将光合作用和产量联系起来,揭示了在爬山豆种植群中提高光效率的策略
Beat Keller1,2, Jonatan Soto3, Angelina Steier4
1Crop Science, Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland.
Journal of experimental botany
|October 25, 2023
概括
测量爬山豆的光合作用效率 (Fq'/Fm') 显示了与生物质和产量的遗传联系. 这种选方法加快了选择高产作物品种的速度.
科学领域:
- 植物生理学 植物生理学
- 农作物科学 农作物科学
- 遗传学 是一个遗传学.
背景情况:
- 光合作用对于植物生长,生物质和产量至关重要.
- 光合成效率 (Fq'/Fm') 随着环境条件的变化而波动,例如光强度 (PPFR).
- 在动态现场条件下,量化能量捕获和转化为生物质是复杂的.
研究的目的:
- 调查光合作用效率的遗传变异对爬山豆 (Phaseolus vulgaris L.) 生物质和产量的影响.
- 评估Fq'/Fm'对波动PPFR (ResponseG:PPFR) 的反应与植物生产率之间的相关性.
- 评估现象数据与基因组数据在新环境中的产量预测能力.
主要方法:
- 在温室和实地试验中,在波动的PPFR下使用叶绿素光表型化来监测Fq'/Fm'.
- 相关的季节性响应G:PPFR与178个爬豆线的生物质和产量数据.
- 对不同生长条件的产量进行现象和基因组预测模型的比较.
主要成果:
- 在ResponseG:PPFR和生物质 (0.33-0.35) 和产量 (0.22-0.31) 之间发现了显著的相关性.
- 在四项试验中,现象性产量预测在新环境中超过了基因组预测.
- 9号染色体上的单核酸多态与ResponseG:PPFR有关,该多态基因位于质体甲状腺体形成的基因附近.
结论:
- 光合成效率选是识别作物育种中高产潜力的有价值的工具.
- 了解光合作用对波动光的反应的遗传控制可以提高作物表现.
- 现象数据在新环境中为作物产量提供了卓越的预测准确性.
相关概念视频
Light Acquisition
8.5K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.5K
The Calvin Benson Cycle
4.6K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.6K
Plant 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
Photoreceptors and Plant Responses to Light
20.4K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.4K
Monohybrid Crosses
230.2K
Overview
230.2K


