对比生理学和转录组分析揭示了果根源中的潜在途径和特定基因参与水耐受性的潜在途径和特定基因
Kunxi Zhang1, Xiaofei Chen1, Penghao Yuan1
1College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China.
International journal of molecular sciences
|June 10, 2023
概括
果根茎对积水压力表现出不同的反应. 敏感于浸水的M. toringoides比耐受的M. hupehensis表现出更严重的叶子损伤和更高的乙烯生产,这表明黄和激素信号作用在耐受性中.
科学领域:
- 植物科学 植物科学
- 农业 农业 农业 农业
- 压力生理学 压力生理学
背景情况:
- 浸水压力严重影响中国的果种植,导致叶子变黄,产量减少.
- 对于果对水浸积反应的精确分子机制仍然不太了解.
研究的目的:
- 为了研究水浸耐受性 (M. hupehensis) 和敏感性 (M. toringoides) 果根茎在水浸压力下的生理和转录组差异.
- 为了确定关键的基因和途径,涉及到果的水浸耐受性.
主要方法:
- 生理学分析包括叶子化,电解质泄漏和口腔行为.
- 使用RNA测序 (RNA-seq) 来识别差异表达基因 (DEGs) 的转录组分析.
主要成果:
- 与M. hupehensis. 相比,M. toringoides表现出更严重的叶子化,增加的氧化应激 (超氧化基,H2O2) 和口腔关闭.
- 在M. toringoides中观察到水浸时,乙烯的产量增加.
- RNA-seq确定了13,913种常见的DEG,在黄类生物合成和激素信号通路中显著丰富.
结论:
- 黄类生物合成和激素信号通路对果根茎的浸水耐受性可能至关重要.
- 鉴定的基因为未来的研究和耐水浸的果品种的分子育种提供了目标.
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