A vicariant event during the Middle Pleistocene (0.82-2.27 Mya) triggering divergence between the L2-L3 lineand and the remaining populations of Lacerta lepida seems probable.
However, in other, less-well documented cases the hypothesis that adaptations in the pharyngeal jaw apparatus triggered divergence remains valid, but would need to be further investigated.
It has been shown that such environmental gradients can trigger genetic divergence into two discrete states in models of sympatric divergence [ 5].
For example, the 3D images with uncrossed disparity that are perceived to be located behind the screen may trigger fusional divergence rather than fusional convergence.
Although surprising in view of some of the previous inferences, this putative topology of the eukaryotic tree appears biologically plausible in that the acquisition of the cyanobacterial endosymbiont would trigger the divergence of the ancestors of Plantae from the common ancestor with the rest of the eukaryotes.
Alternatively, speciation might have been initially triggered by divergence in colour pattern with mimetic convergence a derived state acquired subsequent to speciation in the Florencia region.
The isolation of spring-dwelling highland taxa in uplifting regions of Southwest China and the more arid climate could have triggered the divergence of the proto-Triculinae, with the invasion of larger rivers and streams.
Bacterial speciation is often triggered by adaptive divergence [ 2, 3], while homologous recombination, which leads to gene flow cohering diverging populations, simultaneously occurs, a model approximating parapatric or sympatric speciation [ 4, 5].
Strong winds in the jet stream can trigger a process called divergence; diverging winds in the upper atmosphere cause air to rapidly rise from the surface, leaving behind an area of low pressure.
First, ETA templates are defined with ET, which identifies and ranks residue variations that trigger major evolutionary divergences.
This result is compatible with the scenario where the acquisition of the cyanobacterial symbiont (the future chloroplast) by an ancestor of Plantae triggered the first divergence of major clades in the evolution of eukaryotes.
