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Heterochrony

In evolutionary developmental biology, heterochrony is any genetically controlled difference in the timing, rate, or duration of a developmental process in an organism compared to its ancestors or other organisms. This leads to changes in the size, shape, characteristics and even presence of certain organs and features. It is contrasted with heterotopy…

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Mechanisms

Detection

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Heterochrony

Nodes64
Edges63
Triples46
Avg. degree1.97
Density0.03125
Components1

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Heterochrony

Top relations

related to history · 14
Heterochrony → As Stephen Jay Gould, Beer, British, English, Ernst Haeckel, Gavin, German, Haeckel, Haeckel's, He, In, The, This, Walter Garstang
related to Detection · 6
Heterochrony → Event, It, PARSIMOV, The, These, This
related to In humans · 4
Heterochrony → Humans, In, Several, This
related to Mechanisms · 4
Heterochrony → Ambystoma, For, Intraspecific, Reilly
related to Paedomorphosis · 4
Heterochrony → In, Neoteny, Paedomorphosis, This
related to Related concepts · 3
Heterochrony → John Spicer, The, Warren Burggren
is a · 1
Heterochrony → focus

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Important terminology

development developmental species process peramorphosis paedomorphosis adult juvenile relative form change rate changes neoteny evolutionary timing ancestral time phylogeny organism

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Heterochronyis afocus0.90text
the notochord with adult vertebratesinstance ofthe English embryologist Walter Garstang showed that tunicate larvae shared structures0.80text
and suggested that the vertebrates arose by paedomorphosisinstance ofthe English embryologist Walter Garstang showed that tunicate larvae shared structures0.80text
this agedinstance ofAs an organism0.80text
they would change greatly in their cranial morphology to develop a robust skull with largerinstance ofAs an organism0.80text
overlapping bonesinstance ofAs an organism0.80text
the lengthening of the fingers by adding extra phalanges in dolphins to form their flippersinstance ofAcross the animal kingdomHeterochrony is responsible for a wide variety of effects0.80text
sexual dimorphisminstance ofAcross the animal kingdomHeterochrony is responsible for a wide variety of effects0.80text
and the polymorphism seen between insect castes.Garstang's hypothesisWalter Garstang suggested the neotenous origin of the vertebrates from a tunicate larvainstance ofAcross the animal kingdomHeterochrony is responsible for a wide variety of effects0.80text
in opposition to Darwin's opinion that tunicatesinstance ofAcross the animal kingdomHeterochrony is responsible for a wide variety of effects0.80text
vertebrates both evolved from animals whose adult form was similar toinstance ofAcross the animal kingdomHeterochrony is responsible for a wide variety of effects0.80text
Heterochronyrelated to DetectionThese0.60section

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