相关实验视频

Updated: Jun 29, 2025

A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response

A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response

Published on: April 17, 2016

miR159a-DUO1模块通过调节素生物合成和粉代谢来调节花粉的发育

Yanhui Xu¹, Wenxiu Tian¹, Minqiang Yin¹

¹National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, China.

Journal of integrative plant biology

|April 5, 2024

概括

miR159a-DUO1模块通过破坏花粉发育和粉代谢来调节的雄性不育,从而导致无果. 这一发现为类种育种提供了新的见解.

科学领域:

植物分子生物学植物分子生物学
遗传学和基因组学在
农业科学农业科学

背景情况:

没有种子是类繁殖的一个关键目标,通常与男性不育和异常花粉发育有关.
控制类无种的精确分子机制在很大程度上仍未被阐明.
了解花粉发育调节对于改善类水果特征至关重要.

研究的目的:

研究miR159a-DUO1模块在调节果中花粉发育和无种的作用.
确定涉及花粉发展的DUO1下游目标.
为了阐明在类植物中男性不孕不育背后的分子网络.

主要方法:

在香港熊猫 (Fortunella hindsii) 中进行基因表达分析 (过度表达和淘汰).
花粉活力和粉代谢的测试.
交叉授粉实验.交叉授粉的实验.
DNA亲和力净化测序 (DAP-seq) 和RNA-seq.
相互作用测试用于验证基因标.

主要成果:

过度表达csi-miR159a或淘汰DUO1导致小,无种子的果实与严重堕胎的花粉.
花粉发育在线粒体I中被阻止,粉代谢在转基因系中被破坏.
DUO1被证实是miR159a的直接标,介导男性不育.
确定了YUC2/YUC6,SS4和STP8作为DUO1的下游目标,受到DUO1的积极调节.
miR159a-DUO1模块降低了auxin水平,并破坏了花粉中的粉代谢.

结论:

miR159a-DUO1模块在调节花粉发育和男性不育方面发挥着至关重要的作用.
该模块通过对花粉的影响间接影响种子发育和果实大小.
这项研究揭示了类植物中男性不育的新型分子机制和调节网络,为培育无种子品种提供了目标.

关键词:

辅助剂辅助剂辅助剂类的类植物.男人的不孕不育能力.这是一个小RNARNA.花粉的发展花粉的发展.没有种子,没有种子.粉的代谢粉的代谢

更多相关视频

Forced Flowering in Mandarin Trees under Phytotron Conditions

Forced Flowering in Mandarin Trees under Phytotron Conditions

Published on: March 6, 2019

Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects

Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects

Published on: May 4, 2018

相关概念视频

Plant Hormones

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.

Regulation of Transpiration by Stomata

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.

Cell Signaling in Plants

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Morphogenesis

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.

Light Acquisition

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.