categoric trait

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Related to qualitative trait: qualitative inheritance

cat·e·gor·i·c trait

in genetics, a feature that can conveniently and effectively be analyzed by sorting into classes either because there is no satisfactory way of measuring it (as with blood groups) or because it falls into natural classes so that the variation among classes far exceeds that within classes (for example, the phenotypic effects of many enzyme polymorphisms); existence of categories suggests but does not prove the operation of a major, simple, underlying cause.
Synonym(s): qualitative trait

cat·e·gor·i·c trait

(kat'ĕ-gōr'ik trāt)
genetics A feature that can conveniently and effectively be analyzed by sorting into classes either because there is no satisfactory way of measuring it or because it falls into natural classes so that the variation among classes far exceeds that within classes; existence of categories suggests but does not prove the operation of a major, simple, underlying cause.
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References in periodicals archive ?
This approach has been used to select for qualitative traits to develop herbicide and disease resistant cultivars.
Qualitative traits have four distinguishing characteristics:
Absent -- Source: IPGRI (2006) Table 3: Qualitative traits of mango accessions from the UAR region of eastern Kenya Descriptor Phenotypic classes [chi square] trait (% of accessions with trait) Leaf blade 1 Elliptic (64.
5 Table 2: Analysis of variance qualitative traits measured in borage under effect nitrogen and nitroxin.
Tables for qualitative traits on both epidermis from the selected species were made in order to compare features that can be used as a taxonomic tool using leaf epidermis from specimens of the two studied groups of Solanum section Geminata.
Instead, metabolic costs of resistance and virulence alleles maintain polymorphism in qualitative traits.
Although, results varied among different treatments, application of compost and fertilizer markedly improved the qualitative traits as compared to control (Table 3).

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