卡塔姆斯丁克托里乌斯L.基因组序列提供了关于不和脂肪酸合成的见解
Yuanyuan Dong1, Xiaojie Wang2, Naveed Ahmad1
1Engineering Research Center of Bioreactor and Pharmaceutical Development, College of Life Sciences, Ministry of Education, Jilin Agricultural University, Changchun, 130118, China.
BMC genomics
|May 23, 2024
概括
我们向您介绍了首个花 (Carthamus tinctorius L.) 的基因组组合,这是一个重要的油作物. 这项研究确定了关键基因,脂肪酸脱酶2 (FAD2) 和脂肪酸脱酶6 (FAD6),对于改善油质至关重要.
科学领域:
- 植物基因组学 植物基因组学
- 农作物科学 农作物科学
- 分子生物学分子生物学
背景情况:
- 红杉 (Carthamus tinctorius L.) 是一种重要的食用油作物,其关键特征的遗传基础尚不清楚.
- 了解油含量,抗压力和开花时间的遗传基础对于作物改进至关重要.
研究的目的:
- 为了呈现一个高质量的基因组组装化红杉 (C. tinctorius品种 Jihong01).
- 确定参与油脂生物合成的基因和途径,特别是酸 (LA) 积累.
- 为未来的三花繁殖计划提供基因组资源.
主要方法:
- 使用牛津纳米孔技术 (ONT) 和BGI-SEQ500的综合测序.
- 基因组组装和注释. 基因组组装和注释.
- 在五个种子发育阶段进行比较基因组学和差异基因表达分析.
主要成果:
- 一个1,061.1 Mb的基因组组合,包含32,379个蛋白质编码基因,97.71%的功能注释.
- 鉴定了近期在红杉的进化历史上发生的一次全基因组复制 (WGD) 事件.
- 揭示了脂肪酸脱酶2 (FAD2) 和脂肪酸脱酶6 (FAD6) 在酸生物合成和积累中的关键作用.
结论:
- 基因组组合为石灰花研究提供了宝贵的资源.
- 脂肪酸脱酶基因 (FAD2和FAD6) 是红杉油质的关键调节者.
- 这些发现为加强育种计划提供了见解,以改善三花油的质量特征.
相关概念视频
Overview of Fatty Acid Metabolism
30.5K
Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
30.5K
Carboxylic Acids to Esters: Acid-Catalyzed (Fischer) Esterification Mechanism
7.8K
Carboxylic acids react with alcohols to yield esters via an acid-catalyzed condensation reaction called Fischer esterification. This is a nucleophilic acyl substitution reaction that proceeds via a tetrahedral intermediate, where a water molecule is eliminated as the leaving group.
7.8K
Carboxylic Acids to Esters: Acid-Catalyzed (Fischer) Esterification Overview
17.9K
The Fischer esterification reaction was developed by the German chemist Emil Fischer in 1895. It is a condensation reaction between carboxylic acids and alcohols in an acidic medium to give esters and water.
17.9K
Esters to Carboxylic Acids: Saponification
4.4K
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
4.4K
Structure of Lipids
87.9K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
87.9K
Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis
2.8K
Hydrolysis of esters under acidic conditions proceeds through a nucleophilic acyl substitution. In the presence of excess water, the reaction proceeds in a reversible manner, forming carboxylic acids and alcohols.
During hydrolysis, the ester is first activated towards nucleophilic attack through the protonation of the carboxyl oxygen atom by the acid catalyst. The protonation makes the ester carbonyl carbon more electrophilic. In the next step, water acts as a nucleophile and adds to the...
During hydrolysis, the ester is first activated towards nucleophilic attack through the protonation of the carboxyl oxygen atom by the acid catalyst. The protonation makes the ester carbonyl carbon more electrophilic. In the next step, water acts as a nucleophile and adds to the...
2.8K


