转基因大豆表达的Cry1Ab-Vip3A融合蛋白赋予了对虫害虫的广泛耐药性
Zhenzhi Pan1,2, Yanxiang Zhu1,2, Chaoyang Lin1
1Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
Plant cell reports
|March 25, 2025
概括
一种新的转基因大豆,CAL-16,表达一种融合Bt蛋白质,用于对类虫害的广泛耐药性. 这一事件显示出高效率和稳定性,对农学特征没有影响,为商业栽培铺平了道路.
科学领域:
- 农业科学 农业科学
- 生物技术是生物技术.
- 昆虫学 昆虫学是一门学科.
背景情况:
- 虫虫害在全球范围内造成大豆显著的产量损失.
- 现有的抗昆虫大豆品种面临着由于昆虫耐药性的演变而带来的挑战.
- 植物性杀虫蛋白 (Vips) 提供了一种新的作用模式来对抗类虫害.
研究的目的:
- 开发和描述一个转基因大豆事件 (CAL-16),表达Cry1Ab和Vip3A.的融合蛋白.
- 评估CAL-16对广泛的类虫害的疗效.
- 评估CAL-16.6的稳定性和农学性能.
主要方法:
- 转基因大豆事件CAL-16通过单拷贝T-DNA插入的发展.
- 在昆虫生物测试中,使用了关键类害虫的新生儿 (例如,Helicoverpa armigera,Spodoptera litura).
- 实地试验以评估对Leguminivora glycinivorella等害虫的耐药性,并评估农学特征.
主要成果:
- CAL-16显示了100%的死亡率对新生儿的五个主要的类鸟物种.
- 实地试验证实了对Leguminivora glycinivorella的优异耐药性.
- 通过12代人观察到融合蛋白的高和稳定的表达.
- 与非转基因对照组相比,在农学特征上没有发现显著差异.
结论:
- 转基因大豆事件CAL-16赋予了对主要类虫害的广泛耐药性.
- 该事件表现出高效率,稳定性和正常的农业性能.
- 在中国,CAL-16已经放松监管,预计将在商业上发布.
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