Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Objectives: Rhizoctonia solani AG-3 is the casual pathogen of tobacco target spot, a serious fungal disease of tobacco that severely decreases yield and quality. To examine the pathogenic mechanisms of this fungus, it is crucial to understand its genetics. The objective of this work was to generate the first fine mapping of a R. solani AG-3 strain from tobacco and to explore potential virulence genes, which will lay the foundation for genetic characterization and its interaction with tobacco. The functional genes involved in this study can be used as the candidates for follow-up experimental analyses.

Data Description: Rhizoctonia solani AG-3 strain XEMS25-1 was isolated from disease leaves of tobacco target spot in Enshi, Hubei Province, China. The DNA was sequenced using Pacific Biosciences Sequel II (PacBio) and Illumina NovaSeq PE150 (Nova). Data from both sequencing platforms were combined, and the de novo assembly yielded an estimated 39.4 Mb genome. Completeness of the genome examined using Benchmarking Universal SingleCopy Orthologs (BUSCO) showed that the assembly had 93.7% of the 758 genes in fungi_odb10. PHI (Pathogen Host Interactions) database analysis revealed 519 reduced virulence genes, 91 loss of pathogenicity genes, 28 hypervirulence genes and 18 effectors might be the pathogenicity-related genes in R. solani AG-3 strain XEMS25-1. These genes could be selected as the RNA-silencing targets for exploring the molecular mechanisms of R. solani AG-3 pathogenicity on tobacco.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11963629PMC
http://dx.doi.org/10.1186/s12863-025-01315-4DOI Listing

Publication Analysis

Top Keywords

solani ag-3
24
rhizoctonia solani
12
tobacco target
12
target spot
12
ag-3 strain
12
fine mapping
8
genes
8
virulence genes
8
strain xems25-1
8
tobacco
7

Similar Publications

Objectives: Rhizoctonia solani AG-3 is the casual pathogen of tobacco target spot, a serious fungal disease of tobacco that severely decreases yield and quality. To examine the pathogenic mechanisms of this fungus, it is crucial to understand its genetics. The objective of this work was to generate the first fine mapping of a R.

View Article and Find Full Text PDF
Article Synopsis
  • Potato black scurf and tobacco target spot are caused by AG-3, which consists of three subgroups (PT, TM, and TB) that correspond to their host plants: potato, tomato, and tobacco.
  • A study analyzed 129 tobacco and 80 potato AG-3 isolates from various regions in China, finding that potato isolates belonged to the PT subgroup, while tobacco isolates were classified into TM and TB subgroups.
  • The research highlighted genetic variations among these subgroups, differences in their biological characteristics and pathogenicity, and noted that AG-3 PT showed the most somatic incompatibility, with distinct differences observed in colony color and morphology.
View Article and Find Full Text PDF

Biological characteristics and metabolic phenotypes of different anastomosis groups of Rhizoctonia solani strains.

BMC Microbiol

June 2024

Guizhou Provincial Academician Workstation of Microbiology and Health, Guizhou Academy of Tobacco Science, Guiyang, 550081, P. R. China.

Background: Rhizoctonia solani is an important plant pathogen worldwide, and causes serious tobacco target spot in tobacco in the last five years. This research studied the biological characteristics of four different anastomosis groups strains (AG-3, AG-5, AG-6, AG-1-IB) of R. solani from tobacco.

View Article and Find Full Text PDF

Genome sequencing and comparative genome analysis of AG-3.

Front Microbiol

April 2024

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

Article Synopsis
  • AG-3 is a plant pathogenic fungus classified into three subgroups based on ITS cluster analysis: AG-3 TB (tobacco target spots), AG-3 PT (potato black scurf), and AG-3 TM (tomato leaf blight).
  • A previous study found most tobacco target spot strains from Yunnan belonged to AG-3 TB, while strains from Liaoning had a unique classification in AG-3 TM.
  • This study sequenced the whole genomes of two AG-3 strains and performed comparative genomic analysis, revealing similarities and differences in genome size, coding genes, and virulence factors among the strains, while establishing a closer genetic relationship between the two AG-3 strains sequenced.
View Article and Find Full Text PDF

Isolates of (AG-3 PT, AG-4 HG-I, AG-4 HG-II) and one binucleate sp. (BNR) belonging to AG-Bb were investigated for pathogenicity on tomato cultivar Mobil. The BNR isolate revealed the lowest virulence and it was used as biocontrol agent against AG-4 HG-II, which showed the highest virulence on tomato.

View Article and Find Full Text PDF