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Qué (quién) es outbreeding - definición
DIFFERENCE IN A QUANTITATIVE TRAIT BETWEEN HETEROZYGOUS AND HOMOZYGOUS GENOTYPES
Heterotic; Hybrid Vigor; Hybrid vigor; Hybrid vigour; Outbreeding Enhancement; Outbreeding Enhancement(Heterosis); Outbreeding Enhancement (Heterosis); Overdominance hypothesis; Hibrid vigor; Dominance versus overdominance; Hybrid corn; Heterotic group; Heterozygosis; Heterosity
![Time course imaging of two [[maize]] [[inbred]]s and their [[F1 hybrid]] (middle) exhibiting heterosis.](https://commons.wikimedia.org/wiki/Special:FilePath/Time course imaging of two maize inbreds LH198 and PHG47 and their F1 hybrid.gif?width=200 "Time course imaging of two [[maize]] [[inbred]]s and their [[F1 hybrid]] (middle) exhibiting heterosis.")
outbreeding
noun breed from parents not closely related.
Outbreeding depression
REDUCED FITNESS AS A RESULT OF OUTBREEDING
In biology, outbreeding depression happens when crosses between two genetically distant groups or populations result in a reduction of fitness. This is particularly likely if the subspecies have different habitats or if no genetic exchange has occurred within 500 years.
outbreed
¦ verb (past and past participle outbred) [usu. as noun outbreeding] breed from parents not closely related.
Wikipedia
Heterosis
Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents. The heterotic offspring often has traits that are more than the simple addition of the parents' traits, and can be explained by Mendelian or non-Mendelian inheritance. Typical heterotic/hybrid traits of interest in agriculture are higher yield, quicker maturity, stability, drought tolerance etc.
Ejemplos de uso de outbreeding
1. "Words like ‘inbreeding‘ and ‘outbreeding‘ are very professional, genetic terms," he told BBC Radio.
2. As Patrick Bateson and others have shown, "optimal outbreeding" is achieved with a surprisingly small degree of genealogical separation.
3. "It has obviously caused a lot of offence and for that I unreservedly apologise," he said but added: "Words like inbreeding and outbreeding are very professional, genetic terms.