Context-dependent DNA methylation signatures in animal livestock.

IF 4.8 Q1 GENETICS & HEREDITY Environmental Epigenetics Pub Date : 2023-01-23 eCollection Date: 2023-01-01 DOI:10.1093/eep/dvad001
Geetha Venkatesh, Sina Tönges, Katharina Hanna, Yi Long Ng, Rose Whelan, Ranja Andriantsoa, Annika Lingenberg, Suki Roy, Sanjanaa Nagarajan, Steven Fong, Günter Raddatz, Florian Böhl, Frank Lyko
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Abstract

DNA methylation is an important epigenetic modification that is widely conserved across animal genomes. It is widely accepted that DNA methylation patterns can change in a context-dependent manner, including in response to changing environmental parameters. However, this phenomenon has not been analyzed in animal livestock yet, where it holds major potential for biomarker development. Building on the previous identification of population-specific DNA methylation in clonal marbled crayfish, we have now generated numerous base-resolution methylomes to analyze location-specific DNA methylation patterns. We also describe the time-dependent conversion of epigenetic signatures upon transfer from one environment to another. We further demonstrate production system-specific methylation signatures in shrimp, river-specific signatures in salmon and farm-specific signatures in chicken. Together, our findings provide a detailed resource for epigenetic variation in animal livestock and suggest the possibility for origin tracing of animal products by epigenetic fingerprinting.

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动物牲畜中与上下文相关的 DNA 甲基化特征。
DNA 甲基化是一种重要的表观遗传修饰,在动物基因组中广泛保守。人们普遍认为,DNA 甲基化模式会随着环境参数的变化而发生改变。然而,这种现象尚未在动物家畜中得到分析,而它在生物标志物开发方面具有重大潜力。基于之前在克隆大理石纹小龙虾中发现的种群特异性DNA甲基化,我们现在生成了大量碱基分辨率的甲基组,以分析特定位置的DNA甲基化模式。我们还描述了从一个环境转移到另一个环境时,表观遗传特征随时间发生的转换。我们进一步展示了虾的生产系统特异性甲基化特征、鲑鱼的河流特异性特征和鸡的农场特异性特征。总之,我们的研究结果为畜牧业中的表观遗传变异提供了一个详细的资源,并提出了通过表观遗传指纹追踪动物产品来源的可能性。
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来源期刊
Environmental Epigenetics
Environmental Epigenetics GENETICS & HEREDITY-
CiteScore
6.50
自引率
5.30%
发文量
0
审稿时长
17 weeks
期刊最新文献
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