id author title date pages extension mime words sentences flesch summary cache txt cord-328659-miujzgtd Mishra, Akhilesh Mutation landscape of SARS-CoV-2 reveals five mutually exclusive clusters of leading and trailing single nucleotide substitutions 2020-07-27 .txt text/plain 6064 361 55 title: Mutation landscape of SARS-CoV-2 reveals five mutually exclusive clusters of leading and trailing single nucleotide substitutions Furthermore, clustering analysis revealed unique geographical distribution of SARS-CoV-2 variants defined by their mutation profile. The rapid global spread of SARS-CoV-2 in a short period of time and the availability of a large number of fully sequenced genomes provide us with a unique opportunity of understanding the short-term temporal evolution of this virus in humans in a near real-time scale. By this approach we propose the classification of the SARS-CoV-2 virus genomes into 5 mutually exclusive lineages with unique set of co-occurring mutations and geographic distribution. Our analysis revealed a total of 40 nucleotide substitutions which occurred at > 1% in the SARS-CoV-2 genomes (Table 1 and Figure 1A ). We consider a specific mutation or a set of cooccurring mutations as "lineage-defining" for SARS-CoV-2, only when they are present in at least 2% (n=30) of the sequences analysed. ./cache/cord-328659-miujzgtd.txt ./txt/cord-328659-miujzgtd.txt