Genomic Sequences
SARS-COV2 genomic sequences are obtained from covid-19 data portal (www.covid19dataportal.org; ENA browser (European nucleotide archive) of European institute. Collection date and place of collection are recorded for each sequence, and these viral genomes are grouped by their collection date within 1st and 10th of each month to use for analysis so that sequences should represent gaps of at least approximately of one month. Also, in each month group, SARS-COV2 genomes those were collected in different places in the world were used to analyzed to maintain diversification. URL of each of these sequences are catalogued in Suppl Table 1 .