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Learning mitigates genetic drift [PDF]

open access: yesScientific Reports, 2022
Genetic drift is a basic evolutionary principle describing random changes in allelic frequencies, with far-reaching consequences in various topics ranging from species conservation efforts to speciation.
Peter Lenart   +2 more
doaj   +8 more sources

Genetic drift of HIV populations in culture. [PDF]

open access: yesPLoS Genetics, 2009
Populations of Human Immunodeficiency Virus type 1 (HIV-1) undergo a surprisingly large amount of genetic drift in infected patients despite very large population sizes, which are predicted to be mostly deterministic. Several models have been proposed to
Yegor Voronin   +3 more
doaj   +5 more sources

Genetic drift in genetic algorithm selection schemes [PDF]

open access: yesIEEE Transactions on Evolutionary Computation, 1999
A method for calculating genetic drift in terms of changing population fitness variance is presented. The method allows for an easy comparison of different selection schemes and exact analytical results are derived for traditional generational selection, steady-state selection with varying generation gap, a simple model of Eshelman's CHC algorithm ...
Rogers, A., Prügel-Bennett, A.
exaly   +4 more sources

Genetic drift in mammals [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2019
: Genetic drift is the fortuitous occurrence of genetic events that when they become fixed modify the genome of populations. They can take the form of mutations of single nucleotides (SNPs), the insertion or deletion of short sequences (Indels) or the ...
JEAN-FRANÇOIS BACH
doaj   +4 more sources

Genie: an interactive real-time simulation for teaching genetic drift [PDF]

open access: yesEvolution: Education and Outreach, 2022
Neutral evolution is a fundamental concept in evolutionary biology but teaching this and other non-adaptive concepts is especially challenging. Here we present Genie, a browser-based educational tool that demonstrates population-genetic concepts such as ...
Andreina I. Castillo   +4 more
doaj   +2 more sources

Within-plant genetic drift to control virus adaptation to host resistance genes. [PDF]

open access: yesPLoS Pathogens
Manipulating evolutionary forces imposed by hosts on pathogens like genetic drift and selection could avoid the emergence of virulent pathogens. For instance, increasing genetic drift could decrease the risk of pathogen adaptation through the random ...
Lucie Tamisier   +8 more
doaj   +2 more sources

Lineage frequency time series reveal elevated levels of genetic drift in SARS-CoV-2 transmission in England. [PDF]

open access: yesPLoS Pathogens
Genetic drift in infectious disease transmission results from randomness of transmission and host recovery or death. The strength of genetic drift for SARS-CoV-2 transmission is expected to be high due to high levels of superspreading, and this is ...
QinQin Yu   +6 more
doaj   +2 more sources

Do Genetic Drift and Gene Flow Affect the Geographic Distribution of Female Plants in Gynodioecious Lobelia siphilitica? [PDF]

open access: yesPlants, 2022
Variation in population sex ratio is particularly pronounced in gynodioecious angiosperms. Extremely high female frequencies in gynodioecious populations cannot be readily explained by selective forces alone. To assess the contributions of drift and gene
Hannah J. Appiah-Madson   +3 more
doaj   +2 more sources

Effects of multiple sources of genetic drift on pathogen variation within hosts. [PDF]

open access: yesPLoS Biology, 2018
Changes in pathogen genetic variation within hosts alter the severity and spread of infectious diseases, with important implications for clinical disease and public health.
David A Kennedy, Greg Dwyer
doaj   +3 more sources

GENETIC DRIFT IN A CLINE [PDF]

open access: yesGenetics, 1975
ABSTRACT A model is developed of genetic drift in a cline maintained by spatially varying natural selection and local dispersal of individuals. The model is analyzed by an approximation scheme which is valid for weak selection and small migration rates.
M, Slatkin, T, Maruyama
openaire   +2 more sources

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