See https://www.biorxiv.org/content/10.1101/2021.05.24.445313v1 for details. From top to bottom Sites found to be under positive selection by MEME on internal branches (colored by the % of branches under selection). Sites found to be under negative selection by FEL on internal branches. SARS-CoV-2 partial genome; ticks in th middle of the bars show sites that are conserved on the amino-acid level by all 4 species. Non-recombinant fragments inferre">