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- The extent to which a hybrid individual outperforms both its parents with respect to one or many traits. The genetic basis of hybrid vigour is not well understood, but the phenomenon is widespread, particularly in inbreeding plant species. Synonym: heterosis.
UN Food and Agriculture Organization - Cite This Source - This Definition
- ectopic, endogamy, exogamy, FISH, heterosis, in situ plaque hybridization, inbreeding depression, outbreeding