相关实验视频
Updated: Jul 4, 2025

08:10
Environmentally Induced Heritable Changes in Flax
Published on: January 26, 2011
10.3K
不同的小麦基因与在不同的水和可用性下种植的谷物中遗传的自由素含量有关
Mélanie Lavoignat1,2, Cédric Cassan3,4, Pierre Pétriacq3,4
1Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont-Ferrand, France.
概括
以较低的自由黄素含量进行小麦育种是可以实现的,但需要多环境试验. 这对于减少小麦食品中有害烯胺的形成至关重要.
科学领域:
- 农业科学 农业科学
- 遗传学 遗传学是一种遗传学.
- 食品科学 食品科学 食品科学
背景情况:
- 小麦粒中的自由氨酸是加工食品中有害烯胺形成的前体.
- 了解阿斯巴拉金积累的遗传基础是开发更安全的食品的关键.
研究的目的:
- 探索控制小麦粒中自由阿斯巴拉金和相关氨基酸积累的遗传结构.
- 在不同的环境条件下识别与自由青素含量相关的定量特征位点 (QTL).
主要方法:
- 在不同的和水条件下对485种不同的小麦加入中的自由氨基酸含量进行表型分析.
- 加入的基因型化和全基因组关联研究 (GWAS) 使用单位和多位模型.
主要成果:
- 自由阿斯巴拉金含量高度遗传性,受到环境因素的影响,在高和缺水条件下观察到更高的水平.
- 在九个染色体上,GWAS确定了多个QTL用于自由阿斯巴拉金含量,每个染色体都对某些氨基酸和环境特异.
- 没有确定QTL与已知的氨基酸代谢基因共定位,这表明复杂的遗传控制.
结论:
- 与自由黄素含量相关的小麦QTL在不同的生长条件下有所不同.
- 环境因素显著影响阿斯巴拉金水平,使多环境实地试验对于培育低烯胺潜力小麦至关重要.
- 降低阿斯巴拉金含量的育种是可行的,但需要考虑遗传和环境相互作用的综合方法.
相关概念视频
Genome-wide Association Studies-GWAS
13.4K
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...
13.4K
Dihybrid Crosses
74.9K
Overview
74.9K
Key Elements for Plant Nutrition
18.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.7K

