Since third position substitutions are generally the most weakly selected, variation at these positions may be more indicative of demographic factors such as the number of hosts or time since initial infection.
In each of these two families, the co-occurrence of transmembrane helices or C2/C2 (BZF finger) domains with a selected variation on the RING finger has been subjected to strong selection pressure in order to preserve their unique domain architectures during evolution.
Although some of these SNPs themselves might be directly under divergent selection, they are more likely to be differentiated because they are in linkage disequilibrium (LD) to divergently selected variation in the closest gene or even in genes further away on the same chromosome.
Two selected variations in the hESC lines, the deletions of the GRB10 gene in HS293 and the MLLT1 gene in HS401, were verified by designing PCR amplicons within the deleted segments.
Where the exchange of goods and services were concerned, it seems that the writers had a tendency to select "variation in the expression of a given meaning" (Halliday 1994: 342) as a politeness strategy in order to ask the recipient to perform an action.
However, further investigation is necessary to explain the advantages conferred by the selected allelic variations in OsAMT1 1 during domestication.
Then, in a second experiment we compare among the selected operators, the variation operators used in the NSGA-II algorithm and the ones presented by the authors, PBCO and RBMO.
Of the selected markers, most variation was detected in the control region (D-loop) sequences, viz.
In an attempt to validate our hypothesis that pairs of genes showing excess genetic divergence represent potential functional interactions, we selected a small set of gene combinations postulated to be interacting based on our analyses and looked for a combined effect of the selected genes on variation in complex traits in both mice and man.
If the candidate genes in this study are associated with cancer risk in the selected breeds, the variation in allele frequencies indicates that the associated genes/alleles differ between breeds.
