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A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses
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与天然品种相比,转基因大豆品种表现出较少的转录基因变异.

Yan Long1, Wentao Xu2, Caiyue Liu1

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

GM crops & food
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概括

与自然变异相比,转基因大豆显示的转录基因变化最小. RNA测序显示转基因不会导致大豆种子组织中的大量基因表达变化.

关键词:
不同表达的基因.转基因大豆生产线的转基因大豆生产线非转基因大豆生产线的非转基因大豆大豆种子组织.转录组分析 转录组分析

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科学领域:

  • 植物生物技术 植物生物技术
  • 基因组学就是基因组学.
  • 分子生物学分子生物学

背景情况:

  • 转基因大豆对于食品和料至关重要,但转基因引发了食品安全问题.
  • 评估外来基因的意外影响对于评估转基因作物的安全性至关重要.
  • 高通量测序提供了一种直接方法来评估转录组变化.

研究的目的:

  • 用RNA测序来评估转基因大豆中的意外转录基因效应.
  • 为了比较基因表达特征在特定的大豆组织 (cotyledon,胚芽, hypocotyl,根) 之间转基因和非转基因线.
  • 提供关于大豆遗传修饰引起的基因层次差异的经验证据.

主要方法:

  • 在四个转基因和三个非转基因大豆种系上使用RNA测序进行转录基因分析.
  • 在单个大豆组织中对基因表达的差异分析:cotyledon,germ,hypocotyl和radicle.
  • 基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 对差异表达基因 (DEG) 的途径分析.

主要成果:

  • 在非转基因大豆品种中,共发现了3351种DEG.
  • 对转基因菌株及其非转基因亲属菌株进行比较,发现了1836至4551个DEG.
  • 转基因基因分析显示,非转基因品种 (199) 的类别比转基因和非转基因品种 (166) 的类别更多;KEGG途径分析显示,两种比较的结果相似.

结论:

  • 与自然变异相比,大豆中的转基因似乎不会引起巨大的转录基因变化.
  • RNA测序对于评估特定大豆组织中的基因表达差异是有效的.
  • 该研究提供了基因组级数据,支持对转基因大豆的安全性评估.