They may all have resulted due to duplication of a segment on chromosome 4, but thereafter, evolution of these genes may have been quite independent resulting in loss of micro-collinearity between the duplicated regions.
The question as to whether the eye evolved once very early in the history of animals and diversified thereafter (monophyletic evolution) or whether an eye evolved multiple times independently in various forms as evolution progressed (polyphyletic evolution) has led to much discussion.
Upon this, the bond damage evolution curves are derived thereafter, which are found to strictly follow the lognormal distribution or Weibull distribution.
The supervolcanoes' gases would certainly have influenced the composition of the early atmosphere and the evolution of the climate thereafter.
Thereafter, the evolution of this trait is equivocal (as indicated by the black branches in Figure 2), with two equally parsimonious solutions.
It is tempting to speculate that some of the polymorphic microsatellites discovered in this study are those that have undergone mutations at some point of time during microbe evolution, perhaps during speciation, and thereafter remained frozen as the 'molecular fossils'.
The average length at maturation decreased dramatically because of fisheries-induced evolution and recovered very slowly thereafter, whereas in the nonevolving populations it not only decreased less during fishing, but also rebounded to its preharvest level within just a few years (Fig. 4F).
Nevertheless, Stalinist-type domination and exploitation did not return, and Hungary thereafter experienced a slow evolution toward some internal autonomy.
We find that these genes all arose during early eutherian evolution and have experienced substantial sequence divergence thereafter.
The model was subsequently applied to predict the texture evolution during extrusion with metadynamic recrystallization taking place thereafter.
That evolution, from its start and continuing for decades thereafter, has brought the school to its present place of global pre-eminence.
