V2EX hardy-weinberg equilibrium

Hardy-Weinberg Equilibrium

释义 Definition

哈代温伯格平衡:群体遗传学中的一个基准模型,指在随机交配无自然选择、无突变、无迁移、群体足够大(无遗传漂变)等理想条件下,等位基因频率与基因型频率在世代间保持不变。常用来作为“无进化作用”情况下的对照;现实中偏离该平衡常提示存在进化因素(如选择或近交)。

发音 Pronunciation

/hrdi wanbr ikwlbrim/

例句 Examples

In an ideal population, allele frequencies stay constant under Hardy-Weinberg equilibrium.
在理想群体中,在哈代温伯格平衡条件下,等位基因频率会保持恒定。

Researchers used Hardy-Weinberg equilibrium (p + 2pq + q = 1) to test whether the observed genotype counts suggested selection, inbreeding, or population structure.
研究者利用哈代温伯格平衡(p + 2pq + q = 1)来检验观察到的基因型数量是否暗示存在自然选择、近交或群体结构。

词源 Etymology

该术语来自两位提出这一思想的学者姓名:英国数学家 G. H. Hardy 与德国医生/遗传学家 Wilhelm Weinberg(约1908年)。equilibrium 源自拉丁语 aequilibrium,意为“平衡、均衡状态”。整体含义即“哈代与温伯格提出的遗传频率平衡状态”。

相关词 Related Words

文学与著作 Literary Works

  • Hardy, G. H. (1908) Mendelian proportions in a mixed population(提出平衡思想的经典短文,常被视为该原理的来源之一)
  • Weinberg, W. (1908) 相关德文论文(独立提出同一结论,后与Hardy并称)
  • Hartl & Clark, Principles of Population Genetics(《群体遗传学原理》;系统讲解H-W平衡及偏离原因)
  • Daniel L. Hartl, A Primer of Population Genetics(入门教材中常以H-W平衡作为核心基准模型)
  • Pierce, Genetics: A Conceptual Approach(遗传学教材中常用于讲解基因型频率、随机交配与检验方法)
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