Translation guide
Outbreeding refers to reproduction between distantly related individuals, often contrasted with inbreeding. In Japanese, this concept is expressed through technical terms in biology and genetics, as well as more general phrases describing marriage or mating outside a group.
The scientific concept of mating between genetically distant individuals to increase heterozygosity.
The standard biological term for outbreeding, referring to mating between unrelated or distantly related individuals.
異系交配は遺伝的多様性を高める。
Outbreeding increases genetic diversity.
A shorter term for outbreeding, often used in genetics and breeding contexts.
The practice of marrying or mating outside one's social, ethnic, or familial group.
In Japanese, outbreeding (異系交配) is often contrasted with inbreeding (近親交配 or 近交). Inbreeding depression is 近交弱勢, while outbreeding enhancement is sometimes called 雑種強勢 (heterosis).
近親交配は有害な劣性遺伝子を発現させる可能性があるが、異系交配はそれを防ぐ。
Inbreeding can cause harmful recessive genes to be expressed, but outbreeding prevents that.
For everyday conversation about marrying outside one's community, use 外部との結婚 or 国際結婚 (international marriage) if applicable. 族外婚 is strictly anthropological.
遠交は近交弱勢を防ぐ。
Outbreeding prevents inbreeding depression.
Katakana loanword from English, used in scientific contexts.
アウトブリーディングは集団の適応度を向上させる。
Outbreeding improves the fitness of the population.
Anthropological term for exogamy, the custom of marrying outside a specific group.
その部族では族外婚が伝統的に行われている。
Exogamy is traditionally practiced in that tribe.
A general phrase meaning 'marriage with outsiders', used in everyday language.
外部との結婚が増えている。
Marriages with outsiders are increasing.
A more literal phrase meaning 'mating with a different group', used in biological or sociological discussions.
異なる集団との交配が遺伝子流動を引き起こす。
Mating with different groups causes gene flow.