Genome-wide variations of SARS-CoV-2 infer evolution relationship and transmission route
Lehai Zhang, shifu wang, Qian Ren, Junjie Yang, Yanqin Lu, Lei Zhang, Zhongtao Gai
doi: https://doi.org/10.1101/2020.04.27.20081349
Abstract
In the epidemic evolution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the issues of mutation, origin, typing and the effect of mutation on molecular detection remain to be unrevealed. In order to identify the evolutionary relationship of SARS-CoV-2 and evaluate the detection efficiency of primers that are currently used in different countries, we retrieved genomic sequences of 373 SARS-CoV-2 strains from multiple databases and performed genome-wide variation analysis. According to the nucleotide C28144T variation, the SARS-CoV-2 can be divided into group A (117 strains) and group B (256 strains). The spike protein gene (S gene) coding region 1841 (total 23403) A1841G, formed a B1 subgroup (40 strains) in group B, of which 30 strains were from European and American countries in March (especially Washington, USA). These mutations are likely to be influenced by the environment or the immunization selection pressure of different populations.
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