Adaptive radiation may have promoted the rapid speciation, as well as the fixation of unique morphological characters in Leymus.
This paper reports on the damaging effects of different percentage porosities on the fatigue life of acrylic bone cement as used in the fixation of orthopaedic implants.
Care should be taken in the interpretation of the results presented as differences in the fixation process of human samples or control tissues could in part influence the results of the real time PCR analysis.
The advantages, possible downsides, and specific features of the technique are addressed in the following: The advantages of PPCCC fixation of the optic as compared to the standard in-the-bag fixation were found to be: Eradication of after-cataract formation behind the optic by diverting migrating LECs to bypass the optic rim towards the anterior optic surface.
In this context, chromosomal rearrangements would act as genetic barriers, interfering in the fixation of favorable alleles and allowing for the accumulation of genetic incompatibilities [ 8].
More specifically, we use the product of the local population size (N) and the number of populations (U) as we are interested in the fixation of the allele in the whole metapopulation.
While the fact that there is a maximum in the fixation probability as a function of the mean connectivity is intuitive, the value where the maximum appears is not trivial.
Recombination was reported to be the cause of BGC [ 29, 46] and this is supported in our study, as the fixation preference for C/G rather than A/T exists in recombination hotspots, but not in the recombination coldspots.
There are certainly other neutral processes that could explain smaller genomes in birds, such as the fixation of mechanisms that yield a biased spectrum of deletions during replication.
Therefore, it is reasonable to believe that the same bottleneck event that was detected by the three markers (intron without HEG, cox2-3 and rbcL-S regions) probably had as a consequence the fixation in the population of the full length HEG (functional).
