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A High-Quality Genome of Rhizoctonia solani, a Devastating Fungal Pathogen with a Wide Host Range

文献类型： 外文期刊

作者： Yang, Qun 1 ; Yang, Lei 1 ; Wang, Yin 1 ; Chen, Yilyu 1 ; Hu, Keming 2 ; Yang, Wei 1 ; Zuo, Shimin 2 ; Xu, Jiandi 3 ; Kang, Zhensheng 4 ; Xiao, Xueqiong 1 ; Li, Guotian 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, State Key Lab Agr Microbiol, Hubei Hongshan Lab, Wuhan 430070, Peoples R China

2.Yangzhou Univ, Key Lab Plant Funct Genom Minist Educ, Jiangsu Key Lab Crop Genom & Mol Breeding, Agr Coll, Yangzhou, Peoples R China

3.Shandong Acad Agr Sci, Inst Wetland Agr & Ecol, Jinan 250100, Peoples R China

4.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Peoples R China

5.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China

关键词： carbohydrate-active enzymes; Nanopore Oryza sativa; Thanatephorus cucumeris; whole-genome sequencing

期刊名称：MOLECULAR PLANT-MICROBE INTERACTIONS （ 影响因子：3.422； 五年影响因子：4.274 ）

ISSN： 0894-0282

年卷期： 2022 年 35 卷 10 期

页码：

收录情况： SCI

摘要： Genome Announcement Rice sheath blight caused by the filamentous fungus Rhizoctonia solani is a serious disease worldwide that leads to yield losses up to 45% and seriously threatens global food security (Nadarajah et al. 2017; Zhang et al. 2021). One of the distinct characteristics of R. solani is that it shows a wide host range and causes diseases on more than 200 plant species, including rice, maize, potato, pepper, cotton, and many ornamental plants (Sneh et al. 1998; Zhang et al. 2021). The infection process of R. solani initiates when scle-rotia or mycelia attach to the host. Subsequently, specialized T-shaped structures called "infection cushions" form on the plant surface. Infection cushions secrete digestive en-zymes that disrupt the plant cell walls, enabling colonization of the host tissue. Gradually, fungal hyphae invade and kill the plant cells, and the infected plant withers when seriously damaged (Abdoulaye et al. 2019). At the end of the disease cycle, R. solani produces sclerotia, which can survive in soil for many years (Long et al. 2019; Zhang et al. 2021). Owing to its wide host range, soil-borne, and saprotrophic nature, management measures to control R. solani including breeding strategies, crop rotation, and fungicides are ineffec-tive (Abdoulaye et al. 2019), and diseases caused by R. solani have become increasingly serious all over the world (Li et al. 2021). Furthermore, the population genomics struc-ture of R. solani strains is complex, consisting of 14 genetic groups, called anastomosis groups (AGs), named AG-1 to AG-13 and AG-BI (Zhang et al. 2021). There is also lim-ited knowledge about the genetic structure within populations and the reproductive mode (Zheng et al. 2013). Here, therefore, we sequenced and assembled a high-quality genome of R. solani AG-1 IA strain HG81, using both Nanopore long reads and next-generation sequencing (NGS) short reads.

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