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Assessment of Genetic Variability and Evolutionary Relationships of Rhizoctonia solani Inherent in Legume Crops

文献类型： 外文期刊

作者： Abbas, Aqleem 1 ; Ali, Amjad 1 ; Hussain, Azhar 1 ; Alrefaei, Abdulwahed Fahad 3 ; Naqvi, Syed Atif Hasan 4 ; Rao, Muhammad Junaid 5 ; Mubeen, Iqra 6 ; Farooq, Tahir 8 ; Olmez, Fatih 2 ; Baloch, Faheem Shehzad 2 ;

作者机构： 1.Karakoram Int Univ KIU, Dept Agr & Food Technol, Gilgit 15100, Pakistan

2.Sivas Univ Sci & Technol, Fac Agr Sci & Technol, Dept Plant Protect, TR-58140 Sivas, Turkiye

3.King Saud Univ, Coll Sci, Dept Zool, POB 2455, Riyadh 11451, Saudi Arabia

4.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Plant Pathol, Multan 60800, Pakistan

5.Guangxi Univ, Coll Agr, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangxi Key Lab Sugarcane Biol, Nanning 530021, Peoples R China

6.Zhejiang Univ, Inst Biotechnol, State Key Lab Rice Biol, Key Lab Mol Biol Crop Pathogens & Insects, Hangzhou 310058, Peoples R China

7.Zhejiang Univ, Inst Biotechnol, Key Lab Mol Biol Crop Pathogens & Insects, Minist Agr, Hangzhou 310058, Peoples R China

8.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangzhou 510640, Peoples R China

关键词： phylogeny; genetic diversity; anastomosis groups; grain legumes; forage legumes; Rhizoctonia solani

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 13 期

页码：

收录情况： SCI

摘要： Rhizoctonia solani is one of the most common soil-borne fungal pathogens of legume crops worldwide. We collected rDNA-ITS sequences from NCBI GenBank, and the aim of this study was to examine the genetic diversity and phylogenetic relationships of various R. solani anastomosis groups (AGs) that are commonly associated with grain legumes (such as soybean, common bean, pea, peanut, cowpea, and chickpea) and forage legumes (including alfalfa and clover). Soybean is recognized as a host for multiple AGs, with AG-1 and AG-2 being extensively investigated. This is evidenced by the higher representation of sequences associated with these AGs in the NCBI GenBank. Other AGs documented in soybean include AG-4, AG-7, AG-11, AG-5, AG-6, and AG-9. Moreover, AG-4 has been extensively studied concerning its occurrence in chickpea, pea, peanut, and alfalfa. Research on the common bean has been primarily focused on AG-2, AG-4, and AG-1. Similarly, AG-1 has been the subject of extensive investigation in clover and cowpea. Collectively, AG-1, AG-2, and AG-4 have consistently been identified and studied across these diverse legume crops. The phylogenetic analysis of R. solani isolates across different legumes indicates that the distinct clades or subclades formed by the isolates correspond to their specific anastomosis groups (AGs) and subgroups, rather than being determined by their host legume crop. Additionally, there is a high degree of sequence similarity among isolates within the same clade or subclade. Principal coordinate analysis (PCoA) further supports this finding, as isolates belonging to the same AGs and/or subgroups cluster together, irrespective of their host legume. Therefore, the observed clustering of R. solani AGs and subgroups without a direct association with the host legume crop provides additional support for the concept of AGs in understanding the genetic relationships and evolution of R. solani.

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