Sentence examples for lack of selective pressure from inspiring English sources

On the other hand, the same test employed for neutral selection provided no evidence for a lack of selective pressure operating on any members of the IFNB subfamily (p = 0.343), indicating the six genes comprising the bovine IFNB subfamily may be too few for a meaningful analysis.

While the first half gives a lower Ka/Ks of 0.4, the second half gave a Ka/Ks of approximately unity; this is usually taken to indicate a lack of selective pressure or a mosaic of positive and negative selection.

Probably not, Dawkins said, considering the lack of selective pressure: "Quite the contrary".

This decline is thought to reflect the lack of selective pressure to maintain tissues beyond an age when the animal would be likely to contribute genetically to future generations (Kirkwood 2005; Medawar 1952; Williams 1957).

Gene fragmentation and degradation suggests a lack of selective pressure to maintain coding capacity, but full length transcripts and proteins are not always required for biological function.

Therefore, the higher SNP frequency in certain regions is likely the results of lack of selective pressure for that region, and is not a requirement for a particular interaction.

Lack of selective pressures in host colonisation would lead to colonisation by a wide range of incompatible strains.

However, they would have the risk of instability due to lacking of selective pressure.

Previous studies in cultured cell lines have demonstrated that expression of stably transfected genes lacking barrier elements is gradually extinguished in the absence of selective pressure, as heterochromatin propagates into the transgene [30].

Lineages that lack entire tethering complexes likely lost these factors as a result of selective pressure.

Despite the apparent lack of stability or persistence genes, pCT has remained stable in a population in the absence of selective pressure for prolonged periods (N.G. Coldham et al., unpub. data).