相关实验视频
Updated: Jun 27, 2025
Agrobacterium-Mediated Virus-Induced Gene Silencing Assay In Cotton
Published on: August 20, 2011
确定与棉花Bt基因表达相关的关键模块和基因
Guiyuan Zhao1,2, Zhao Geng2, Jianguang Liu2
1State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Hebei Agricultural University, Baoding 071001, China.
表达Bacillus thuringiensis (Bt) 毒素的转基因棉花显示出可变的害虫耐药性. 一项研究确定了关键基因,包括MYC转录因子,影响棉花品种的Bt蛋白水平.
科学领域:
- 农业科学 农业科学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 转基因棉花表达Bacillus thuringiensis (Bt) 毒素提供了对昆虫的抵抗力.
- 在棉花品种和组织中,Bt毒素的有效性各不相同,因此需要进一步研究表达调节.
研究的目的:
- 调查转基因棉花中Bt蛋白表达的变化背后的分子机制.
- 识别与高,中等和低Bt蛋白表达水平相关的基因和途径.
主要方法:
- 评估了28种棉花品种的Bt蛋白表达,根据表达水平选择7种进行转录组分析.
- 利用权重基因共同表达网络分析 (WGCNA) 来识别与Bt蛋白表达相关的基因模块.
- 使用病毒诱导的基因沉默 (VIGS) 来验证候选枢纽基因的功能.
主要成果:
- 分别在高与低,中等与低,高与中等表达组中鉴定了342,318和965个差异表达基因.
- 发现了三种与Bt蛋白表达水平相关的显著基因模块.
- 证实了沉默MYC转录因子基因 (GhM_D11G1176) 显著降低了Bt蛋白表达.
结论:
- 这项研究阐明了影响转基因棉花Bt蛋白表达的关键遗传因素.
- 了解这些机制可以帮助优化转基因作物的害虫耐药性.
- GhM_D11G1176是调节棉花中Bt蛋白积累的关键基因.
更多相关视频
09:22A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses
Published on: January 25, 2018
10:40Comprehensive Workflow for the Genome-wide Identification and Expression Meta-analysis of the ATL E3 Ubiquitin Ligase Gene Family in Grapevine
Published on: December 22, 2017
相关概念视频
02:50Transgenic Plants
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
01:59Plant Breeding and Biotechnology