来自空间环境范围极端的熊蜂 (Bombus vosnesenskii) 种群的全基因组DNA甲基化模式
Sarthok Rasique Rahman1, Jeffrey D Lozier2
1Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL, USA. srahman7@ua.edu.
Scientific reports
|September 9, 2023
概括
黄蜂 (Bombus vosnesenskii) 的表观遗传变异,特别是DNA甲基化,可能有助于它们适应不同的环境. 这项研究绘制了热极端的人群中的甲基化模式.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 遗传学 遗传学 是一个
背景情况:
- 了解适应环境压力是预测物种对气候变化的反应的关键.
- 表观遗传变异,如DNA甲基化,越来越多地被认为是快速适应环境线索的促进者.
研究的目的:
- 在空间和热极端的Bombus vosnesenskii种群中调查遗传和表观遗传的多样性.
- 为了生成一个高分辨率的DNA甲基化在Bombus vosnesenskii的地图.
主要方法:
- 采用了全基因组和甲基组测序.
- 在两个来自不同环境 (温暖,低海拔与寒冷,高海拔) 的种群中分析了DNA甲基化模式.
- 双硫酸盐测序用于表征甲基化.
主要成果:
- 全球CpG甲基化低,高甲基化集中在基因体和低核酸多样性区域.
- 确定了2066个差异甲基化位,主要是北方人口中低甲基化位.
- 在外子和促进子区域中发现了差异化甲基化位点,这表明它在基因调节中的作用.
结论:
- 在不同的热和空间极端的Bombus vosnesenskii种群中,DNA甲基化模式有所不同.
- 基因体和调节区域中的甲基化可能在利基适应中发挥作用.
- 需要进一步的研究来探索DNA甲基化在大黄蜂适应中的功能作用.
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