Natural selection for extreme trait values over intermediate ones
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These charts depict the different types of genetic selection. On each graph, the x-axis variable is the type of phenotypic trait and the y-axis variable is the amount of organisms. Group A is the original population and Group B is the population after selection. Graph 1 shows directional selection, in which a single extreme phenotype is favored. Graph 2 depicts stabilizing selection, where the intermediate phenotype is favored over the extreme traits. Graph 3 shows disruptive selection, in which the extreme phenotypes are favored over the intermediate.
In evolutionary biology, disruptive selection, also called diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups. In this more individuals acquire peripheral character value at both ends of the distribution curve.[1][2]
^Sinervo, Barry. 1997. Disruptive Selection [1] Archived 2010-06-24 at the Wayback Machine in Adaptation and Selection. 13 April 2010.
^Lemmon, Alan R. 2000. EvoTutor. Natural Selection: Modes of Selection [2]. 13 April 2010.
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In evolutionary biology, disruptiveselection, also called diversifying selection, describes changes in population genetics in which extreme values for...
identified it as a type of natural selection along with stabilizing selection and disruptiveselection. These types of selection also operate by favoring a specific...
Genetic divergence can occur without geographic separation, through Disruptiveselection. This occurs when individuals in a population with both high and...
a. purifying selection) to select against extreme values of the character. Stabilizing selection is the opposite of disruptiveselection. Instead of favoring...
J. E. (1974), "Effects of population size and selection intensity on responses to disruptiveselection in Drosophila melanogaster", Genetics, 78 (2):...
directional selection, which is a shift in the average value of a trait over time—for example, organisms slowly getting taller. Secondly, disruptiveselection is...
of selection. Charles Darwin On the Origin of Species Evolution Natural selection Directional selection Stabilizing selectionDisruptiveselection Lande...
is the opposite of overdominance. It is the selection against the heterozygote, causing disruptiveselection and divergent genotypes. Underdominance exists...
modes of sympatric speciation. The most popular, which invokes the disruptiveselection model, was first put forward by John Maynard Smith in 1966. Maynard...
also been proposed that sexual dimorphism is merely the product of disruptiveselection, and is merely a stepping stone in the process of speciation, especially...
Emerson JJ, Cardoso-Moreira M, Borevitz JO, Long M (June 2008). "Natural selection shapes genome-wide patterns of copy-number polymorphism in Drosophila...
sporangia probably evolved in response to competition for light. Disruptiveselection within species resulted in there being two separate sexes of gamete...
hermaphroditism and dioecy. Evolution from dioecy to monoecy probably involves disruptiveselection on floral sex ratios.: 65 Monoecy is also considered to be a step...
artificial selection to mimic natural selection that eliminates the hybrids (often called "destroy-the-hybrids"), and using disruptiveselection to select...
Coincident disruptive coloration or coincident disruptive patterns are patterns of disruptive coloration in animals that go beyond the usual camouflage...
disruptiveselection to form a reproductive isolating barrier, as defined by Grant, and in fact Gottlieb stated that requiring disruptiveselection was...
March 2017. Rijssel; Moser; Frei; Seehausen (2018). "Prevalence of disruptiveselection predicts extent of species differentiation in Lake Victoria cichlids"...
population. Contrast assortative mating. dispersal disruptiveselection A mode of natural selection in which the extreme values of a trait or phenotype...
Disruptive mood dysregulation disorder (DMDD) is a mental disorder in children and adolescents characterized by a persistently irritable or angry mood...
Karlsson (1974), "Effects of population size and selection intensity on responses to disruptiveselection in Drosophila melanogaster", Genetics, 78 (2):...
favorably to the controlled disruptive action obtained in a PTFE and glass mortar and pestle homogenizer. While other disruptive methods depend upon friction...
competition and gamete limitation assume that anisogamy originated through disruptiveselection acting on an ancestral isogamous population with external fertilization...
the case for natural selection. Cott described many kinds of camouflage, and in particular his drawings of coincident disruptive coloration in frogs convinced...
cannot be invaded by nearby mutants. Third, a fitness minimum where disruptiveselection will occur and the population branch into two morphs. This process...
Selection bias is the bias introduced by the selection of individuals, groups, or data for analysis in such a way that proper randomization is not achieved...
flow acting as a barrier to divergence in the local population, disruptiveselection drives assortative mating; eventually leading to a complete reduction...
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