Because we do not know the genome partner that contributed Brujita gene 65 we cannot rule out that recombination occurred between longer segments of homology by general recombination enzymes; however, the Brujita structure is consistent with illegitimate or non-sequence directed exchanges that occurred close to the gene boundaries, maintaining gene functions.
The existence of these indels that do not distort the reading frame is in itself strong evidence for maintained gene function.
Each of the comparisons for endogenous fungal genes revealed a significant departure from neutrality in the direction of purifying selection, consistent with purifying selection to maintain gene function (Table 1; Figure 5).
In coding DNA, mitochondria with inaccurately repaired essential genes may be eliminated from the cell, or not inherited, thus what we observe in coding DNA is repair that maintains gene function, explaining the low synonymous substitution and indel rate.
The assumption of a single selective coefficient for the frog tree (null model) rendered ω values well below 1 for all different mt and nuclear genes (0.005-0.16 0.005-0.16, indicaTablethe action of purifying selection to maintain gene function [ 14].
PEP-regulated genes often encode proteins involved in photosynthesis, whereas many NEP-regulated genes maintain gene expression functions.
We then sought to test the hypothesis that ancestral-like gene-copies within ohnolog pairs are more likely to maintain ancestral gene function and therefore exhibit lower rates of sequence evolution.
The role of purifying selection, necessary for maintaining mitochondrial gene functions, has been clarified in many papers based on in silico analysis, and also by in vivo experiments.
These modifications in H3.3 and H4 from the fat of female subjects are in line with identification of H2AFY and the protein "similar to H2AFY2", the variant histones that most probably function to maintain gene silencing and inactive X chromosome in female mammalian cells [69].
We also found H2AFY, which is a macroH2A1 enriched on the inactive X chromosome in female mammalian cells, where it functions to maintain gene silencing [69].
