Results 41 to 50 of about 5,339,479 (329)

Reduction of a metapopulation genetic model to an effective one island model [PDF]

open access: yes, 2018
We explore a model of metapopulation genetics which is based on a more ecologically motivated approach than is frequently used in population genetics. The size of the population is regulated by competition between individuals, rather than by artificially
Alan J. McKane   +8 more
core   +2 more sources

FLUCTUATING POPULATION SIZE AND THE RATIO OF EFFECTIVE TO CENSUS POPULATION SIZE [PDF]

open access: yesEvolution, 1997
The effective size of a population (Ne) quantifies the rate at which genetic diversity is eroded by genetic drift (i.e., 112Ne per generation), a fundamental process of evolutionary change. Genetic diversity and its rate of decay have been linked with key components of population fitness (Allendorf and Leary 1987; Ralls et al. 1988; Briscoe et al. 1992;
John A, Vucetich   +2 more
openaire   +2 more sources

Assessing the genetic diversity in small farm animal populations*

open access: yesAnimal, 2011
Genetic variation is vital for the populations to adapt to varying environments and to respond to artificial selection; therefore, any conservation and development scheme should start from assessing the state of variation in the population.
M.A. Toro   +4 more
doaj   +1 more source

Host body size, not host population size, predicts genome-wide effective population size of parasites

open access: yesEvolution Letters, 2022
AbstractThe effective population size (Ne) of an organism is expected to be generally proportional to the total number of individuals in a population. In parasites, we might expect the effective population size to be proportional to host population size and host body size, because both are expected to increase the number of parasite individuals ...
Jorge Doña, Kevin P. Johnson
openaire   +3 more sources

Effective Population Size in a Continuously Distributed Population [PDF]

open access: yesEvolution, 1995
An individual-based simulation model was created to examine genetic variability, time until fixation and spatial genetic structure in a continuously distributed population. Previous mathematical models for continuously distributed populations have the difficulty that the assumption of independent reproduction and independent dispersal of offspring ...
openaire   +2 more sources

Effective Population Size and Population Subdivision in Demographically Structured Populations [PDF]

open access: yesGenetics, 2002
Abstract A fast-timescale approximation is applied to the coalescent process in a single population, which is demographically structured by sex and/or age. This provides a general expression for the probability that a pair of alleles sampled from the population coalesce in the previous time interval.
Valérie, Laporte, Brian, Charlesworth
openaire   +2 more sources

A new reference genome assembly for the microcrustacean Daphnia pulex [PDF]

open access: yes, 2017
Comparing genomes of closely related genotypes from populations with distinct demographic histories can help reveal the impact of effective population size on genome evolution. For this purpose, we present a high quality genome assembly of Daphnia pulex (
Ackerman, Matthew S   +12 more
core   +3 more sources

Relaxation of purifying selection suggests low effective population size in eusocial Hymenoptera and solitary pollinating bees

open access: yesbioRxiv, 2020
Eusociality and parastitism are specific life-history strategies particularly common in Hymenoptera. At the population genetics level, low effective population size and reduced efficiency of purifying selection have been suggested as an evolutionary ...
A. Weyna, J. Romiguier
semanticscholar   +1 more source

Population genomics of American mink using genotype data

open access: yesFrontiers in Genetics, 2023
Understanding the genetic structure of the target population is critically important to develop an efficient genomic selection program in domestic animals.
Guoyu Hu   +8 more
doaj   +1 more source

The demography of free-roaming dog populations and applications to disease and population control [PDF]

open access: yes, 2014
Understanding the demography of domestic dog populations is essential for effective disease control, particularly of canine-mediated rabies. Demographic data are also needed to plan effective population management.
Cleaveland, Sarah   +9 more
core   +1 more source

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