在全球分布的伦巴第树中,全基因组甲基组稳定性和亲属效应
An Vanden Broeck1, Tim Meese2, Pieter Verschelde3
1Research Institute for Nature and Forest (INBO), Geraardsbergen, Belgium. An.vandenbroeck@inbo.be.
BMC biology
|February 5, 2024
概括
伦巴第甲基组在CG环境中稳定,不受父母气候的影响. 季节性变化在CHH环境中发生,父母对芽的影响最小,突出表型可塑性.
科学领域:
- 植物表观遗传学 植物表观遗传学
- 树木多年生甲基组动力学
- 环境对植物表观遗传学的影响
背景情况:
- 植物表观基因组研究正在增加,但长寿木质多年生植物中的甲基组塑造力仍然不明.
- 伦巴第 (Populus nigra) 作为一个模型来调查环境历史对甲基组的影响.
研究的目的:
- 调查伦巴第树跨季节和世代的甲基组变异性.
- 为了确定甲基组模式是否与父母气候相关.
- 评估父母环境对后代表型的持续转移效应.
主要方法:
- 在CG和CHH背景下对季节和克隆世代的甲基组变异性的分析.
- 甲基组模式和父母气候之间的相关性分析.
- 使用线性混合效应模型对芽定时的表型分析.
主要成果:
- 在CG背景下跨代稳定的甲基组;在CHH背景下观察到的季节性动态.
- 在甲基组模式和父母气候之间没有发现显著的相关性.
- 检测到一个弱,短期的父母对芽设置时间的影响,但与环境影响相比可以忽略不计.
结论:
- 伦巴第的CG-context甲基组是稳定的,并受到随机过程的影响,作为祖先和近期环境历史的生物标志物很有用.
- 在CHH环境中的甲基化模式表现出季节性可塑性.
- 伦巴第树表现出高的表型可塑性,使其能够适应各种温带环境.
关键词:
黑色的树是一个黑色的树.芽的现象学 的现象学通过DNA甲基化.表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.这是一棵树.黑色的人民 (Populus nigra) 是一个黑色的植物.跨世代的塑性 跨世代的塑性更多相关视频
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