Results 21 to 30 of about 234,175 (326)

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

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

The Effects of Population Size Histories on Estimates of Selection Coefficients from Time-Series Genetic Data. [PDF]

open access: yes, 2016
Many approaches have been developed for inferring selection coefficients from time series data while accounting for genetic drift. These approaches have been motivated by the intuition that properly accounting for the population size history can ...
Jewett, Ethan   +2 more
core   +1 more source

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

open access: yes, 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

Combining genetic and demographic monitoring better informs conservation of an endangered urban snake.

open access: yesPLoS ONE, 2020
Conversion and fragmentation of wildlife habitat often leads to smaller and isolated populations and can reduce a species' ability to disperse across the landscape.
Dustin A Wood   +5 more
doaj   +1 more source

GA Optimisation of Crossed Dipole FSS Array Geometry [PDF]

open access: yes, 2001
Crossed dipoles are used as dual polarised elements in frequency selective surface arrays but the transmission response is angle of incidence dependent. A genetic algorithm has been used to minimise the drift of the reflection band, stabilising it for a ...
A.D. Chuprin   +5 more
core   +1 more source

Natural Selection and Genetic Drift: Neutral and adaptive genetic variability of hatchery versus wild populations in brown trout Salmo trutta

open access: yesFrontiers in Marine Science, 2015
Genetic drift and natural selection are two of the major forces shaping the genetic makeup of a population. Genetic drift reduces genetic variability due to the random loss of alleles during the transition from one generation to the next one. The smaller
Tamara Schenekar
doaj   +1 more source

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