Evolutionary paths: Scientists have found new patterns in protein evolution

(Skolkovo Institute of Science and Technology (Skoltech)) Russian scientists studied the trends in the evolution of amino acid sequences of proteins in vertebrates and insects. External factors can be considered as a reason for positive selection affecting genomic positions and serve as an essential aspect of the rapid evolution. But the effect of epistasis is manifested in positions under negative selection, as a result of which substitutions occur less often in them - they evolve more slowly.
Source: EurekAlert! - Biology - Category: Biology Source Type: news