有效的单核酸多态性标记器辅助的选择对豆在豆中的
Patricia Castro1, Cristina Caballo2, Alejandro Carmona1
1ETSIAM-Dpto. Genética, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
Plants (Basel, Switzerland)
|February 10, 2024
概括
这项研究验证了SNP标记物对豆的Fusarium wilt (Foc5) 耐药性. 这些标记物可靠地在繁殖早期识别出耐药品种,提高效率并降低成本.
科学领域:
- 植物病理学 植物病理学
- 遗传学 是一个遗传学.
- 农业科学 农业科学
背景情况:
- 虫,是由虫 (Fusarium oxysporum f. sp.) 引起的 ciceri (Foc),是全球主要的小病.
- 种族5 (Foc5) 在地中海盆地构成最严重的威胁,需要有效的抵抗策略.
- 遗传标记可以加速疾病耐药性的育种计划.
研究的目的:
- 验证一组六个SNP标记物对豆中Fusarium wilt Race 5 (Foc5) 的耐药性进行验证.
- 评估这些标记在选择Foc5耐药小在育种计划中的有用性.
- 为了确定潜在的基因,涉及到小对Fusarium wilt.耐药性.
主要方法:
- 在一个多样化的小组中验证了六个先前映射的SNP标记.
- 豆系的表型化,以检测它们对虫的耐药性.
- 在先前研究的杂交品种中分析标志物-表型相关性.
- 位于验证的SNP标记块内的基因的功能注释.
主要成果:
- 在评估的植物材料中,在SNP标记单元型和Foc5耐药性表型之间观察到100%的一致性.
- 在一个由67个同系系组成的单独小组中,65.8%的表型和复型对Fusarium变反应的表型完全一致.
- 功能注释确定了与"对刺激的反应"类别相关的SNP块内的几个基因,这表明它在抵抗中发挥了作用.
结论:
- 经过验证的SNP标记器是可靠的工具,用于早期选择Fusarium耐枯的小种系.
- 实施这些标记物可以显著降低育种成本,并简化其他特征评估材料的处理.
- 这些已识别的基因提供了对豆对Fusarium wilt.耐药性的基础分子机制的见解.
相关概念视频
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Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
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01:13Multiple Comparison Tests
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