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甜菜花叶病是甜菜生产的世界性病害,可经多种蚜虫非持久性传播。花叶病毒侵染甜菜,嫩叶常出现脉间褪绿的明脉现象,发生皱缩;功能叶片会出现明暗相间的绿色斑驳,进而产生花叶,严重的发生坏死,给甜菜生产造成巨大损失。本研究归纳了BtMV病原及种质资源抗性的研究概况,分析了BtMV病原生物学特性、病原基因组及编码蛋白结构功能,病原介体及病毒复制模式,以及BtMV侵染甜菜植株及叶片的结构与微观变化。总结了当前用于甜菜花叶病的检测方法和甜菜种质资源的花叶病抗性与抗病反应的研究进展。提出了当前甜菜抗花叶病需要深入开展的研究论题,并对甜菜抗花叶病分子机理和基因工程育种进行了展望。为该病的深入性研究,特别是基因工程育种提供参考。
Beetle mosaic disease is a worldwide disease in the production of sugar beets and can be transmitted non-persistently by a variety of aphids. Mosaic mosaic virus infected beetroot, tender leaves often appear vein chlorotic Ming veins phenomenon occurs shrinkage; functional leaves will appear light and dark green mottled, and then produce mosaic, serious necrosis, causing great loss of sugar beet production . This study summarizes the research status of BtMV pathogen and germplasm resources resistance, analyzes the biological characteristics of BtMV, the structure and function of pathogenic genomes and encoded proteins, pathogen mediators and virus replication patterns, and the structure of BtMV-infected beet plants and leaves With micro changes. The current research methods for the detection of sugar beet mosaic disease and the research progress on the resistance and disease resistance of mosaic virus in sugarbeet germplasm resources were summarized. The current research topics about the anti-mosaic disease of sugar beet are put forward, and the molecular mechanism of anti-mosaic disease and genetic engineering breeding of sugar beet are also prospected. In-depth research for the disease, especially genetic engineering breeding provide a reference.