Results 21 to 30 of about 141,341 (274)

Understanding evolutionary and ecological dynamics using a continuum limit

open access: yesEcology and Evolution, 2021
Continuum limits in the form of stochastic differential equations are typically used in theoretical population genetics to account for genetic drift or more generally, inherent randomness of the model. In evolutionary game theory and theoretical ecology,
Peter Czuppon, Arne Traulsen
doaj   +1 more source

The molecular clock of neutral evolution can be accelerated or slowed by asymmetric spatial structure. [PDF]

open access: yesPLoS Computational Biology, 2015
Over time, a population acquires neutral genetic substitutions as a consequence of random drift. A famous result in population genetics asserts that the rate, K, at which these substitutions accumulate in the population coincides with the mutation rate ...
Benjamin Allen   +5 more
doaj   +1 more source

Interplay between pleiotropy and secondary selection determines rise and fall of mutators in stress response. [PDF]

open access: yesPLoS Computational Biology, 2010
Mutators are clones whose mutation rate is about two to three orders of magnitude higher than the rate of wild-type clones and their roles in adaptive evolution of asexual populations have been controversial.
Muyoung Heo, Eugene I Shakhnovich
doaj   +1 more source

Phenotypic heterogeneity in modeling cancer evolution. [PDF]

open access: yesPLoS ONE, 2017
The unwelcome evolution of malignancy during cancer progression emerges through a selection process in a complex heterogeneous population structure. In the present work, we investigate evolutionary dynamics in a phenotypically heterogeneous population of
Ali Mahdipour-Shirayeh   +3 more
doaj   +1 more source

Mating system and speciation I: Accumulation of genetic incompatibilities in allopatry.

open access: yesPLoS Genetics, 2022
Self-fertilisation is widespread among hermaphroditic species across the tree of life. Selfing has many consequences on the genetic diversity and the evolutionary dynamics of populations, which may in turn affect macroevolutionary processes such as ...
Lucas Marie-Orleach   +2 more
doaj   +1 more source

Genetic Structure of the Ca Rater Mallorquí Dog Breed Inferred by Microsatellite Markers

open access: yesAnimals, 2022
Ca Rater Mallorquí is a dog breed from the Island of Mallorca (Spain) traditionally used as a hunting and ratting dog to prevent disease spread and economic losses related to rodent activities on farms. However, the census data shows a population decline
Lourdes Sofía Aguilera García   +8 more
doaj   +1 more source

Linking Diversity and Differentiation

open access: yesDiversity, 2010
Generally speaking, the term differentiation refers to differences between collections for the distribution of specified traits of their members, while diversity deals with (effective) numbers of trait states (types).
Hans-Rolf Gregorius
doaj   +1 more source

A practical genome scan for population-specific strong selective sweeps that have reached fixation. [PDF]

open access: yesPLoS ONE, 2007
Phenotypic divergences between modern human populations have developed as a result of genetic adaptation to local environments over the past 100,000 years. To identify genes involved in population-specific phenotypes, it is necessary to detect signatures
Ryosuke Kimura   +3 more
doaj   +1 more source

Fixation dynamics of beneficial alleles in prokaryotic polyploid chromosomes and plasmids

open access: yesbioRxiv, 2022
Theoretical population genetics has been mostly developed for sexually reproducing diploid and for monoploid (haploid) organisms, focusing on eukaryotes.
M. Santer   +3 more
semanticscholar   +1 more source

The role of duplications in the evolution of genomes highlights the need for evolutionary-based approaches in comparative genomics

open access: yesBiology Direct, 2011
Understanding the evolutionary plasticity of the genome requires a global, comparative approach in which genetic events are considered both in a phylogenetic framework and with regard to population genetics and environmental variables.
Levasseur Anthony, Pontarotti Pierre
doaj   +1 more source

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