Last Updated
：2025/11/29
mutational meltdown
Noun
countable
uncountable
Japanese Meaning
遺伝学における現象で、少数の個体群が有害な突然変異を蓄積し、適応度が低下することにより個体数が減少し、その結果さらなる有害変異の固定（遺伝的浮動による）が進行する現象。
（ plural ）
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(genetics) The process by which a small population accumulates harmful mutations, which leads to loss of fitness and decline of the population size, which may lead to further accumulation of deleterious mutations due to fixation by genetic drift.
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mutational meltdown
Conservationists worried that the island fox population could suffer a mutational meltdown if inbreeding continued.
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Conservationists worried that the island fox population could suffer a mutational meltdown if inbreeding continued.
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