Results 41 to 50 of about 143,746 (232)

The dynamics of alternative pathways to compensatory substitution [PDF]

, 2013
The role of epistatic interactions among loci is a central question in evolutionary biology and is increasingly relevant in the genomic age. While the population genetics of compensatory substitution have received considerable attention, most studies ...
Nasrallah, Chris A.
core   +2 more sources

Haplotypic polymorphisms and forensic applications in Chinese Hunan Han population based on a series of Y-STR loci: a perspective of paternal inheritance

Annals of Human Biology, 2023
Background Hunan, a multinational province in China, possesses more than fifty ethnic groups, such as the Han, Yao, Tujia, Miao, and so on. Aims To evaluate the forensic efficiency of the novel panel and investigate the genetic relationships between ...
Ming Zhao, Wei Cui, Yunying Zhang, Qiong Lan, Bofeng Zhu   +4 more
doaj   +1 more source

Population Growth Combined with Wide Offspring Distributions can Increase Fixation Rate and Reduce Genetic Diversity

Bulletin of Mathematical Biology, 2016
Genetic diversity grows with the population size in most neutral evolution models. Empirical evidence of large populations with limited diversity has been proposed to be due either to genetic bottlenecks or to selection. An alternative explanation is that the limited diversity is a result of rare reproduction events.
Alter, I., Louzoun, Y.
openaire   +4 more sources

Technologically modified genes in natural populations [PDF]

, 1993
Current theories of evolutionary and ecological genetics cannot be used for general statements on risk assessment of gene technology. In a simplifying model, the genes which are transferred from artificial populations are treated like mutations in the ...
Gabriel, Wilfried, Wöhrmann, Klaus
core   +1 more source

Structural and Temporal Variation in Genetic Diversity of European Spring Two-Row Barley Cultivars and Association Mapping of Quantitative Traits

The Plant Genome, 2013
Two hundred sixteen barley ( L.) cultivars were selected to represent the diversity and history of European spring two-row barley breeding and to search for alleles controlling agronomic traits by association genetics.
Alessandro Tondelli, Xin Xu, Marc Moragues, Rajiv Sharma, Florian Schnaithmann, Christina Ingvardsen, Outi Manninen, Jordi Comadran, Joanne Russell, Robbie Waugh, Alan H. Schulman, Klaus Pillen, Søren K. Rasmussen, Benjamin Kilian, Luigi Cattivelli, William T. B. Thomas, Andrew J. Flavell   +16 more
doaj   +1 more source

Fluctuating selection models and Mcdonald-Kreitman type analyses [PDF]

, 2013
It is likely that the strength of selection acting upon a mutation varies through time due to changes in the environment. However, most population genetic theory assumes that the strength of selection remains constant.
A Eyre-Walker, A Schneider, Adam Eyre-Walker, AR Boyko, C Sequencing, D Waxman, David Waxman, E Huerta-Sanchez, G Bell, J Charlesworth, J Gillespie, JC Fay, JH McDonald, JL Strasburg, L Jensen, L Zhang, LD Mueller, Lilach Hadany, M Kimura, M Lynch, N Bierne, N Takahata, NGC Smith, R Fisher, RB O'Hara, S Karlin, T Slotte, TI Gossmann, Toni I. Gossmann   +28 more
core   +4 more sources

Fixation of genetic variation and optimization of gene expression: The speed of evolution in isolated lizard populations undergoing Reverse Island Syndrome

PLOS ONE, 2019
The ecological theory of island biogeography suggests that mainland populations should be more genetically divergent from those on large and distant islands rather than from those on small and close islets. Some island populations do not evolve in a linear way, but the process of divergence occurs more rapidly because they undergo a series of ...
Buglione M., Petrelli S., Maselli V., Trapanese M., Salvemini M., Aceto S., Di Cosmo A., Fulgione D.   +7 more
openaire   +6 more sources

Genetic draft, selective interference, and population genetics of rapid adaptation [PDF]

, 2013
To learn about the past from a sample of genomic sequences, one needs to understand how evolutionary processes shape genetic diversity. Most population genetic inference is based on frameworks assuming adaptive evolution is rare.
Neher, Richard A.
core   +1 more source

Hitchhiking to speciation. [PDF]

PLoS Biology, 2013
The modern evolutionary synthesis codified the idea that species exist as distinct entities because intrinsic reproductive barriers prevent them from merging together. Understanding the origin of species therefore requires understanding the evolution and
Daven C Presgraves
doaj   +1 more source

Robust forward simulations of recurrent hitchhiking [PDF]

, 2014
Evolutionary forces shape patterns of genetic diversity within populations and contribute to phenotypic variation. In particular, recurrent positive selection has attracted significant interest in both theoretical and empirical studies.
Hernandez, Ryan D., Uricchio, Lawrence H.   +1 more
core   +2 more sources