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堆叠育种对具有草甘耐受性的转基因大米的甲基组和转录组概况的影响

Xujing Wang^1,2, Shance Niu^3,4, Jiangtao Yang^1,2

¹Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.

|June 28, 2023

概括

与基因转换相比,堆叠的转基因大米育种对基因表达和DNA甲基化的影响很小. 这项研究为评估中国堆叠转基因作物的安全性提供了关键数据.

科学领域:

农业科学农业科学
遗传学是一个遗传学.
生物技术是生物技术.

背景情况:

基因相互作用是堆叠的转基因作物 (GM) 安全性的关键问题.
与生物信息学相结合的Omics技术为评估转基因作物的意外影响提供了有价值的工具.

研究的目的:

用转录组学和甲基组学研究堆叠的转基因大米育种的潜在影响.
为中国堆叠转基因作物的安全评估战略提供科学数据.

主要方法:

利用转录组学和甲基组学来对堆叠的转基因大米 (En-12 × Ec-26) 进行分子分析.
在堆叠大米和其父系之间分析了差异甲基化区域 (DMR) 和差异表达基因 (DEG).
检查了神基酸代谢中的基因表达和甲基化模式.

主要成果:

堆叠繁殖对DNA甲基化的影响比遗传转换要小.
与其父母相比,堆叠大米表现出明显较少的DEG,并且没有检测到任何意外的新基因.
虽然在石基胺酸代谢中没有发现基因表达的差异,但在堆叠的米和其父母之间确诊了一些DMR.

结论:

堆叠繁殖对基因表达和DNA甲基化的影响比基因转换的影响要少.
这些发现支持堆叠转基因大米品种En-12 × Ec-26的安全性.
这项研究为评估中国堆叠转基因作物的安全性提供了重要的科学数据.

关键词:

基因相互作用基因相互作用甲基组组是指甲基组组中的一种.堆叠繁殖繁殖堆叠繁殖文字转录学 (Transcriptomics) 是一个学科.意想不到的影响.

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