral(3) base(3) bases(3) RNA sequence(3) Pangolin coronavirus (PCoV)(3) Characteristics(3)