Sentences with phrase «adaptive evolution»

These findings, especially the remarkably young age of the positively selected variant, suggest that the human brain is still undergoing rapid adaptive evolution.

Our results demonstrate that there are overall patterns of selection on ejaculates across a biologically realistic range of ejaculate - ejaculate and ejaculate - female interactions; therefore, there is the potential for adaptive evolution of ejaculate traits under sperm competition.

As a consequence, the importance of adaptive evolution in plant and animal populations may have been underestimated thus far, especially when it comes to adaptations in response to rapid, anthropogenic, environmental change.

Importantly, this study provides evidence that there are overall patterns of sexual selection on multiple ejaculate traits, and therefore the potential for adaptive evolution under sperm competition.

Rancanti et al. found that aneuploidy facilitated adaptive evolution in yeast cells lacking the conserved motor protein Myo1 involved in cytokinesis [12].

Examples of contemporary adaptive evolution remain extremely rare.

Localizing recent adaptive evolution in the human genome Williamson, S. H., M. J. Hubisz, A. G. Clark, B. A. Payseur et al. 2007.

Given the finding that aneuploidy can underlie and drive adaptive evolution in S. cerevisiae, C. albicans, C. neoformans, and Leishmania, it seems likely that beneficial impacts of aneuploidy may be even more ubiquitous and remain to be discovered in other saprobic and pathogenic eukaryotic microbes.

«These data support the emerging view in evolutionary biology that mechanisms underlying adaptive evolution are often highly repeatable and thus may be predictable,» said Marques.

Pervasive adaptive evolution in mammalian fertilization proteins Swanson, W. J., R. Nielsen, and Q. Yang.

Epigenetically - effected hypothalamic GnRH secretion is central to my model of nutrient - dependent pheromone - controlled adaptive evolution, which was presented as «Olfactory - genetic - neuronal - hormonal reciprocity in learning, memory, behavior and in immune function» during a 1995 Anti-Aging medicine conference.

Accuracy and power of statistical methods for detecting adaptive evolution in protein coding sequences and for identifying positively selected sites Wong, W. S. W., Z. Yang, N. Goldman, and R. Nielsen.

By consistently generating specific environmental states, niche construction co-directs adaptive evolution by imposing a statistical bias on selection.»

In particular, tracing the ultimate origin of leprosy through the parasitic adaptive evolution of the leprosy bacteria is rather insightful, not only for this single disease but also for our better understanding of the mechanism behind other human infections.

«These processes generate diverse H. pylori subpopulations, in which BabA's adaptive evolution contributes to the pathogen's persistence and ability to cause severe gastric disease,» says Thomas Borén.

This is the first example of adaptive evolution triggered by interspecies introgression in domesticated animals, which gave us a clue that introgression event between divergent species may be an important resource for evolutionary adaptation and could largely facilitate this process.

«Instead, adaptive evolution pushed the voles to become smaller and lighter.»

An international scientific team led by University of Montana Professor L. Scott Mills has set out to discover whether adaptive evolution can rescue these animals in the face of rapidly changing climate.

The floral diversity and repeated shifts in pollination have inspired a series of scientists to study adaptive evolution in the genus.

I suspect that most evolutionary theorists would rather not have adaptive evolution exemplified in the context of nutrient dependence and pheromone control (as in the honeybee model organism) because bottom - up nutrient dependence and top - down control of reproduction by pheromones tends to eliminate the concept of randomness from theory and brings the focus back to neuroscientifically established facts.

A Resurrection Study Reveals Rapid Adaptive Evolution Within Populations of an Invasive Plant.

Comeron and Kreitman [16] proposed that a low recombination rate indirectly selects for larger introns, which reduce Hill - Robertson interference between adjacent exons and thus facilitate adaptive evolution.

Localizing recent adaptive evolution in the human genome.

I am therefore interested in broad questions regarding the genetic mechanisms underlying adaptive evolution (mutation and recombination) and in understanding how genomic and phenotypic complexity can affect adaptation.

Reproductive selection and sexual competition are systems that undergo adaptive evolution in many organisms, including throughout primate evolution, and signals of selection were found in all three populations, according to Pritchard.

Pervasive adaptive evolution in mammalian fertilization proteins.

Accuracy and power of statistical methods for detecting adaptive evolution in protein coding sequences and for identifying positively selected sites.

The study, led by Simone Immler (Uppsala University / SciLifeLab) and in collaboration with East Anglia University, UK, may be of great importance for adaptive evolution and research on assisted reproductive technology, such as IVF.

Adaptive evolution of cytochrome c oxidase: infrastructure for a carnivorous plant radiation.

My main research motivation is to contribute to the understanding of the process of adaptive evolution in multicellular, sexual organisms.

Likewise the beaks of Charles Darwin's Galapagos finches — to give perhaps the most famous example of adaptive evolution — possess a variety of shapes and sizes tailor - made to feeding upon an assortment of seeds native to their particular habitats.

This suggests that selective pressures have partly driven the adaptive evolution of this protein family.

The study, which combined genetic analysis with a 19 - year - long selection experiment, supports the idea that the mechanisms of adaptive evolution may be more predictable than previously suspected.

Our study provides unique genome - wide perspectives on the adaptive evolution of venom systems as well as protein evolution in general.

«Although a central role for DNA methylation in development and disease has been well - documented, our results suggest that epigenetic processes can play an equally important role in adaptive evolution,» the team writes.

To shed light on how co-infection may affect evolution, Sentandreu sequences parts of the genome of both viruses and analyses genetic variability and adaptive evolution in co-infected patients.

His coauthor is Chris Hittinger, and the article is called the «Gene Duplication and the Adaptive Evolution of a Classic Genetic Switch».

Objecting on both philosophical and empirical grounds, Fodor and Piattelli - Palmarini reject natural selection as the mechanism of adaptive evolution.

The concepts of contingency and entrenchment were well known to be present in adaptive evolution, but it came as a surprise to the researchers to find them under purifying selection.

«In addition, many of the high - frequency sequences span genes involved in the immune system, which is a frequent target of adaptive evolution.»

As the genetic basis of those adaptive evolution remained largely unexplored, scientists of this article conducted whole - genome sequencing and selective sweep analysis trying to figure out the genetic basis contributed to the adaptation of domesticated Chinese pig breeds, especially related to thermostatic regulation for varying - latitude environments.

Adaptive evolution, i.e. genetic change via natural selection, plays a central role in how plant and animal populations guarantee their long - term survival.

«We propose that the environmental influences that lead to increased genomic dynamics even in successive, untreated generations may increase the potential for adaptive evolution.»