基因金字塔用于促进植物生长和广泛的非生物应激耐受性
Guiqin Zhao1,2, Yu Liu1,3, Lei Li1,4
1Department of Genetics and Biochemistry, Clemson University, Clemson, SC, USA.
Plant biotechnology journal
|October 30, 2023
概括
在植物中组合了三种关键基因,AVP1,OsSIZ1和Fld,显著增强了植物的生长和对干旱和热等非生物压力的耐受性. 这种基因堆叠方法在各种环境中提供了卓越的性能.
科学领域:
- 植物生物技术 植物生物技术
- 分子遗传学 分子遗传学
- 农作物科学 农作物科学
背景情况:
- 无生物压力 (盐度,热量,干旱) 降低了作物产量和装饰品价值.
- 像AVP1,OsSIZ1和Fld这样的个体基因增强了植物的非生物应激耐受性.
- 基因工程为改善作物特征提供了策略.
研究的目的:
- 研究在爬行草中同时过度表达AVP1,OsSIZ1和Fld的协同效应.
- 评估这些基因对植物生长和耐压力的综合影响.
- 评估基因堆叠作为一种提高植物性能的方法.
主要方法:
- 与AVP1,OsSIZ1和Fld基因同时发生的爬行草的基因转换.
- 在正常和非生物压力条件下 (干旱,盐度,热量,营养缺乏) 对转基因 (TG) 植物的表型评估.
- 对TG植物生理,生化和基因表达变化的分析.
主要成果:
- 与野生类型和单基因TG相比,过度表达所有三种基因的TG植物显著改善了生长.
- 在三重基因TG中观察到对干旱,盐度,热量和营养饥饿的增强耐受性.
- 改变的生理特征和微调的应激反应基因表达与性能改善有关.
结论:
- AVP1, OsSIZ1 和 Fld 协同发挥作用,增强植物发育和应激反应.
- 基因堆叠是一种有效的策略,可以在不利条件下实现优越的植物性能.
- 这种方法对各种作物物种的基因工程有希望,以改善农业生产.
相关概念视频
01:59Plant Breeding and Biotechnology
19.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.0K
02:50Transgenic Plants
7.3K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
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...
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...
7.3K
00:53Transgenic Organisms
31.2K
Overview
31.2K
02:57Plant Tissue Culture
38.0K
Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
38.0K
01:25Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K