V2EX genetic incompatibility

Genetic Incompatibility

定义 Definition

遗传不相容(遗传不兼容):指两个个体(常见于不同种群或近缘物种)的基因组合在一起时,因基因之间“配合不良”而导致受精失败、胚胎/后代存活率低、发育异常或不育等现象,是生殖隔离与物种形成研究中的常见概念。(在不同语境下也可泛指某些基因型与特定遗传背景“不匹配”。)

发音 Pronunciation (IPA)

/dntk nkmptblti/

例句 Examples

Genetic incompatibility can prevent two populations from producing fertile offspring.
遗传不相容可能会阻止两个种群产生可育的后代。

Even when hybrid embryos form, genetic incompatibility between interacting genes may reduce survival, illustrating a key mechanism of reproductive isolation.
即使杂交胚胎能够形成,彼此作用的基因之间若存在遗传不相容,也可能降低存活率,从而体现生殖隔离的一种关键机制。

词源 Etymology

genetic 来自 gene(基因)+ -ic(……的),表示“与基因/遗传有关的”;incompatibility 由 *in-*(不)+ compatible(相容的)+ -ity/em>(名词后缀)构成,字面义就是“无法相容的状态”。合起来即“遗传层面上的不相容”。

相关词 Related Words

文学与著作 Literary Works

  • Speciation(Jerry A. Coyne & H. Allen Orr)讨论物种形成时,遗传不相容作为生殖隔离的重要来源。
  • Endless Forms Most Beautiful(Sean B. Carroll)以通俗方式介绍发育与基因互作如何导致不相容与物种分化。
  • Evolution(Douglas J. Futuyma)进化生物学经典教材,涉及杂交后代适合度降低与遗传不相容等主题。
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