How to model the relationship between a phenotypic trait and a phenotypic state (phenotype) of that trait?

[rays22]

Is there some causative effect component between a phenotypic trait and a phenotypic state (phenotype) of that trait?

1. OBA trait and uPheno phenotype

graph TB
%% define node labels
oba((OBA phenotypic trait))
upheno>uPheno phenotype variant]
%% define graph structure
oba -->|phenotypic change| upheno
%% actions - links
click oba "https://www.ebi.ac.uk/ols/ontologies/oba"
click upheno ""https://ols.monarchinitiative.org/ontologies/upheno2

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2. An example
   eye colour trait -[?]-> red eye colour phenotype.

graph TB
%% define node labels
oba((eye colour trait))
upheno1(red eye colour phenotype)
upheno2>white eye colour phenotype]
%% define graph structure
oba -->|something causes| upheno1
oba -->|something causes| upheno2

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something causes = realisation/manifestation of a genotype, genetic programme, blueprint in an item

Researchers usually find phenotypes by comparing the trait manifestations (i.e. phenotypic states) in individual instances in experimental and control groups, but when they assign a phenotype they always imply that there is a genetic cause or contribution..

3. An example from outside of biology: colour -[paint an item red causes]-> red item, here we can also assume a causation that makes the item to have a colour of red.

graph TB
%% define node labels
oba((colour))
upheno(red item)
%% define graph structure
oba -->|paint it| upheno

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