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Directional selection

In population genetics, directional selection is a mode of natural selection in which individuals with a trait (for example, beak size) at one extreme of a phenotypic distribution have better fitness than individuals with intermediate or opposite extreme phenotypes. Over time, the allele frequencies, and consequently the population mean for the trait…

Examples, Darwinian origins of the concept & Genetic basis – types of selection and limits

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Darwinian origins of the concept

Genetic basis – types of selection and limits

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Directional selection

Nodes50
Edges49
Triples81
Avg. degree1.96
Density0.04
Components1

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Directional selection

Top relations

related to Sockeye salmon · 14
Directional selection → After, Alaska, Alaska Department, Bristol Bay, Data, Egegik, Fish, Game, In, Sockeye, The, The Egegik, These, Ugashik
related to Soapberry Bugs · 13
Directional selection → Carroll, Christin Boyd, Each, However, Jadera, North America, Sapindaceae, Scott Carroll, Soapberry Bugs, There, These, They, To
has method · 11
Directional selection → Analysis, Different, Directional, In, Ka/Ks, QTL, QTLs, The, The Ka/Ks, The QTL, This
related to African cichlids · 11
Directional selection → African, Albertson, Experiments, However, Labeotropheus, Metriaclima, QTL, QTLs, The, These, Using
related to Darwinian origins of the concept · 11
Directional selection → Charles Darwin, Directional, Disruptive, He, It, On, Origin, Species, Stabilizing, The, These
related to Peppered moths · 7
Directional selection → After, As, Before, During, Industrial Revolution, The, They
related to Large Felids · 5
Directional selection → Conversely, Panthera, The, These, This
related to Genetic basis – types of selection and limits · 4
Directional selection → Another, At, Directional, Such
is a · 3
Directional selection → fluctuation of light and dark phenotypes in peppered moths in the 1800s, mode of natural selection in which individuals with a trait, primary cause of the phenotypic diversification that can eventually result in speciation.Different statistical tests can be run to test for directional selection in a population

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Important terminology

selection directional genetic population size allele species variation natural trait phenotypic phenotypes frequency body test example one extreme phenotype moths

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Directional selectionis amode of natural selection in which individuals with a trait0.90text
Directional selectionis afluctuation of light and dark phenotypes in peppered moths in the 1800s0.90text
Directional selectionis aprimary cause of the phenotypic diversification that can eventually result in speciation.Different statistical tests can be run to test for directional selection in a population0.90text
prey sizeinstance ofThese findings highlight that body size evolution in felids is not uniform and is strongly influenced by ecological factors0.80text
hunting behaviorinstance ofThese findings highlight that body size evolution in felids is not uniform and is strongly influenced by ecological factors0.80text
Directional selectionhas methodDirectional0.60section
Directional selectionhas methodAnalysis0.60section
Directional selectionhas methodQTL0.60section
Directional selectionhas methodIn0.60section
Directional selectionhas methodQTLs0.60section
Directional selectionhas methodThis0.60section
Directional selectionhas methodDifferent0.60section

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