Exact(6)
This study shows that reasonable assumptions for coevolution of bacteria and phage create conditions in which phage increase the evolutionary potential of their hosts.
Queens of Leptothorax are predominantly singly-mated [ 40, 46], but occasional multiple mating might introduce intra-sexual conflict and thus increase the evolutionary tempo of seminal fluid proteins.
Such multi-functionality has been suggested to constrain the trajectory and rate of phenotypic evolution [ 3], whereas innovations that increase the evolutionary flexibility within a structural system can enhance the potential for diversification [ 4– 6].
Further, using reconstructed ancestral sequences has been shown to increase the evolutionary time that can be accessed without saturation, dependent upon the tree topology and articulation, as reflected in individual branch lengths [ 52].
If such replacement of genomes, followed by novel genetic expression and epigenetic regulations, occurred many times over historical time, these events would increase the evolutionary flexibility to enable the long-term sustainability of the unisexual lineage.
In contrast, it could also be argued that competition among strains, at least in theory, has the potential to increase the evolutionary persistence of the mutualism (Ferriere et al. 2002) by imposing variation that reinforces host choice.
Similar(54)
Asymmetries in many cases are actively selected for: they might well have increased the evolutionary fitness of a species.
According to the authors, the risky behavior of bold snails may have increased the evolutionary pressure to develop better defenses, whereas for a shy snail, a stronger shell isn't as important.
Similarly, as the foreign genes carried on region B were taken up, maintained and expanded in the genome of wine yeast strains, we can infer that they must contribute in some way to increasing the evolutionary fitness of wine yeast.
Excessive use of broad-spectrum agents, such as fluoroquinolones, increases the evolutionary selective pressures that drive the increasing prevalence of resistance.
The availability of anchored whole genome sequences for amniote species has increased the evolutionary depth and confidence of ancestral reconstructions from those made solely from chromosome painting data.
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