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通过多omics分析揭示了Acer griseum中叶子颜色变化的生理和分子机制
Huizhen Fan1, Huimin Liao1, Yingxue Shen1
1College of Landscape Architecture and Art, Northwest A&F University (NWAFU), 712100, Yangling, China.
Plant physiology and biochemistry : PPB
|October 20, 2024
概括
临灭绝的纸皮 (Acer griseum) 的秋季红色叶子颜色是由于叶绿素的减少和酸的增加,特别是酸-3,5-O-二甲化物. 关键的转录因子调节这些变化,为育种计划提供了洞察力.
科学领域:
- 植物生理学 植物生理学
- 分子生物学分子生物学
- 园艺园艺 园艺园艺
背景情况:
- 纸皮 (Acer griseum) 是一个临灭绝的中国特有植物,有装饰性的红色秋叶.
- 叶子颜色的变化对于园林树的美学至关重要,但A. griseum的机制还未得到充分研究.
研究的目的:
- 为了调查Acer griseum叶子颜色变化背后的生理和分子机制.
- 为了确定关键的代谢物和参与从绿叶转变为红叶的调节因素.
主要方法:
- 生理学测试用于监测色素变化.
- 转录分析以评估基因表达.
- 代谢学来量化安东基亚尼丁的积累.
- 代谢物和转录因子之间的相关性分析.
主要成果:
- 叶绿素和胡卜素水平下降,而氨酸增加,最显著的是从绿色到半红色的阶段.
- 鉴定出氨-3,5-O-二甲化物是导致叶子变红的主要氨.
- 十二个转录因子与安托西亚宁生物合成基因和代谢物有显著的相关性.
结论:
- 这项研究阐明了Paperbark树中红色秋季叶子颜色的生理和分子基础.
- 氨-3,5-O-二糖化物和特定的转录因子是Acer griseum的叶子颜色的关键因素.
- 这些发现为遗传育种和改善Acer griseum品种提供了有价值的数据.
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