Although our data does not allow for divergence time estimates between Oreina speciosissima ecotypes, it seems likely that they diverged relatively recently.
And how are these mechanisms exploited over evolutionary time to allow for divergence and to give rise to new functions and ultimately species?
In general, then, the symmetric analysis of similarity, combined with the de facto asymmetry of overdetermination, implies that worlds that accommodate counterfactual changes by preserving the actual past and allowing for divergence miracles are more similar to the actual world than worlds that accommodate such changes by allowing for convergence miracles that preserve the actual future.
The duplication of such a gene allows for divergence of one partner resulting in functional diversification and asymmetrical gain and/or loss of interactions in the complex.
Node ages were calculated using either hard constrains, which do not allow calibrated nodes to fall outside the calibration dates or soft bounds, which allows for divergence times outside the calibration interval [ 37].
If the function of this region is to serve as a tether, then the sequence identity of those particular amino acids may be flexible, allowing for divergence of this portion of the protein.
In any of these cases, fixation could have increased over time, given the 3 km separating these populations, allowing for divergence through local effects of genetic drift and mutation at neutral loci.
To evaluate different evolutionary scenarios we specifically test two alternative models, one of which allows for divergence in the presence of gene flow [ 23] while the other encompasses a secondary admixture scenario by permitting divergence in isolation and subsequent resumption of genetic exchange or admixture between the two populations [ 18].
"Because of the contours of an eye," says Biss, "it has to be lit completely differently to a hairy leg or an antenna", which means the sections have to be carefully sewn together, allowing for divergences in colour and perspective.
On Sunday, Mr Cardozo tried to calm the protesters by saying that the rallies "confirm that Brazil is a democratic state that allows for divergences… we're far from any coup option".
