为了增加对米尼辛核污染的耐药性,进行了亲生选择
Rogelio Santiago1, Antonio J Ramos2, Ana Cao1
1Misión Biológica de Galicia (CSIC), Carballeira 8, Salcedo, 36143 Pontevedra, Spain.
Toxins
|July 28, 2023
概括
玉米育种计划开发了新的杂交品种来对抗富蒙尼辛污染. 虽然杂交品种本身的改善程度有限,但与商业品种相比,从它们衍生出的杂交品种表现出对Fusarium耳 (FER) 和fumonisin水平的增强抵抗力.
科学领域:
- 农业科学 农业科学
- 植物育种 植物育种
- 菌类学 菌类学是指菌类学.
背景情况:
- 玉米颗粒易受*Fusarium verticillioides*等生产烟素的真菌的影响,这对食品和料安全构成风险.
- 玉米育种是减少富蒙尼辛污染的关键策略,Fusarium耳 (FER) 作为一个强有力的指标特征.
研究的目的:
- 评估一项旨在开发抗富蒙尼辛污染的玉米同系品种 (EPFUM) 的血统选择计划的有效性.
- 评估EPFUM杂交品种及其衍生杂交品种是否与父系和商业杂交品种相比,对FER和fumonisin具有更好的耐药性,同时保持具有竞争力的谷物产量.
主要方法:
- 实施了一项血统选择计划,以开发具有对富蒙尼辛污染增强抵抗力的EPFUM杂交品种.
- 评估了EPFUM杂交品种,其父系,以及各种杂交品种 (包括EPFUM衍生品和商业杂交品种),以抵抗FER和fumonisin污染,以及谷物产量.
主要成果:
- 第二个周期的EPFUM杂交犬并没有显著地提高对其父系的抵抗力.
- 与商业混合动力相比,EPFUM衍生的混合动力对FER和fumonisin污染具有显著的抵抗力.
- 欧洲石生殖质对抗性基因具有前途;新的Reid × Lancaster杂交物将高抗性与竞争性产量相结合.
结论:
- 虽然EPFUM杂交品种的直接改善是温和的,但来自该计划的杂交品种在抵抗富蒙尼辛污染方面取得了实质性的收益.
- EPFUM混合动力为商业混合动力提供了可行的替代品,特别是白石混合动力EPFUM-4 × EP116,它提供了市场优势.
- 针对FER耐药性的育种努力在开发低尼辛污染的玉米方面是有效的,欧洲石和Reid × Lancaster背景是有希望的来源.
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