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Originally Posted by
soonerguru
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Eventually, natural selection will become a real things.....
This is interesting. Do you mean actual natural selection in real-time within a short timeframe? The proof of science concepts show that it was actually natural selection that ruled out the possibility that SARS-CoV-2 was engineered in a laboratory. That was of initial paramount importance. There is no natural selection taking place in the passage of this virus in humans. Many people think something like that is occurring -- it's not. But, it has almost certainly taken place in cell culture over time as the "mother virus" (SARS-CoV) has been in labs, and in the wild, for many years. It's that change and its Var 2 relationship to receptor ACE2 that is so interesting and confirmative of the the virus in a natural, selected, state.
Malayan pangolins (Manis javanica) illegally imported into Guangdong province contain coronaviruses similar to SARS-CoV-221. Although the RaTG13 bat virus remains the closest to SARS-CoV-2 across the genome1, some pangolin coronaviruses exhibit strong similarity to SARS-CoV-2 in the RBD, including all six key RBD residues21 (Fig. 1). This clearly shows that the SARS-CoV-2 spike protein optimized for binding to human-like ACE2 is the result of natural selection.
(Andersen, K.G., Rambaut, A., Lipkin, W.I. et al. The proximal origin of SARS-CoV-2. Nat Med (2020).)
Are you interested in evolutionary biology? If so, you need to read the entire correspondence from researchers to NatureM.
It's an excellent early take.
Here is the link.
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