Thus it could be easily imagined that both sides of the conserved phase 1 intron insertion site could be confronted by the high evolutional conservative pressure or strict parallel evolution to be adaptable for binding to the partner proteins.
Our results in this research suggest that E. gracilis had very particular photosynthetic characteristics, the strict O2 evolution suppression in the initial culture phase might be a special light acclimation behavior, and CEF-PSI could be an important mechanism involved in this kind of adaptation to the changeable light environment.
Stukenbrock and Rosendahl [ 13] found strong linkage among three loci in three Glomus species, suggesting a strict clonal evolution.
In contrast, two studies suggested a strict clonal evolution in populations through analysis of multiple polymorphic loci from spores of field populations [ 12, 13].
To compare the different clock treatments, we monitored the "CoefficientOfVariation" for each partition in the relaxed clock analyses, and discarded a strict clock evolution if the distribution did not bump up against zero.
However, several cases have been reported in which sequence divergence levels between ribosomal genes or spacers seem to be much higher than would be expected under a strict concerted evolution scenario [ 5].
Although the perpetual nature of the symbiosis and the loss of cyanobiont autonomy suggests a long-lasting strict co-evolution between the cyanobiont and its host, potentially extending over 140 million years, we argue, based on the genomic features shown here, that NoAz is in the early stage of genome erosion.
The solid point is that women's sexuality is still bound up in strict ideas about evolution.
Relaxed clock methods allow substitution rates to vary over the tree and thus do not rely on strict clock-like evolution of the sequences under consideration.
New hantaviruses have been discovered in shrews, moles and bats and increasing evidence points at host-switching events and co-circulation in multiple, sympatric reservoir species, challenging the strict rodent virus co-evolution theory.
