集成的多态学揭示了DAM介导的植物激素调节网络,驱动"混合"梨中的芽眠
Ke-Liang Lyu1, Shao-Min Zeng1, Xin-Zhong Huang1
1Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
Plants (Basel, Switzerland)
|July 30, 2025
概括
全球变暖通过减少冬季冷却影响梨产量. 这项研究揭示了关键的基因和植物激素,这些基因和植物激素调节了低冷梨品种的芽休眠期,为改善水果生产提供了洞察力.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 全球变暖导致冬季变暖,导致像梨 (Pyrus pyrifolia) 这样的果树冬季冷却不足.
- 冬季冷却不足会破坏花发育,降低水果产量,特别是在像中国南部这样的地区.
- 了解芽休眠调节对于在不断变化的气候条件下维持梨子生产至关重要.
研究的目的:
- 探索调节低冷梨品种"Mixue"的芽休眠的分子机制.
- 确定关键的植物激素,基因和参与休眠进展的调节网络.
- 为控制梨种植中芽休眠期提供理论框架.
主要方法:
- 综合的多omics分析,包括向的植物激素代谢学,全长的转录学和蛋白质学.
- 对差异丰富的代谢物,蛋白质和基因进行比较分析.
- 一个休眠相关的转录调节网络的构建,以休眠相关的MADS-box (DAM) 基因为中心.
主要成果:
- 确定了30种不同丰富的植物激素代谢物,2597种不同表达的蛋白质和7722种不同表达的基因.
- 发现了五个与休眠相关的MADS-box (DAM) 基因家族成员参与休眠.
- 揭示了一种涉及RVE6,DAM和COL8的新型调节途径,并确定了具有与DAM基因潜在的cis调节相互作用的lncRNA.
结论:
- 这项研究阐明了低冷梨品种中芽休眠的复杂分子调节网络.
- DAM基因通过与植物激素信号通路 (ABA,GA,SA) 相互作用,在休眠状态中发挥中心作用.
- 识别的监管网络和新的途径为开发策略提供了洞察力,以管理芽休眠期并提高梨的产量.
相关概念视频
Gene Regulation During Sporulation
78
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
78
Regulation of Transpiration by Stomata
29.1K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
29.1K
Plant Hormones
24.8K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
24.8K
Biological Clocks and Seasonal Responses
38.5K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
38.5K
Fruit Development, Structure, and Function
23.0K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
23.0K
Adaptations that Reduce Water Loss
26.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
26.3K


