在Sorghum bicolor植物颜色的全基因组关联研究
Lihua Wang1,2, Wenmiao Tu1,2, Peng Jin1,2
1College of Agriculture, Anhui Science and Technology University, Fengyang, Anhui, China.
Frontiers in plant science
|April 25, 2024
概括
使用全基因组关联映射研究了与重要特征相关的植物颜色. 确定了8个位点,其中候选基因和SNP标记物为繁殖应用提供了潜力.
科学领域:
- 植物遗传学 植物遗传学
- 农业科学 农业科学
- 分子生物学分子生物学
背景情况:
- 植物颜色 (叶/叶子颜色) 与各种农学特征有关,包括种子颜色,素和含量以及抗病能力.
- 了解植物颜色的遗传基础对于改进至关重要.
研究的目的:
- 为了评估米迷你核心集合中的植物颜色变化.
- 执行全基因组关联映射 (GWAS),以确定控制植物颜色的遗传位置.
- 识别植物颜色发育的候选基因和SNP标记物.
主要方法:
- 在三个环境中对叶子盖/叶子颜色 (棕色,红色,紫色) 的表型评估.
- 全基因组关联映射 (GWAS) 使用6,094,317个SNP标记.
- 对链接不平衡 (LD) 和候选基因识别的分析.
主要成果:
- 与植物颜色相关的八个位点在染色体1,2,4,5,6和9上被映射出来.
- 在这些位置内确定了候选基因,包括衰老调节器.
- SNP标记可以区分色和红色/紫色的加入,但不能区分红色和紫色.
结论:
- 已识别的位点和候选基因提供了对植物颜色的遗传结构的见解.
- 这些发现可以促进具有理想植物颜色和相关特征的 Sorghum 品种的分子育种.
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