The evolution of epigenetically mediated adaptive transgenerational plasticity in a subdivided population

Evolution ◽  
2018 ◽  
Vol 72 (12) ◽  
pp. 2773-2780 ◽  
Author(s):  
Philip B. Greenspoon ◽  
Hamish G. Spencer
Keyword(s):  
Transgenerational Plasticity ◽  
Subdivided Population

Effects of the habitat-soil factor on transgenerational plasticity in a diaspore-polymorphic cold desert annual

2021 ◽  
Author(s):  
Juanjuan Lu ◽  
Lu Gan ◽  
Dunyan Tan ◽  
Carol C. Baskin ◽  
Jerry M. Baskin
Keyword(s):  
Cold Desert ◽  
Transgenerational Plasticity ◽  
Soil Factor ◽  
Desert Annual

scholarly journals Selection, Subdivision and Extinction and Recolonization

Genetics ◽  
2004 ◽  
Vol 166 (2) ◽  
pp. 1105-1114 ◽  
Author(s):  
Joshua L Cherry
Keyword(s):  
Frequency Dependence ◽  
Allele Frequency ◽  
Deleterious Alleles ◽  
Subdivided Population ◽  
Theoretical Predictions ◽  
Subdivided Populations ◽  
Fixation Probabilities ◽  
Selection Parameters ◽  
To Come ◽  
Do So

Abstract In a subdivided population, the interaction between natural selection and stochastic change in allele frequency is affected by the occurrence of local extinction and subsequent recolonization. The relative importance of selection can be diminished by this additional source of stochastic change in allele frequency. Results are presented for subdivided populations with extinction and recolonization where there is more than one founding allele after extinction, where these may tend to come from the same source deme, where the number of founding alleles is variable or the founders make unequal contributions, and where there is dominance for fitness or local frequency dependence. The behavior of a selected allele in a subdivided population is in all these situations approximately the same as that of an allele with different selection parameters in an unstructured population with a different size. The magnitude of the quantity Nese, which determines fixation probability in the case of genic selection, is always decreased by extinction and recolonization, so that deleterious alleles are more likely to fix and advantageous alleles less likely to do so. The importance of dominance or frequency dependence is also altered by extinction and recolonization. Computer simulations confirm that the theoretical predictions of both fixation probabilities and mean times to fixation are good approximations.

Transgenerational Plasticity Is Adaptive in the Wild

Science ◽  
2007 ◽  
Vol 318 (5853) ◽  
pp. 1134-1136 ◽  
Author(s):  
L. F. Galloway ◽  
J. R. Etterson
Keyword(s):  
Transgenerational Plasticity ◽  
In The Wild

scholarly journals Selection, Load and Inbreeding Depression in a Large Metapopulation

Genetics ◽  
2002 ◽  
Vol 160 (3) ◽  
pp. 1191-1202 ◽  
Author(s):  
Michael C Whitlock
Keyword(s):  
Population Structure ◽  
Inbreeding Depression ◽  
Population Subdivision ◽  
Response To Selection ◽  
Mutation Load ◽  
Deleterious Alleles ◽  
Subdivided Population ◽  
Soft Selection ◽  
Mean Fitness ◽  
The Mean

Abstract The subdivision of a species into local populations causes its response to selection to change, even if selection is uniform across space. Population structure increases the frequency of homozygotes and therefore makes selection on homozygous effects more effective. However, population subdivision can increase the probability of competition among relatives, which may reduce the efficacy of selection. As a result, the response to selection can be either increased or decreased in a subdivided population relative to an undivided one, depending on the dominance coefficient FST and whether selection is hard or soft. Realistic levels of population structure tend to reduce the mean frequency of deleterious alleles. The mutation load tends to be decreased in a subdivided population for recessive alleles, as does the expected inbreeding depression. The magnitude of the effects of population subdivision tends to be greatest in species with hard selection rather than soft selection. Population structure can play an important role in determining the mean fitness of populations at equilibrium between mutation and selection.

Extreme climate shifts pest dominance hierarchy through thermal evolution and transgenerational plasticity

2021 ◽  
Author(s):  
Liang Zhu ◽  
Ary Hoffmann ◽  
Shi‐min Li ◽  
Chun‐Sen Ma
Keyword(s):  
Dominance Hierarchy ◽  
Thermal Evolution ◽  
Transgenerational Plasticity ◽  
Extreme Climate ◽  
Climate Shifts

scholarly journals Spatial differentiation of allozyme frequencies in a subdivided population of the land snail Helix aspersa

1999 ◽  
Vol 65 (2) ◽  
pp. 267-271 ◽  
Author(s):  
J.F. Arnaud ◽  
L. Madec ◽  
J. Daguzan
Keyword(s):  
Spatial Differentiation ◽  
Land Snail ◽  
Helix Aspersa ◽  
Subdivided Population ◽  
Snail Helix Aspersa

Phenotypic plasticity and character differentiation in a subdivided population ofIris pumila (Iridaceae)

1990 ◽  
Vol 170 (1-2) ◽  
pp. 1-9 ◽  
Author(s):  
Branka Tucić ◽  
A. Tarasjev ◽  
S. Vujčić ◽  
S. Milojković ◽  
N. Tucić
Keyword(s):  
Phenotypic Plasticity ◽  
Subdivided Population
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