V2EX population genetics

Population Genetics

释义 Definition

群体遗传学:研究一个物种的不同群体中基因(等位基因)频率如何随时间变化的学科,重点关注自然选择、遗传漂变、基因流动、突变、非随机交配等因素对遗传变异的影响。(也常用于解释进化过程与群体差异的形成。)

发音 Pronunciation

/ppjlen dntks/

例句 Examples

Population genetics helps scientists understand why some traits become common over time.
群体遗传学帮助科学家理解为什么某些性状会随着时间变得更常见。

By combining population genetics with genomic data, researchers can infer past migrations and detect signals of natural selection.
通过将群体遗传学与基因组数据结合,研究者可以推断过去的迁徙历史,并检测自然选择的信号。

词源 Etymology

Population”源自拉丁语 populus(人民、群体),强调“由许多个体组成的整体”;“Genetics”来自“gene(基因)”一词的学术化用法,相关词根与希腊语 *gen-*(出生、产生)有关。合起来,“population genetics”字面意思就是“研究群体层面的遗传”的学科名称,20世纪随着进化论与遗传学结合而成为核心领域。

相词 Related Words

文学与名著中的用例 Literary Works

  • R. A. Fisher:《The Genetical Theory of Natural Selection》(1930)
  • Sewall Wright:多篇奠基性论文(如关于遗传漂变与适应景观的研究,20世纪30年代起)
  • J. B. S. Haldane:多篇关于选择与群体遗传模型的经典论文(20世纪2030年代)
  • Theodosius Dobzhansky:《Genetics and the Origin of Species》(1937)
  • Daniel L. Hartl & Andrew G. Clark:《Principles of Population Genetics》(多版教材)
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