Results 51 to 60 of about 5,339,479 (329)
Do estimates of contemporary effective population size tell us what we want to know?
Molecular Ecology, 2019 Estimation of effective population size (Ne) from genetic marker data is a major focus for biodiversity conservation because it is essential to know at what rates inbreeding is increasing and additive genetic variation is lost.
N. Ryman, L. Laikre, O. Hössjer
semanticscholar +1 more source
Effective sizes for subdivided populations. [PDF]
Genetics, 1993 Abstract Many derivations of effective population sizes have been suggested in the literature; however, few account for the breeding structure and none can readily be expanded to subdivided populations. Breeding structures influence gene correlations through their effects on the number of breeding individuals of each sex, the mean number
R K, Chesser +3 more
openaire +2 more sources
Circulating virus load determines the size of bottlenecks in viral populations progressing within a host [PDF]
, 2012 For any organism, population size, and fluctuations thereof, are of primary importance in determining the forces driving its evolution. This is particularly true for viruses—rapidly evolving entities that form populations with transient and explosive ...
Blanc, Stéphane +6 more
core +5 more sources
Genes, 2019 Detection of selection footprints provides insight into the evolution process and the underlying mechanisms controlling the phenotypic diversity of traits that have been exposed to selection.
R. Islam +7 more
semanticscholar +1 more source
Fertility Variation and Effective Population Size in a Teak Clonal Seed Orchard [PDF]
, 2011 A 27 year old clonal seed orchard of teak (Tectona grandis L.f ) in Padangan, East Java comprising 24 clones, was evaluated for fertility, offspring diversity, and genetic drift.
Sumardi, S. (Sumardi)
core +3 more sources
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
Finite-Size Scaling of a First-Order Dynamical Phase Transition: Adaptive Population Dynamics and an Effective Model [PDF]
, 2017 We analyze large deviations of the time-averaged activity in the one dimensional Fredrickson-Andersen model, both numerically and analytically. The model exhibits a dynamical phase transition, which appears as a singularity in the large deviation ...
Jack, Robert L. +2 more
core +2 more sources
The effective size of bryophyte populations
Journal of Theoretical Biology, 2009 Bryophytes with their dominant haploid stage conform poorly to the life cycles generally treated in population genetical models. Here we make a detailed analysis of what effective sizes bryophyte model populations have as a function of their breeding system.
Bengtsson, Bengt O., Cronberg, Nils
openaire +4 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
Factors driving effective population size and pan-genome evolution in bacteria
BMC Evolutionary Biology, 2018 Knowledge of population-level processes is essential to understanding the efficacy of selection operating within a species. However, attempts at estimating effective population sizes (Ne) are particularly challenging in bacteria due to their extremely ...
L. Bobay, H. Ochman
semanticscholar +1 more source