基于高密度遗传图的谷谷物特征的QTL分析
Ning Cao1, Yanqing Ding1, Jianxia Xu1
1Guizhou Institute of Upland Crops, Guizhou Academy of Agricultural Sciences, Guiyang, 550006, China.
Journal of applied genetics
|September 21, 2024
概括
这项研究使用超级-GBS基因型定型确定了47个 Sorghum 谷物特征的定量特征位置 (QTL). 发现了六个与大米谷物发育基因同源的候选基因,有助于对发展的遗传理解.
科学领域:
- 植物遗传学 植物遗传学
- 农业学是一种农业学.
- 分子生物学分子生物学
背景情况:
- 麦的谷物特征显著影响作物产量,对酒造至关重要.
- 了解这些特征的遗传控制对于改善发展至关重要.
研究的目的:
- 为了确定控制谷谷的关键特征的定量特征位点 (QTL).
- 为了发现参与谷粒发育的候选基因.
主要方法:
- 使用超级GBS技术对205个重组杂交品种 (RIL) 的基因定型.
- 在中国的多个环境中对谷物特征的表型评估.
- 包括复合间隔映射 (ICIM) 用于QTL分析.
主要成果:
- 确定了47个千粒重量,千粒长度,千粒宽度和10个染色体的长度宽度比的QTL.
- 在多个特征和环境中重复检测到20个显著的QTL.
- 在QTL置信区间内定位了6个候选基因,与已知的大米谷物发育基因相同.
结论:
- 已识别的QTL和候选基因为了解麦谷物发育遗传学提供了基础.
- 对这些候选基因的进一步研究将有助于通过标记器辅助的选择来改善子品种.
更多相关视频
11:37QTL Mapping and CRISPR/Cas9 Editing to Identify a Drug Resistance Gene in Toxoplasma gondii
Published on: June 22, 2017
16.2K
10:08Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
17.0K
相关概念视频
02:27Trihybrid Crosses
23.2K
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
23.2K
02:46Chi-square Analysis
38.1K
The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
38.1K