V2EX genetic map

Genetic Map

释义 Definition

遗传图谱 / 遗传连锁图:用来表示基因或遗传标记在染色体上的相对位置与顺序的图。它通常依据重组频率(基因在减数分裂中交换位置的概率)来估算距离,因此反映的是“遗传距离”,不一定等同于实际的物理长度。也常泛指某物种的遗传标记分布与关联的整体“地图”。(相关的另一概念是 physical map:物理图谱。)

发音 Pronunciation (IPA)

/dntk mp/

例句 Examples

A genetic map helps scientists locate genes linked to disease.
遗传图谱帮助科学家定位与疾病相关的基因。

Using recombination data, the researchers built a genetic map that revealed the order of several markers across the chromosome.
研究人员利用重组数据构建遗传图谱,揭示了多个标记在染色体上的排列顺序。

词源 Etymology

genetic 来自 gene(基因),其词根与希腊语 *gen-*(“出生、生成”)相关;map 源自中世纪拉丁语 mappa(“布、地图”)。合在一起,genetic map 字面意思是“基因的地图”,指用“可追踪的遗传标记与重组关系”来描绘染色体上的相对位置。

相关词 Related Words

文学与著作 Literary / Notable Works

  • Thomas H. Morgan, The Mechanism of Mendelian Heredity(1915):早期经典遗传学著作之一,讨论连锁与基因定位的思想背景(与“遗传图谱”概念密切相关)。
  • Ronald A. Fisher, The Genetical Theory of Natural Selection(1930):在群体遗传学框架下讨论遗传变异与选择,常涉及连锁与重组等与遗传图谱相关的基础概念。
  • James D. Watson et al., Molecular Biology of the Gene(多版经典教材):在遗传学与分子生物学章节中系统讲解遗传连锁、重组与遗传图谱。
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