Results 51 to 60 of about 225,095 (185)
Muller's ratchet and mutational meltdowns [PDF]
, 1993 We extend our earlier work on the role of deleterious mutations in the extinction of obligately asexual populations. First, we develop analytical models for mutation accumulation that obviate the need for time-consuming computer simulations in certain ...
Bürger, Reinhard +2 more
core +1 more source
Fixation and consensus times on a network: a unified approach
, 2008 We investigate a set of stochastic models of biodiversity, population genetics, language evolution and opinion dynamics on a network within a common framework. Each node has a state, 0 < x_i < 1, with interactions specified by strengths m_{ij}.
A. J. McKane +9 more
core +1 more source
Genetic Diversity and Structure of Calophyllum brasiliense Along the Santa Catarina Coast
Floresta e Ambiente, 2019 Population genetics studies can provide knowledge in support of conservation efforts for plant populations. We studied the genetic diversity and structure in nine populations of Calophyllum brasiliense from Santa Catarina state, Brazil, aiming to ...
Fernando André Loch Santos da Silva +4 more
doaj +1 more source
Robust forward simulations of recurrent hitchhiking [PDF]
, 2014 Evolutionary forces shape patterns of genetic diversity within populations and contribute to phenotypic variation. In particular, recurrent positive selection has attracted significant interest in both theoretical and empirical studies.
Hernandez, Ryan D. +1 more
core +2 more sources
On the stochastic evolution of finite populations [PDF]
, 2016 This work is a systematic study of discrete Markov chains that are used to describe the evolution of a two-types population. Motivated by results valid for the well-known Moran (M) and Wright-Fisher (WF) processes, we define a general class of Markov chains models which we term the Kimura class.
arxiv +1 more source
Population dynamics in compressible flows
, 2012 Organisms often grow, migrate and compete in liquid environments, as well as on solid surfaces. However, relatively little is known about what happens when competing species are mixed and compressed by fluid turbulence.
A. Kolmogorov +51 more
core +1 more source
Ecology and EvolutionThe fixation index, FIS, has been a staple measure to detect selection, or departures from random mating in populations. However, current Next Generation Sequencing (NGS) cannot easily estimate FIS, in multi‐locus gene families that contain multiple loci
Gabe D. O'Reilly +6 more
doaj +1 more source
Applications in Plant Sciences, 2019 Premise The genus Antennaria has a complex evolutionary history due to dioecism, excessive polyploidy, and the evolution of polyploid agamic complexes. We developed microsatellite markers from A.
Ramhari Thapa +2 more
doaj +1 more source
Stronger selection can slow down evolution driven by recombination on a smooth fitness landscape. [PDF]
PLoS ONE, 2017 Stronger selection implies faster evolution-that is, the greater the force, the faster the change. This apparently self-evident proposition, however, is derived under the assumption that genetic variation within a population is primarily supplied by ...
Masahiko Ueda +2 more
doaj +1 more source
Dynamics of Fixation of Advantageous Mutations
, 2003 We investigate the process of fixation of advantageous mutations in an asexual population. We assume that the effect of each beneficial mutation is exponentially distributed with mean value $\omega_{med}=1/\beta$. The model also considers that the effect
Barton +23 more
core +1 more source