逆交调节了来自精英玉米系的安东素颜色"维他玛"系的代谢概况
Héctor Arturo Peniche-Pavía1,2, Tzitziki González-Rodríguez1,3, Axel Tiessen1
1Cinvestav Unidad Irapuato and UGA-Langebio Irapuato, Km. 9.6 Libramiento Norte Carr. Irapuato-León, 36824, Irapuato, Gto., Mexico.
Plant foods for human nutrition (Dordrecht, Netherlands)
|February 9, 2024
概括
颜色氨酸玉米线 (VMLs) 已开发出来,但与原始线相比,其代谢概况有所变化. 观察到安东素积累,但其他特征,如QPM并非始终继承,这表明标记器辅助繁殖.
科学领域:
- 农业科学 农业科学
- 植物育种 植物育种
- 生物化学 生物化学
背景情况:
- 维他米色线 (VMLs) 是通过将有色素的阿勒素特征引入国际玉米和小麦改进中心 (CIMMYT) 的玉米线 (CMLs) 来创建的.
- 了解这些VML中的代谢转变对于有针对性的育种策略至关重要.
研究的目的:
- 进行VML及其母CML的全面化学表征.
- 评估新陈代谢差异,包括胡卜素特征,安氨酸和玉米质量蛋白质 (QPM) 特征.
主要方法:
- 直接输注质谱 (DIMS) 用于代谢分析.
- 胡卜素概况和总安东素含量 (TAC) 的确定.
- 生物化学评估QPM内的特征.
主要成果:
- 大多数VML患者表现出增加的六和三蛋白含量.
- 胡卜素的形状各不相同,一些VMLs显示β-cryptoxanthin减少,一个显示增加.
- 颜色色素VMLs并不总是继承QPM特征;安托素积累是主要的一致的代谢变化.
结论:
- VMLs的代谢概况与其母CMLs不同,主要是因安东素的积累而异.
- QPM特征与有色素的aleurone特征没有可靠地转移.
- 对于未来的玉米育种计划,建议使用遗传或代谢标记,而不是视觉特征.
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