Viral evolution is an important aspect of the epidemiology of viral diseases such as influenza (influenza virus), AIDS (HIV), and hepatitis (e.g. HCV).

Virus evolution is the outcome of two independent events. The first is genome mutation and the second is selection. Viruses with RNA genomes tend to have high mutation rates, but some appear to be evolutionarily stable nonetheless. Viruses have distinct phenotypes.

2011年3月30日 · Herein, I review some current ideas on the evolutionary origins of viruses and assess how well these theories accord with what we know about the evolution of contemporary viruses. I note the growing evidence for the theory that viruses arose before the last universal cellular ancestor (LUCA).

2018年10月10日 · A model Ebola virus (EBOV; Makona variant) phylogeny illustrates the evolution of a single amino acid substitution (glycoprotein, A82V) that is associated with viral adaptation to the human host...

Explore a collection of the most read and most cited articles making an impact in Virus Evolution published within the past two years. Discover now. In light of the global pandemic, Virus Evolution has collated relevant coronavirus and SARS-CoV-2 papers in the journal for easy access.

In a recent genome-wide structural phylogenomic analysis, we have shown that large-to-medium-sized viruses coevolved with cellular ancestors and have chosen the evolutionary reductive route.

Through gene shuffling, viruses can evolve in even bigger leaps. When two related viruses infect a host at the same time, they can share or reshuffle their genes. They can rearrange their genetic information to make new viral strains that carry genes, or pieces of genes, from both.

2025年1月17日 · Viral evolution refers to the heritable genetic changes that a virus accumulates during its life time, which can arise from adaptations in response to environmental changes or the immune...

Results therefore highlight two important phases in viral evolution: (i) an early cell-like existence of viruses (the precursors of modern virocells) and (ii) a late transition to the viral mode, as we know it today.

2024年11月23日 · One possible hypothesis, called devolution or the regressive hypothesis, proposes to explain the origin of viruses by suggesting that viruses evolved from free-living cells. However, many components of how this process might have occurred are a mystery.