Because the Defense Department's security mission is considered critical, it is under different constraints than a global business that might be able to cut operations to save money.
We discovered that the tempo and mode of CNS evolution differed from order to order among mammals and that recent and more ancestral CNSs are under different constraints.
The amplification of a whole gene is under different constraints from amplification of a domain because during amplification of a domain like the zinc finger domain of pclob, there is continued selection for function of each domain.
The transferred regions contain plastid sequence with intergenic DNA, as well as synonymous and nonsynonymous sites, which are under different constraints in the plastid relative to the mitochondrial genome, further complicating fragment-wide divergence time estimates.
Therefore, it is plausible that URA4 could be under different selective constraints in this strain than in other strains.
These results suggest that N- and C-terminal regions of avian TLR2 genes may be under different selective constraints.
Female and male pheromones appear to have different origins and to be under different evolutionary constraints, thus they might be envisioned as independently evolving traits.
Even though a separation of the data according to a single score may be crude, our results show that it allows us to distinguish between two sets of tRNAs that seem to be under different selective constraints.
Long non-coding RNAs play diverse roles in biological processes but are thought to be under different evolutionary constraints and are expected to have low sequence conservation compared to protein-coding sequences [ 38], which has hampered the study of long non-coding RNA in vertebrates.
The presence of KLHL9, which appears to be under different evolutionary constraints than IFNW and IFNA, close to IFNA/IFNW cluster 2 suggested the cluster as whole might be under different evolutionary control than cluster 1 or 3. Evolutionary divergence rates do not indicate that this is the case, however (Table 3).
