Sentence examples for be constrained by selection from inspiring English sources

Even though the PRP8 homing endonucleases appear to be constrained by selection, they are nevertheless quite diverse.

In such a case, the M allele is expected to be constrained by selection against a recombination between the two sex-determining loci, since recombination may bring either total sterility, or reversion to the ancestral hermaphrodite state.

In this latter case, distributions of allelic richness may be constrained by selection against frame-shifting mutations or excessive length of repeated amino acid elements [ 18] and such markers may be of minimal use, and potentially misleading, for studies requiring the assumption of selective neutrality.

The development constraint hypothesis is predicated on the notion that development is coordinated by hierarchical genetic networks [ 15, 16, 46] and therefore features of early development are more likely to be constrained by selection against the deleterious pleiotropic effects of mutations [ 3, 5, 17].

In conclusion, dS/dN analysis of the PRP8 HEGs suggests that they are constrained by selection.

Because the association is required by both the insect host and the bacterial symbionts, genomic decay is constrained by selection for function.

Ignoring duplications by selecting only one ortholog from each of four compared eukaryotic species to estimate evolutionary rates, these RNAi data provided evidence that sequence evolution of indispensable proteins is constrained by selection (Luz and Vingron 2006).

This results in a relatively narrow, linear region (e.g., Swenson 2004; Carling and Zuckerberg 2011) that is constrained by selection and immigration (Key 2011; Barton and Hewitt 1993, 1985; Barton and Gale 1993; Arnold 1997).

For details of PCR profile please see methods section The low level of SNP within SPSII suggests that variation in its sequence is constrained by selection against changes in its physiological activity.

On the other hand, if a property is constrained by selection to remain above a certain threshold, then during neutral genetic drift its values should display a truncated distribution since selection culls proteins with values that fall below the threshold (such a distribution has been predicted for protein stability by simulations [ 34] and theory [ 25]).

This pattern suggests that evolution of male tail length may be constrained by ecological selection if tail length impacts survival in some way.