Comparative Genomic Analysis and Rapid Molecular Detection of Xanthomonas euvesicatoria Using Unique ATP-Dependent DNA Helicase recQ, hrpB1, and hrpB2 Genes Isolated from Physalis pubescens in China

Faisal Siddique; Yang Mingxiu; Xu Xiaofeng; Ni Zhe; Haseeb Younis; Peng Lili; Zhang Junhua

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자료유형: 학술저널

저자정보: Faisal Siddique (Northeast Agricultural University) Yang Mingxiu (Northeast Agricultural University) Xu Xiaofeng (Northeast Agricultural University) Ni Zhe (Northeast Agricultural University) Haseeb Younis (Northeast Agricultural University) Peng Lili (Northeast Agricultural University) Zhang Junhua (Northeast Agricultural University)

저널정보: 한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제39권 제2호

발행연도: 2023.4

수록면: 191 - 206 (16page)

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Ground cherry (Physalis pubescens) is the most prominent species in the Solanaceae family due to its nutritional content, and prospective health advantages. It is grown all over the world, but notably in northern China. In 2019 firstly bacterial leaf spot (BLS) disease was identified on P. pubescens in China that caused by both BLS pathogens Xanthomonas euvesicatoria pv. euvesicatoria resulted in substantial monetary losses. Here, we compared whole genome sequences of X. euvesicatoria to other Xanthomonas species that caused BLS diseases for high similarities and dissimilarities in genomic sequences through average nucleotide identity (ANI) and BLAST comparison. Molecular techniques and phylogenetic trees were adopted to detect X. euvesicatoria on P. pubescens using recQ, hrpB1, and hrpB2 genes for efficient and precise identification. For rapid molecular detection of X. euvesicatoria, loop-mediated isothermal amplification, polymerase chain reaction (PCR), and real-time PCR techniques were used. Whole genome comparison results showed that the genome of X. euvesicatoria was more closely relative to X. perforans than X. vesicatoria, and X. gardneri with 98%, 84%, and 86% ANI, respectively. All infected leaves of P. pubescens found positive amplification, and negative controls did not show amplification. The findings of evolutionary history revealed that isolated strains XeC10RQ, XeH-9RQ, XeA10RQ, and XeB10RQ that originated from China were closely relative and highly homologous to the X. euvesicatoria. This research provides information to researchers on genomic variation in BLS pathogens, and further molecular evolution and identification of X. euvesicatoria using the unique target recQ gene through advance molecular approaches.

#Identification #PCR #P. pubescens #recQ #Xanthomonas

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