We discuss a scenario in which the evolution of elongated genitalia was facilitated by the lack of structural constraints and existing preadaptations.
We seek to untangle the various biogeographic scenarios resulting in the evolution of the Arabian bufonids and their close relatives.
In this scenario, the evolution of the codons in c ⃗ is independent between positions.
Despite considerable progress in systematics, a comprehensive scenario of the evolution of phenotypic characters in the mega-diverse Holometabola based on a solid phylogenetic hypothesis was still missing.
From the four inferred glacial refugia, other areas of the current distribution range would have been subsequently colonized during the Holocene, as depicted in a schematic scenario of the evolution of the desman populations.
On the contrary, the observed patterns can be explained in a surprisingly coherent manner by a post-Columbus introduction and expansion, as exposed thereafter in the section 'Possible Scenario for the Evolution of the CD Genome'.
The current scenario for the evolution of translation in the RNA World faces formidable difficulties because, although the ribozyme catalysis of the elementary reactions required for translation has been demonstrated experimentally (Table 1), the required complex RNA-mediated functions have not.
In summary, from the analysis of this set of genomes we can conclude that the most probable scenario for the evolution of pathogenicity in Campylobacter is the accumulation of virulence factors that resulted in established pathogens, instead of an opposite scenario of pathogenicity attenuation by gene loss from a virulent ancestor.
Yet another scenario for the evolution of ECM in Agaricomycotina was proposed by Weiss and colleagues [ 7, 11], who suggested that the ancestor of all the Agaricomycetes might have been an ECM species, with many later reversals to the free-living condition.
hypothesis, therefore, offers an explanation for the emergence of protein synthesis and helps us envision a plausible scenario for the evolution of early stages in the genetic code; its implications for the origin of life are significant.
