This is associated with preserved selection pressure at specific viral amino acids (e.g., the T242N polymorphism within the HLA-B*57/5801 restricted TW10 epitope), but with reversion at other sites (e.g., the T186S polymorphism within the HLA-B*8101 HLA-B*8101 TL9 epitope), most notably in Gag and suggestive of "immune restricted".
Switch to the photo layer, preserving the selection.
What is notable, then, is that nearly all boundaries in Cryptococcus – relatively weakly and relatively strongly selected – are preserved by selection.
This layer of regulatory control over transcriptional networks is preserved by selection across deep evolutionary time, yet selection pressures on individual miRNA genes in contemporary populations remain poorly characterized in any organism.
Thus, drug-treatment appears to preserve positive selection pressure for fitness mutations that are found in the untreated dataset, merely adding new positive selection effects for drug-resistance.
The elastic-net method preserves SNP selection, while allowing more than N of P SNPs to be selected.
The prevailing hypothesis for the phenomenon is dosage balance; in regulatory networks and protein complexes the stoichiometric balance between different components needs to be preserved; thus, selection acts against losses following WGMs and against duplications in SSDs4.
As noted in the last section, whether a particular variation is advantageous or harmful is, in once sense of that term, a matter of chance; and whether an advantageous variation is actually preserved by selection is, in another sense of the term, also a matter of chance.
When increasing the order of the correlations to be preserved, the selection of the rewired nodes is more restrictive.
Still, in all cases, the palindromic features of REPs are preserved, suggesting selection for complementary mutations.
