Interestingly, 245 out of 292 (about 85%) of differentially expressed probe sets at 8 h maintained differential expression at 24 h.
Genes that are differentially maintained in bacterial subpopulations are likely to reveal differential selective pressures acting on these subpopulations [ 20].
The active vertical walls of these cavities are vertical, maintained isothermal and differentially heated, while the closing channel is adiabatic.
While frequencies of antigen-specific cells in the lungs during acute responses were not significantly impacted by these differences in viral loads, whether frequencies of B8R20 27 specific T cells are differentially maintained in memory is still unknown.
Finally, different morphotypes of Aβ aggregates were detected and differentially maintained upon inoculation into recipient animals [ 37].
To identify putative differentially maintained genes we searched for genes that were either clade A or clade B enriched (see Methods section and Figure 2).
In summary, the β paralog HoxA and HoxD gene clusters are more dynamic with respect to gene retention, NS and S substitutions, and may be differentially maintained by natural selection.
It is known that once populations have become genetically differentiated, their divergence status can be maintained if they have differentially adapted to regional ecological conditions, since geographic variation in selection can act as a strong barrier to gene flow [ 26, 47].
Within region 1, where longitudinal expansion rate is maintained during stress, all differentially expressed transcripts were considered to be part of the mechanism of adaptation to stress.
The evolution of floral shape, from funnel-shaped corolla with expanded lobes in Codonanthopsis and Codonanthe clades to narrow-mouth and pouched corollas in most Nematanthus species could have been differentially constrained and maintained by functional groups of pollinators in agreement with the pollination syndrome concept [ 46].
