全基因组关联分析确定了与大米 (Oryza sativa L.) 中的叶子滚动相关的自然等位基因变异
Dongryung Lee1,2, Byeong Yong Jeong3, Backki Kim1,2
1Department of Plant Bioscience, Pusan National University, Miryang 50463, Republic of Korea.
Annals of botany
|July 22, 2025
概括
研究人员确定了一种特定的遗传变异,与日本大米的亚轴叶滚动有关. 这一发现为通过分子育种改善大米植物结构和光合作用提供了目标.
科学领域:
- 遗传学 遗传学 是一个
- 植物生物学 植物生物学
- 农业科学 农业科学
背景情况:
- 在大米中滚动的叶子会影响植物的结构,捕捉光线和光合作用.
- 了解叶子滚动的遗传基础对于作物改进至关重要.
研究的目的:
- 为了确定在大米中滚动的适轴叶的遗传基础.
- 在多样化的米面板中利用全基因组关联研究 (GWAS).
主要方法:
- 在113个大米加入中使用150万个单核酸多态 (SNP) 进行了GWAS.
- 分析了人口结构,链接不平衡,哈普洛型模式和表达相关性.
- 验证的协会在一个额外的面板的日本杂交线.
主要成果:
- 在第1染色体上确定了一种日本特有的定量特征位点 (QTL),qALR1.
- 在两个候选基因上游的cis调节动机 (RAV1-B) 中定位了一个假定的因果SNP.
- 验证了在日本品种线上的SNP,并指出其在育种线上的丰富性表明了选择.
结论:
- 发现了一种特定于亚种的调节机制,用于在米中滚动的轴叶.
- 因果SNP可能会影响转录因子结合和基因调节,影响叶子形态.
- 提供了通过分子育种优化树冠架构和光合作用效率的目标.
关键词:
米树 (Oryza sativa) L L L 米树 (Oryza sativa) 是一个植物.这种cis-regulatory的动机.适合轴的叶子滚动全基因组关联研究研究.定量性特征位置 (loci loci) 是一个定量性特征位置.更多相关视频
11:33Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
Published on: October 14, 2022
1.7K
11:35Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
Published on: August 21, 2016
13.1K
相关概念视频
01:11Genome-wide Association Studies-GWAS
14.3K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
14.3K
02:16Light Acquisition
8.6K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.6K