Results 31 to 40 of about 1,472,050 (256)
POPULATION STRUCTURE AND EFFECTIVE SIZE OF A LIZARD POPULATION [PDF]
Evolution, 1965 Sewall Wright, R. A. Fisher, and others have shown the influence of population size on the fluctuation in gene frequencies but have disagreed on the explanation for it. The ratio of the effective population number to the actual number is a measure of the extent to which parents make unequal contributions to succeeding generations.
openaire +2 more sources
On the Meaning and Existence of an Effective Population Size [PDF]
Genetics, 2005 Abstract We investigate conditions under which a model with stochastic demography or population structure converges to the coalescent with a linear change in timescale. We argue that this is a necessary condition for the existence of a meaningful effective population size.
P, Sjödin +4 more
openaire +2 more sources
Prediction and estimation of effective population size [PDF]
Heredity, 2016 Effective population size (Ne) is a key parameter in population genetics. It has important applications in evolutionary biology, conservation genetics and plant and animal breeding, because it measures the rates of genetic drift and inbreeding and affects the efficacy of systematic evolutionary forces, such as mutation, selection and migration.
Wang, J, Santiago, E, Caballero, A
openaire +3 more sources
Population genomics of American mink using genotype data
Frontiers 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
Variance effective population size is affected by census size in sub‐structured populations
Molecular Ecology Resources, 2023 AbstractMeasurement of allele frequency shifts between temporally spaced samples has long been used for assessment of effective population size (Ne), and this ‘temporal method’ provides estimates of Ne referred to as variance effective size (NeV). We show that NeV of a local population that belongs to a sub‐structured population (a metapopulation) is ...
Nils Ryman, Linda Laikre, Ola Hössjer
openaire +2 more sources
Effective Population Size and Population Subdivision in Demographically Structured Populations [PDF]
Genetics, 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
The effect of neighborhood size on effective population size in theory and in practice [PDF]
Heredity, 2016 The distinction between the effective size of a population (Ne) and the effective size of its neighborhoods (Nn) has sometimes become blurred. Ne reflects the effect of random sampling on the genetic composition of a population of size N, whereas Nn is a measure of within-population spatial genetic structure and depends strongly on the dispersal ...
openaire +4 more sources
The effect of sample size on estimates of genetic differentiation and effective population size for Schistosoma mansoni populations [PDF]
International Journal for Parasitology, 2018 Eradication or local extinction of the human parasite Schistosoma mansoni is a goal for many control programs. Population genetic analyses are helping to evaluate and guide these efforts, yet what to sample, how to sample and how densely to sample is not well established. We determined the S.
Lúcio M. Barbosa +5 more
openaire +2 more sources
BMC Genomics, 2020 Background In bacteria, pan-genomes are the result of an evolutionary “tug of war” between selection and horizontal gene transfer (HGT). High rates of HGT increase the genetic pool and the effective population size (N e ), resulting in open pan-genomes ...
Mirna Vázquez-Rosas-Landa +9 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian +13 more
wiley +1 more source