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基因组测序和Rhizoctonia solani AG-3的比较基因组分析

Shanshan Xu¹, Chengmeng Shen¹, Chengyun Li¹

¹State Key Laboratory for Protection and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China.

Frontiers in microbiology

|April 19, 2024

概括

这项研究对Rhizoctonia solani AG-3 TM和AG-3 TB亚组的基因组进行了测序,揭示了病毒性因素中的基因组差异和相似性. 这些发现有助于理解烟草点病并制定控制策略.

科学领域:

植物病理学植物病理学
基因组学就是基因组学.
菌类学菌类学是指菌类学.

背景情况:

瑞佐克托尼亚·索拉尼 (Rhizoctonia solani AG-3) 是一种植物病原体,根据宿主范围和遗传分析,被分为结核病,PT和TM亚组.
AG-3 结核病导致烟草点,AG-3 PT 导致土豆黑,AG-3 TM 导致番茄叶病.
之前的研究在中国发现了AG-3TM菌株,具有独特的分类学地位,缺乏全基因组信息.

研究的目的:

测序和分析Rhizoctonia solani AG-3 TM (菌株3T-1) 和AG-3 TB (菌株MJ-102) 的整个基因组.
用已知的AG-3 PT菌株 (Rhs1AP) 进行比较基因组分析.
确定这些子组之间的基因组组成和毒性因子的差异和相似之处.

主要方法:

使用Illumina和PacBio平台对3T-1和MJ-102菌株进行全基因组测序.
基因组比较分析,包括GC含量,重复序列和毒性因子.
对线性分析,以评估进化关系.

主要成果:

对3T-1 (42,103,597 bp,11,290基因,49.74%GC) 和MJ-102 (41,908,281 bp,10,592基因,48.91%GC) 的基因组大小进行了确定.
与Rhs1AP相比,3T-1和MJ-102菌株的重复序列较高.
病毒性因子表现出相似性和差异,其中3T-1和MJ-102显示出比Rhs1AP更接近的遗传关系.

结论:

已经阐明了R. solani AG-3 TM和AG-3 TB菌株的基因组组成.
对比基因组学揭示了毒性因子和基因组结构中不同的和共同的特征.
这项基础研究支持进一步研究R. solani AG-3的分子病原和有效的疾病管理策略.

关键词:

里索克托尼亚·索拉尼 (Rhizoctonia solani AG-3) 是一种植物.在 de novo 测序中使用 de novo 测序.与致病性相关的基因遗传学上的演变.一个子组的子组.

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