by Summary:
Deep dive into it.. Translated from science-speak, what this means is that if we analyze the entire RBD of the three strains, ignoring the obvious differences (i.e. non-synonymous substitutions) among them, which are mainly found in the RBM (which, recall, is identical between CoV2 and Pangolin), and construct a phylogenetic tree for synonymous substitutions, CoV2 is still closer to RaTG13 than to the pangolin strain. Which is rather strange in light of the fact that the pangolin strain and CoV2 have identical RBMs (which are segments inside RBD). The authors go on to put forth a conjecture that this may be the result of convergent evolution, in other words, that CoV2 and the pangolin strain came to possess identical RBMs each in their own way, rather than through recombination
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Deep dive into it.. Translated from science-speak, what this means is that if we analyze the entire RBD of the three strains, ignoring the obvious differences (i.e. non-synonymous substitutions) among them, which are mainly found in the RBM (which, recall, is identical between CoV2 and Pangolin), and construct a phylogenetic tree for synonymous substitutions, CoV2 is still closer to RaTG13 than to the pangolin strain. Which is rather strange in light of the fact that the pangolin strain and CoV2 have identical RBMs (which are segments inside RBD). The authors go on to put forth a conjecture that this may be the result of convergent evolution, in other words, that CoV2 and the pangolin strain came to possess identical RBMs each in their own way, rather than through recombination
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Deep dive into it..
Translated from science-speak, what this means is that if we analyze the entire RBD of the three strains, ignoring the obvious differences (i.e. non-synonymous substitutions) among them, which are mainly found in the RBM (which, recall, is identical between CoV2 and Pangolin), and construct a phylogenetic tree for synonymous substitutions, CoV2 is still closer to RaTG13 than to the pangolin strain. Which is rather strange in light of the fact that the pangolin strain and CoV2 have identical RBMs (which are segments inside RBD).
The authors go on to put forth a conjecture that this may be the result of convergent evolution, in other words, that CoV2 and the pangolin strain came to possess identical RBMs each in their own way, rather than through recombination between common ancestors. Because it would have required a rather unique recombination event — as if someone cut out a precise RBM segment from a pangolin strain and used it to replace the RBM in RaTG13. Talk about Intelligent Design!
Lab-made? CoV2 genealogy through the lens of gain-of-function research by Yuri Deigin https://t.co/galbFOlgg0— ?️ Mindfulness Trading ?️ (@SummitsTrading) April 24, 2020