139 Citations
Sources of evolutionary contingency: chance variation and genetic drift
- BiologyBiology & Philosophy
- 2020
A probabilistic conception of what it is to be a source of contingency is offered and two major candidates are examined: chance variation and genetic drift, both of which have historically been taken to be ‘chancy’ in a number of different senses.
In What Sense Can There Be Evolution by Natural Selection Without Perfect Inheritance?
- PhilosophyInternational Studies in the Philosophy of Science
- 2019
ABSTRACT In Darwinian Population and Natural Selection, Peter Godfrey-Smith brought the topic of natural selection back to the forefront of philosophy of biology, highlighting different issues…
Genetic draft and valley crossing
- BiologybioRxiv
- 2018
It is confirmed that rapid adaptation overall increases the time required to cross a valley; however, rapid adaptation can make it easier for deeper valleys to be crossed relative to the time needed for single beneficial mutations to sweep to fixation.
Molecular Clock of Neutral Mutations in a Fitness-Increasing Evolutionary Process
- BiologyPLoS genetics
- 2015
The present study is the first experimental demonstration for the molecular clock of neutral mutations in a fitness-increasing evolutionary process and suggests that the numerous neutral mutations observed in molecular phylogenetic trees may not always have been fixed in fitness-steady evolution but in adaptive evolution.
Fitness and the Twins
- Philosophy, BiologyPhilosophy, Theory, and Practice in Biology
- 2020
It is argued that evolutionary theory has no commitment, one way or the other, as to whether the twins are equally fit, because the theory of natural selection is fundamentally about the Fitnesses of traits, not the fitnesses of token individuals.
Natural Selection and Drift as Individual-Level Causes of Evolution
- PhilosophyActa biotheoretica
- 2018
It is shown that once both the manipulation condition and the criterion of invariance are taken into account, drift, in this example, should better be understood as an individual-level rather than a population-level cause.
Effective population size for culturally evolving traits
- BiologybioRxiv
- 2021
This work provides a formal derivation for cultural effective population size and uses mathematical and computational models to study how effective size and cultural diversity depend on (1) the way culture is transmitted, (2) levels of migration and cultural exchange, as well as (3) social network structure.
A Simulation Study on the Effects of Founding Population Size and Number of Alleles Per Locus on the Observed Population Genetic Profile: Implications to Broodstock Management
- Biology
- 2020
The results suggest that genetic drift occurs regardless of population sizes, which may have implications in broodstock management to constantly minimize the impact of genetic drift regardless of broodstock population.
Rethinking Hardy–Weinberg and genetic drift in undergraduate biology
- BiologyBioEssays : news and reviews in molecular, cellular and developmental biology
- 2012
It is argued that teaching these two topics first aligns neither with current expert knowledge, nor with good pedagogy, and recommended an alternative, historically inspired ordering of population genetics topics, based on progressively increasing mathematical difficulty.
Different Evolutionary Paths to Complexity for Small and Large Populations of Digital Organisms
- BiologybioRxiv
- 2016
It is found that genetic drift could lead to increased genome size and phenotypic complexity in very small populations and that purifying selection is not powerful enough to prevent the evolution of complexity in large populations.
References
SHOWING 1-10 OF 11 REFERENCES
IS THE POPULATION SIZE OF A SPECIES RELEVANT TO ITS EVOLUTION?
- Environmental Science, BiologyEvolution; international journal of organic evolution
- 2001
It is suggested that population size and binomial sampling may not be relevant to a species' evolution, if this is the case, then a number of evolutionary conundrums are resolved.
Exact moment calculations for genetic models with migration, mutation, and drift.
- BiologyTheoretical population biology
- 2003
GENE FREQUENCY IN SMALL POPULATIONS OF MUTANT DROSOPHILA
- Biology
- 1956
The present study was intended to provide information on the relative selective values of two mutant autosomal alleles and their several zygotic types under several different experimental conditions and to observe the effect of the interaction of selection and random drift on the distribution of gene frequencies among the elements of subdivided populations of the sort observed by Kerr.
Toward a Selection Theory of Molecular Evolution
- BiologyEvolution; international journal of organic evolution
- 2008
By sequencing the whole genomes of multiple lines of Drosophila simulans this work should cause a major shift in how the authors interpret DNA variation within populations and among species, and force us to see that the central predictions of the Neutral Theory do not hold in natural populations.
An introduction to population genetics theory
- Biology
- 1970
An introduction to population genetics theory , An introduction to population genetics theory , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
An introduction to population
- Economics, History
- 2012
Preface. PART I: A DEMOGRAPHIC PERSPECTIVE. 1. Introduction to Demography. 2. Global Population Trends. 3. Demographic Perspectives. 4. Demographic Data. PART II: POPULATION PROCESSES. 5. The Health…
How could there be separate sexes if there can be self-fertilization? 15 More about this later
- How could there be separate sexes if there can be self-fertilization? 15 More about this later
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- 2008
E-mail: masel@u.arizona
- E-mail: masel@u.arizona