在田间种植的梨树的叶子和果实组织中对转基因表达的intron和逆转换的影响
1Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 142290 Pushchino, Russia.
International journal of molecular sciences
|August 26, 2023
概括
这项对转基因梨树进行了14年的研究证实了稳定的基因表达和对记者和抵抗基因的内介增强. 在单个或双重转换的植物中没有观察到意外效应.
科学领域:
- 植物生物技术 植物生物技术
- 遗传学 遗传学 是一个
- 农业科学 农业科学
背景情况:
- 稳定的转基因表达对于转基因树来说至关重要.
- 转基因堆叠提供了特征组合,但有可能产生意外影响.
- 果树中转基因的长期稳定性和影响需要进行广泛的研究.
研究的目的:
- 评估uidA基因在转基因梨中的长期稳定性和表达.
- 为了研究基因表达的内部介导增强.
- 为了评估转基因稳定性和在转化和移植的梨树中意外的影响.
主要方法:
- 实地试验超过14年监测uidA在叶子和梨果部分的基因表达.
- 对β-glucuronidase (GUS) 活性和除草剂耐药性的分析.
- 高通量表型识别用于检测转化植物中的意想不到的影响.
- 移植实验,以评估蛋白质的运输.
主要成果:
- 稳定的uidA基因表达在14年内观察到,GUS活动每年变化但没有沉默.
- 在叶子和果实中,Intron显著增强了uidA的表达,大约是两倍.
- 最大uidA表达在种子中,其次是皮和脚,在纸中表达较少.
- 带有条形基因的转基因在没有叶子形态变化的情况下表现出长期的除草剂耐药性.
- 没有通过转基因梨的移植物观察到GUS蛋白质运输.
结论:
- 长期的实地试验表明,在各种环境条件下,梨树的转基因表达稳定.
- 内子有效地增强转基因木质植物中的基因表达.
- 转基因梨系没有表现出意外效应,支持它们的安全性和实用性.
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