These data indicate that little natural mutation and modification in the TAC1 coding region occurred within the cultivated rice and its progenitor during evolution.
This is important because it provides useful constraints for models which try to explain how the nebula and the ring were generated in the final stages of the progenitor star evolution and, therefore, useful clues on the final stages of the progenitor star's life.
Its cross-sectional nature does not allow to draw definite conclusions on progenitor cell evolution at the single-patient level.
Interestingly, when the simulation was performed with a rate of progenitor sequence evolution that equaled that of the descendants, the resulting tree was found to have a significantly increased mean bootstrap support.
The remaining 13 clades contained two or more paralogous human genes, that is, genes that have amplified up from a common progenitor during vertebrate evolution (Fig. 2, 3).
It has been hypothesized that during evolution, progenitor enzymes of low activity and broad specificity diverge into families of more potent and highly specialized enzymes (Jensen, 1976; Khersonsky and Tawfik, 2010).
Nevertheless, the identical position of an intron in MA3 domains 1 and 3 of C. reinhardtii and V. carteri PDCD4 supports the notion that the four MA3 domain form of their protein arose through duplication of a two MA3 domain PDCD4 progenitor during their evolution.
That trait is not present either in the crop or in its progenitors; thus, its evolution is not a case of de-domestication.
As IPCs are an acquired progenitor group during cortical evolution, it suggests that the expansion of the cortex has been more homogeneous among all layers than previously thought (Tarabykin et al. 2001).
