V2EX single-nucleotide variant

Single-nucleotide Variant

释义 Definition(中文)

单核苷酸变异:指基因组中某个特定位点发生的单个核苷酸(A/T/C/G)的改变(替换最常见),属于常见的遗传变异类型,常缩写为 SNV。在群体中较常见时也常被归入(或与)SNP(单核苷酸多态性)相关讨论(两者在使用语境上有时会区分:SNV更中性,SNP强调群体频率)。

发音 Pronunciation(IPA)

/sl nuklitad vrint/

例句 Examples

A single-nucleotide variant can change how a gene works.
单核苷酸变异可能会改变基因的功能方式。

Researchers compared thousands of genomes to identify single-nucleotide variants associated with disease risk.
研究人员比较了数千个基因组,以识别与疾病风险相关的单核苷酸变异。

词源 Etymology(中文)

该术语由三部分构成:**single-**(单个)+ nucleotide(核苷酸)+ variant(变体/变异)。随着基因测序技术的发展,遗传学与基因组学需要精确描述“在单一碱基层面发生的差异”,因此形成并广泛使用“single-nucleotide variant”这一表。

相关词 Related Words

文学与作品 Literary Works(出现语境)

  • Molecular Biology of the Cell(《细胞的分子生物学》)在基因变异与基因组分析相关章节中常见该类术语。
  • Human Molecular Genetics(《人类分子遗传学》)讨论遗传变异(含SNV/SNP)与疾病关联分析时常出现。
  • Genomes(T. A. Brown)介绍基因组结构与变异类型时会涉及单核苷酸层面的变异概念。
  • The 1000 Genomes Project 相关论文(如 Nature 发表的项目成果文章)在群体基因组变异目录与分析中频繁使用 SNV。
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