To delineate the extent to which HGT contributes to PVC genome dynamics, we traced the number of transfer events between different organisms for every gene family within the data set (table 1, supplementary table S3 and fig. S12, Supplementary Material online).
Most of life sciences outside evolutionary biology, inclusive of phylogenetics and systematics, deal with a narrow selection of model organisms only, thus a paper in these disciplines will not often extend to comparisons between different organisms, one of which the author would be tempted to regard as lower or higher than others.
We speculate that this may imply differences in the signal responsiveness of different RsbN proteins, thereby contributing to the differences between different organisms in the interplay of ecology and development: in other words, they may be potential agents of speciation.
Indeed, the molecular mechanisms that control the events of meiosis are highly conserved between different organisms, underscoring the importance of meiotic regulation (Gerton and Hawley 2005).
We conclude that the AI of proteins shared between different organisms represents a reasonable measure of evolutionary relatedness, if sufficiently large data sets are used.
Thus, the only common factor of buffering by duplicates between different organisms may be the by-product of duplicate retention due to demands of high dosage.
Horizontal gene transfer (HGT), the non-genealogical transfer of genetic material between different organisms, is considered a potentially important mechanism of genome evolution in eukaryotes.
This analysis allows us to evaluate the relative enrichment of known CM domain families between different organisms and to estimate the promiscuity of CM domains, or the degree to which they tend to co-occur with different domains across proteins in a genome.
Their metabolic functions vary between different organisms, between different tissue types of the same organism and even between different developmental stages or in response to changed environmental conditions.
For instance, experiments determining the degree of similarity between different organisms' DNA and RNA have provided new insights for the classification of microorganisms.
