V2EX paralogous

Paralogous

释义 Definition

paralogous(形容词):(生物信息学/进化生物学)指旁系同源的;描述两个或多个基因/蛋白质来自同一物种内的基因复制事件,因此彼此相关,但可能逐渐演化出不同功能。(常见相关名词:paralog 旁系同源基因)

发音 Pronunciation

/prls/

例句 Examples

Paralogous genes often have similar sequences.
旁系同源基因的序列通常相似。

After a genome duplication, paralogous proteins may diverge in expression patterns and acquire new functions, complicating the reconstruction of gene family trees.
在全基因组复制之后,旁系同源蛋白可能在表达模式上发生分化并获得新功能,从而使基因家族系统树的重建更加复杂。

词源 Etymology

来自 **para-**(“旁、并列、相近”)+ -logous(与 logos “关系/言说/学理”相关,在词中常表示“……的/具有……关系的”)。在进化基因组学语境中,用来强调“由复制而来、并列分支的同源关系”,与 orthologous(直系同源,常指不同物种因物种分化而对应的基因)相对。

相关词 Related Words

文学与作品 Literary Works

  • 《Molecular Biology of the Cell》Molecular Biology of the Cell,Alberts 等):在基因家族与进化章节常讨论旁系同源/直系同源的概念与比较方法。
  • 《Evolutionary Genomics and Proteomics》Evolutionary Genomics and Proteomics):在基因复制、功能分化与同源性推断部分使用 paralogous
  • 期刊论文(如 Nature / Science / Genome Research:有关基因家族扩张、全基因组复制(WGD)、以及同源关系注释的文章中常出现 paralogous(多见于方法与结果讨论部分)。
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