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The complex role of genetic background in shaping the effects of spontaneous and induced mutations
Yeast ( IF 2.2 ) Pub Date : 2020-10-30 , DOI: 10.1002/yea.3530
Ilan Goldstein 1 , Ian M Ehrenreich 1
Affiliation  

Spontaneous and induced mutations frequently show different phenotypic effects across genetically distinct individuals. It is generally appreciated that these background effects mainly result from genetic interactions between the mutations and segregating loci. However, the architectures and molecular bases of these genetic interactions are not well understood. Recent work in a number of model organisms has tried to advance knowledge of background effects both by using large‐scale screens to find mutations that exhibit this phenomenon and by identifying the specific loci that are involved. Here, we review this body of research, emphasizing in particular the insights it provides into both the prevalence of background effects across different mutations and the mechanisms that cause these background effects.

中文翻译:

遗传背景在塑造自发和诱导突变的影响中的复杂作用

自发性和诱导性突变经常在基因不同的个体中表现出不同的表型效应。人们普遍认为,这些背景效应主要是由突变和分离基因座之间的遗传相互作用引起的。然而,这些遗传相互作用的结构和分子基础尚不清楚。最近在许多模式生物中的工作试图通过使用大规模筛选来发现表现出这种现象的突变和通过识别所涉及的特定位点来提高对背景效应的认识。在这里,我们回顾了这一研究主体,特别强调了它对不同突变中背景效应的普遍性以及导致这些背景效应的机制提供的见解。
更新日期:2020-10-30
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