Sentence examples for be under selective constraints from inspiring English sources
Although nonsynonymous sites and RNAs are well known to be under selective constraints, the present study reveals selection on the D-loop region of mitochondrial genomes.
The results indicated that the putative HH motif in the pDo500 satDNA is likely to be under selective constraints and may be functional in Dolichopoda.
As the analysed transferrin locus is reported to be under selective constraints in salmonids [ 55], it was excluded in the estimation of the overall nucleotide diversity.
Based on such correlations, genome size was hypothesized to be under selective constraints (Gregory 2002); however, comparative studies in bacteria have failed to support such adaptive view as a general explanation.
M-type mtDNA evolves faster, but we do not think that this is because of a relaxed selection: M-type has to perform in very important contexts, such as gametogenesis and fertilization, so it has to be under selective constraints.
Although population fixation of mtDNA variants has traditionally been attributed to genetic drift, it has been repeatedly shown that certain common human mtDNA genetic variants possess functional attributes and are, therefore, likely to be under selective constraints (Wallace 2005).
If the dN/dS rate ratio is <1, there is evidence for purifying (negative) selection, and the duplicated genes are thought to be under selective constraint.
The concept that some large fraction of some introns may be under selective constraint for a specific function does not negate the possibility that neutral segments of the same intron may be under selection for transcriptional efficiency.
