鉴定与种苗结耐受性相关的基因组区域 在 Sorghum 中
Niegel La Borde1, Ismail Dweikat1
1Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583-0915, USA.
Genes
|December 23, 2023
概括
这项研究确定了 (Sorghum bicolor) 耐的基因组区域,这对于提高作物产量至关重要. 这些发现有助于通过标记器辅助育种来开发耐品种.
科学领域:
- 植物遗传学 植物遗传学
- 农业学是一种农业学.
- 农作物科学 农作物科学
背景情况:
- 双色是全球重要的谷物作物.
- 易受冷却和结的影响,影响产量.
- 早期的春季对种植构成重大威胁.
研究的目的:
- 确定与幼苗阶段耐受性相关的基因组区域.
- 开发一个室内选择协议,以防结.
- 研究冷耐受性的遗传基础及其与发育特征的相关性.
主要方法:
- 利用了两种来自耐寒和耐寒交叉的复合同血统 (RIL) 种群.
- 采用基因型测序 (GBS) 进行单核酸多态性 (SNP) 评估.
- 在受控结条件下构建了链接地图,并进行了定量性质位点 (QTL) 地图绘制.
主要成果:
- 在两个RIL群体中确定了6个QTL赋予对结温度的耐受性.
- 在C1群体中有一种QTL和在C2群体中四种QTL解释了显著的表型变异 (17.75-98%).
- 在低温压力下,proline叶的含量增加.
结论:
- 确定了提高土结耐受性的候选QTLs.
- 这些QTL可以用于标记器辅助育种,基因组选择和基因工程,以开发改进的品种.
关键词:
在 QTL 时段,你会得到 QTL.Sorghum 双色球是一种多彩的植物.普罗林是什么意思 普罗林是什么意思压力耐受性 耐压力耐受性甜蜜的土糖 (Sweet Sorghum) 是一种葡萄制品.更多相关视频
相关概念视频
02:45Responses to Heat and Cold Stress
13.5K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.5K
02:02Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
01:57Adaptations that Reduce Water Loss
25.6K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.6K
02:22Introduction to Plant Diversity
44.7K
From Water to Land
44.7K