Abstract
The independent emergence late in 2020 of the B.1.1.7, B.1.351, and P.1 lineages of SARS-CoV-2 prompted renewed concerns about the evolutionary capacity of this virus to overcome public health interventions and rising population immunity. Here, by examining patterns of synonymous and non-synonymous mutations that have accumulated in SARS-CoV-2 genomes since the pandemic began, we find that the emergence of these three “501Y lineages” coincided with a major global shift in the selective forces acting on various SARS-CoV-2 genes. Following their emergence, the adaptive evolution of 501Y lineage viruses has involved repeated selectively favored convergent mutations at 35 genome sites, mutations we refer to as the 501Y meta-signature. The ongoing convergence of viruses in many other lineages on this meta-signature suggests that it includes multiple mutation combinations capable of promoting the persistence of diverse SARS-CoV-2 lineages in the face of mounting host immune recognition.
| Original language | English |
|---|---|
| Pages (from-to) | 5189-5200.e7 |
| Number of pages | 20 |
| Journal | Cell |
| Volume | 184 |
| Issue number | 20 |
| Early online date | 7 Sept 2021 |
| DOIs | |
| Publication status | Published - 30 Sept 2021 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- convergent mutations
- COVID 19
- directional selection
- diversifying selection
- evolutionary adaptation
- immune evasion
- lineage-defining mutations
- positive selection
- recurrent mutations
- transmission advantage
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