Results 11 to 20 of about 92,865 (288)

Population genetic structure in a self‐compatible hermaphroditic snail is driven by drift independently of its contemporary mating system [PDF]

open access: yesEcology and Evolution
Genetic drift, gene flow, and natural selection commonly influence population genetic diversity. In populations of self‐compatible hermaphrodites, the mating system (e.g., self‐fertilization) further reduces individual heterozygosity.
Cansu Çetin   +5 more
doaj   +2 more sources

Is genetic drift a force? [PDF]

open access: yesSynthese, 2016
One hotly debated philosophical question in the analysis of evolutionary theory concerns whether or not evolution and the various factors which constitute it (selection, drift, mutation, and so on) may profitably be considered as analogous to “forces” in the traditional, Newtonian sense.
Charles H. Pence   +2 more
openaire   +4 more sources

Genetic drift [PDF]

open access: yesJournal of Cell Science, 2009
This article is a short account of the theory of the genetic drift and some of its important consequences. In order to explain this theory simple simulation in Microsoft Excel is applied to show what one can expect in a large population divided into many
Łomnicki, Adam
openaire   +3 more sources

Negative frequency‐dependent selection maintains shell banding polymorphisms in two marine snails (Littorina fabalis and Littorina saxatilis)

open access: yesEcology and Evolution, 2021
The presence of shell bands is common in gastropods. Both the marine snails Littorina fabalis and Lttorina saxatilis are polymorphic for this trait. Such polymorphism would be expected to be lost by the action of genetic drift or directional selection ...
Daniel Estévez   +2 more
doaj   +1 more source

Management of Genetic Diversity in the Era of Genomics

open access: yesFrontiers in Genetics, 2020
Management of genetic diversity aims to (i) maintain heterozygosity, which ameliorates inbreeding depression and loss of genetic variation at loci that may become of importance in the future; and (ii) avoid genetic drift, which prevents deleterious ...
Theo H. E. Meuwissen   +3 more
doaj   +1 more source

Mining frequent itemsets from streaming transaction data using genetic algorithms

open access: yesJournal of Big Data, 2020
This paper presents a study of mining frequent itemsets from streaming data in the presence of concept drift. Streaming data, being volatile in nature, is particularly challenging to mine.
Sikha Bagui, Patrick Stanley
doaj   +1 more source

Characterizing patterns of genomic variation in the threatened Utah prairie dog: Implications for conservation and management

open access: yesEvolutionary Applications, 2021
Utah prairie dogs (Cynomys parvidens) are federally threatened due to eradication campaigns, habitat destruction, and outbreaks of plague. Today, Utah prairie dogs exist in small, isolated populations, making them less demographically stable and more ...
Rachael M. Giglio   +3 more
doaj   +1 more source

Mapping genes through the use of linkage disequilibrium generated by genetic drift: 'Drift mapping' in small populations with no demographic expansion [PDF]

open access: yes, 1998
Linkage disequilibrium has been a powerful tool in identifying rare disease alleles in human populations. To date, most research has been directed to isolated populations which have undergone a bottleneck followed by rapid exponential expansion.
Zöllner, Sebastian   +8 more
core   +1 more source

Genetic and morphometric divergence of an invasive bird: the introduced house sparrow (Passer domesticus) in Brazil. [PDF]

open access: yesPLoS ONE, 2012
Introduced species are interesting systems for the study of contemporary evolution in new environments because of their spatial and temporal scales. For this study we had three aims: (i) to determine how genetic diversity and genetic differentiation of ...
Marcos R Lima   +5 more
doaj   +1 more source

Assessment of genetic drift and migration in six cattle breeds [PDF]

open access: yesActa Fytotechnica et Zootechnica, 2020
Slovak Spotted cattle represents an endangered breed with cultural importance in Slovakia. The study was based on the panel of 34,604 SNPs that were used for genotyping of 451 individuals.
Kristína Lehocká
doaj   +1 more source

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