Sentence examples for been under natural selection from inspiring English sources

"By identifying genes with mutations that are very common in Tibetans, but very rare in lowland populations we can identify genes that have been under natural selection in the Tibetan population," said Professor Rasmus Nielsen of the University of California Berkeley, who took part in the study.

For splice variants using alternative reading frames, our method may be used to test if the alternative reading frame has been under natural selection, which would support the functionality of the splice variant.

The advantage of SpO2 is that it can be measured simply, inexpensively and non-invasively by pulse oximetry (Schult and Canelo-Aybar, 2011), and evidence for a major gene among Tibetans that increases oxygen saturation (Beall et al., 1994, 1997) demonstrates that SpO2 is sufficiently important to have been under natural selection in this native high altitude population.

In D. buzzatii, body size related traits (such as wing length), known to be under natural selection [ 36- 38], are affected by the nature of the breeding substrate [ 21, 39- 41].

We evaluated whether human genome sequences of the Japanese population derived from archaic hominins, such as Neanderthal or Denisovan, were under natural selection pressure.

Using this technology, Gilad and colleagues demonstrate that most genes are under natural selection to maintain a constant level of expression, but that a few genes show evidence of species-specific changes.

In the present study, six different statistical methods consisting of four independent codon-based maximum likelihood (CML) methods, one hierarchical Bayesian (HB) method and one branch-site (BS) method, were employed to determine if each amino acid site of A/H7N9 virus is under natural selection pressure.

Specifically, the property changes that TreeSAAP detected in step 1 of the analysis were correlated with the same properties TreeSAAP detected to be under natural selection throughout mammalian evolution.

Most probably, these cells constitute a suppressor strain where a second mutation occurred restoring the original phenotype, by reverting the effect of CCTαG346E mutation, and are under natural selection when growth occur over long periods.

Both of these observations are evidence that these pairs are under natural selection and tend to be functionally important.

In the course of colonization, bacteria may be under natural selection to adapt to their new environments.