染色体可访问性直接控制着黄类生物合成,并间接调节大麻中的大麻素生产
Yuanchang Ma1, Xiuye Wei2,3, Weixin Zhou1
1Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China.
Frontiers in plant science
|February 4, 2026
概括
表观遗传调节会影响大麻的二次代谢产物. 增加的染色质可访问性驱动着黄类积累和大麻素分歧,为大麻提供了新的育种策略.
科学领域:
- 植物分子生物学 植物分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 大麻sativa L.研究研究.
背景情况:
- 麻 (大麻) 中的二次代谢物对制药和营养应用至关重要.
- 控制大麻中二次代谢物生物合成的表观遗传调节机制尚不清楚.
研究的目的:
- 为了研究二次代谢物生物合成的表观遗传调节在两个大麻品种有不同的三合体密度.
- 确定影响大麻素和黄素生产的关键遗传和表观遗传因素.
主要方法:
- 代谢学,转录学和ATAC-seq (使用测序测定转化酶可访问性染色体的测试) 的综合分析.
- 两种不同的大麻品种的花朵的比较概况.
- 生物信息分析用于识别差异积累代谢物 (DAM),差异表达基因 (DEG) 和不同的可访问性基因 (DAG).
主要成果:
- 两种品种之间观察到的代谢物,基因表达和染色质可访问性的显著差异.
- 在黄酸生物合成基因促进剂中增强的染色质可访问性与增加的黄酸积累相关.
- 与脂肪酸生物合成和三胞体发育相关的基因中的差异性染色质可访问性被确定为大麻素分歧的关键因素.
结论:
- 表观遗传修饰,特别是染色质可访问性,在调节大麻中二次代谢物生物合成方面发挥着重要作用.
- 这些发现提供了关于大麻素和黄素生产的分子基础的见解.
- 这项研究提供了潜在的分子标记物,用于培育具有强化大麻素和黄素含量的新大麻品种.
相关概念视频
Chromatin Packaging
22.2K
Each human somatic cell contains 6 billion base-pairs of DNA. Each base-pair is 0.34 nm long, which means that each diploid cell contains a staggering 2 meters of DNA. How is such a long DNA strand packed inside a nucleus measuring only 10 - 20 microns in diameter?
The chromatin
In combination with specialized DNA binding protein called Histones, the DNA double helix forms a compact DNA: protein complex called chromatin. The chromatin itself is further compacted into higher-order...
The chromatin
In combination with specialized DNA binding protein called Histones, the DNA double helix forms a compact DNA: protein complex called chromatin. The chromatin itself is further compacted into higher-order...
22.2K
Biosynthesis in Bacteria
675
Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
675
Biosynthesis of Polysaccharides
641
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
641
Biosynthesis of Lipids
594
Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
594
Spreading of Chromatin Modifications
9.5K
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
Writers
The writer...
9.5K
Inheritance of Chromatin Structures
7.6K
Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
7.6K


