相关实验视频

Updated: Jan 8, 2026

Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Published on: July 16, 2019

染色体可访问性和TaSCR-TaLBD17电路塑造了小麦的基因型再生能力

Xiao Min Bie¹, Yuan Cao², Menglu Li¹

¹State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China.

|December 18, 2025

概括

小麦的转化受到基因型依赖再生的阻碍. 这项研究确定了TaSCR-TaLBD17调节级联作为提高反抗性小麦品种再生效率的关键因素.

科学领域:

植物分子生物学植物分子生物学
农业生物技术农业生物技术
遗传学是一个遗传学.

背景情况:

小麦转化效率受到基因型特定的再生能力的限制,特别是在精英但固的品种中.
了解再生分歧背后的分子机制对于改进作物改良策略至关重要.

研究的目的:

为了阐明再生的分子基础,可再生和反抗性小麦品种之间的再生差异.
确定参与小麦再生的关键调节者和途径.

主要方法:

可再生 (Fielder) 和反抗性 (JiMai22) 小麦品种的比较转录基因分析.
对染色质可访问性动态和转录性调节网络 (TRN) 的分析.
已识别的调节基因的功能测定,包括TaSCR和TaLBD17.

主要成果:

可再生品种Fielder显示出动态转录重编程和染色质重塑,激活形态调节器 (TaSCR,TaWOX5,TaLBD17).
反抗性品种JiMai22表现出有限的染色质变化和转录停滞,诱导了应激反应途径.
菲尔德的一个复杂的,以再生为重点的TRN,富含AP2,Dof和GRAS转录因子,将TaSCR确定为一个关键的调节器.

结论:

TaSCR-TaLBD17监管级联显著提高了不同小麦基因型的转化效率.
这些发现提供了一个分子框架,以克服反抗性小麦品种的转化障碍.
这项研究为精英小麦品种的改进基因工程铺平了道路.

关键词:

CP:植物:植物.TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN TRN 这就是 TaSCR-TaLBD17 的原因.染色质可访问性染色质可访问性农作物遗传转化作物遗传转化基因型依赖的再生多主题整合多主题整合.转录性监管网络转录性监管网络小麦小麦小麦小麦小麦小麦小麦.

更多相关视频

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo

Published on: January 14, 2016

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes

Published on: February 14, 2020

相关概念视频

Gene Regulation During Sporulation

Gene Regulation During Sporulation

Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...

Inheritance of Chromatin Structures

Inheritance of Chromatin Structures

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...