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heterosis

heterosis

1 9.9
Better growth in a hybrid plant or animal than its parents
  • noun
  • /ˌhɛtəˈroʊsɪs/
  • Specialized
translation icon : heterosis

Examples

  • Heterosis, or hybrid vigor... may be an important factor in these latter traits... and the crossing of genetic unlikes... produces heterosis for best crossbreeding.

  • Heterosis, or hybrid vigor... may be an important factor in these latter traits... and the crossing of genetic unlikes... produces heterosis for best crossbreeding.

  • Hybrid crops often exhibit heterosis, showing greater yield compared to their parent plants.

  • Farmers frequently rely on heterosis to improve crop resilience and productivity in agriculture.

  • The phenomenon of heterosis helps explain why some crossbred animals are stronger and healthier than their purebred counterparts.

Synonyms

hybrid vigor
vsheterosis
  • Specialized
1 6.1

Greater growth, health, or amount produced in young plants and animals from two different parents

is about the tendency to exhibit superior qualities rather than the observed results
overdominance
vsheterosis
  • Specialized
9.9

A case where a plant or animal with two different gene forms is healthier than those with two same forms

is about observed superior traits in crossbreds rather than a specific genetic cause

Surface Forms

heterosis singular
heteroses plural

Morphology

heterosis = hetero (opaque) = hetero + osis

Although built from 'hetero-' (different) + '-osis' (a condition), the specialized genetics meaning 'hybrid vigor' is technical and not inferable by an average learner from those parts.

Etymology

Heterosis comes from Greek parts hetero- meaning 'different', as in heterogeneous, and -osis meaning 'a condition'. So heterosis is the 'condition of difference' that helps you remember when offspring from two different parents often grow better or stronger than either parent.