Severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) virus
appeared at the end of 2019 and was subsequently named coronavirus disease-19
(COVID-19). Its worldwide emergence resulted in a large number of infections. Many
studies depicted that the information about genomic variations in viruses has important
effects on the prognosis and treatment of transmissible diseases. In this chapter, we
collected various genomic variants, performed a phylogenetic analysis of recently
registered genomes at various databases, and characterized the SARS-CoV-2 operating
on silicon tools. Many complete sets of SARS-COV-2 are available in different
databases such as GenBank and verified by National Genomics Data Center (NGDC)
and National Microbiology Data Center (NMDC) databases. We found various
variants, and the most common variants were 3037C>T (ORF1ab), 14408C>T
(ORF1ab), 23403A>G (S), 25563G>T (ORF3a), 1059C>T (ORF1ab) and 241C>T (5'
UTR) in online data samples. In addition, the complete genome sequence identity of
the SARS-COV-2 results was 96.2% similar to that of a bat. These identified variations
have increased the frequency of the spread of SARS-CoV-2. This information assists a
comprehensive collection that combines genomic characterization, epidemiological and
graphical records
Keywords: Genomic variants, Phylogenetic analysis, SARS-COV-2, ORF3a , epidemiological records