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Correspondence analyses based on relative synonymous codon usage in the entire coding genomic sequences (A), spike (B), envelope (C), membrane (D), and nucleo-capsid (E) encoding sequences of chiroptera-hosted alpha- and beta-CoVs. (F,G) show trends in relative synonymous codon usage among CoVs infecting various bat species across different geographical locations. The viruses infecting Rhinolophus sp. are encircled and yellow-colored.
