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Moghaieb REA, Abdelhadi AA, El-Sadawy HA, Allam NAT, Baiome BA, Soliman MH. Molecular identification and genetic diversity among Photorhabdus and Xenorhabdus isolates. 3 Biotech 2017; 7:6. [PMID: 28391470 PMCID: PMC5385175 DOI: 10.1007/s13205-016-0594-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 12/23/2016] [Indexed: 11/30/2022] Open
Abstract
Five bacterial strains were isolated from the hemocoel of the greater wax moth larvae (Galleria mellonella) infected with the entomopathogenic nematodes: Heterorhabditis bacteriophora HP88, Heterorhabditis indicus RM1 and Heterorhabditis sp (S1), Steinernema abbasi and Steinernema sp. (S II). Strains were identified as Photorhabdus luminescens HRM1, P. luminescens HS1, P. luminescens HP88, Xenorhabdus indica and X. nematophila ATTC19061 using 16S rDNA sequence analysis. To reveal the genetic diversity among these strains, three molecular markers (RAPD, ISSR and SRAP) were employed. RAPD analysis showed 73.8 and 54.5 polymorphism percentages for the Photorhabdus and Xenorhabdus strains, respectively. ISSR analysis resulted in 70.1 and 75.2 polymorphism percentages among the Photorhabdus and Xenorhabdus strains, respectively. The SRAP analysis indicated that 75.6 and 61.2% genetic polymorphism was detected among Photorhabdus and Xenorhabdus strains, respectively. The cluster analysis grouped the three Photorhabdus strains together in one cluster and the two Xenorhabdus strains together in another cluster indicating the phylogenetic relationships among them. The genotype-specific markers detected from the three molecular markers (RAPD, ISSR and SRAP) were sufficient to distinguish between the different bacterial strains tested and can be used in the future IBM program that could be built on the use of these strains.
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Affiliation(s)
- Reda E A Moghaieb
- Department of Genetics and Genetic Engineering Research Center (GERC), Faculty of Agriculture Cairo University, Giza, 12613, Egypt
- College of Biotechnology, University of Modern Science, UAE, 232816, Dubai, United Arab Emirates
| | - Abdelhadi A Abdelhadi
- Department of Genetics and Genetic Engineering Research Center (GERC), Faculty of Agriculture Cairo University, Giza, 12613, Egypt
| | - Hanan A El-Sadawy
- Parasitology and Animal Diseases Department, National Research Centre, Elbuhoth St., Dokki, Giza, 12311, Egypt
| | - Nesreen A T Allam
- Parasitology and Animal Diseases Department, National Research Centre, Elbuhoth St., Dokki, Giza, 12311, Egypt
| | - Baiome Abdelmaguid Baiome
- Parasitology and Animal Diseases Department, National Research Centre, Elbuhoth St., Dokki, Giza, 12311, Egypt
| | - Mohamed H Soliman
- Department of Genetics and Genetic Engineering Research Center (GERC), Faculty of Agriculture Cairo University, Giza, 12613, Egypt.
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Chen F, Li J, Sugiyama H, Zhou DH, Song HQ, Zhao GH, Zhu XQ. Genetic variability among Schistosoma japonicum isolates from the Philippines, Japan and China revealed by sequence analysis of three mitochondrial genes. ACTA ACUST UNITED AC 2013; 26:35-40. [DOI: 10.3109/19401736.2013.814110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Fen Chen
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
- Department of Basic Medicine, Xiangnan University, Chenzhou, Hunan Province, PR China,
| | - Juan Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
- Department of Parasitology, Institute of Veterinary Medicine, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, PR China,
| | - Hiromu Sugiyama
- Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan,
| | - Dong-Hui Zhou
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
| | - Hui-Qun Song
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
| | - Guang-Hui Zhao
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, PR China, and
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
- Department of Parasitology, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, PR China
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Zhao GH, Li J, Blair D, Li XY, Elsheikha HM, Lin RQ, Zou FC, Zhu XQ. Biotechnological advances in the diagnosis, species differentiation and phylogenetic analysis of Schistosoma spp. Biotechnol Adv 2012; 30:1381-9. [DOI: 10.1016/j.biotechadv.2012.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 01/08/2012] [Accepted: 02/08/2012] [Indexed: 11/26/2022]
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Li J, Zhao GH, Zhou DH, Sugiyama H, Nisbet AJ, Li XY, Zou FC, Li HL, Ai L, Zhu XQ. Retrotransposon-microsatellite amplified polymorphism, an electrophoretic approach for studying genetic variability among Schistosoma japonicum geographical isolates. Electrophoresis 2012; 33:2859-66. [PMID: 23019103 DOI: 10.1002/elps.201200110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In the present study, retrotransposon-microsatellite amplified polymorphism (REMAP) was used to examine genetic variability among Schistosoma japonicum isolates from different endemic provinces in mainland China, using S. japonicum from Japan and the Philippines for comparison. Of the 50 primer combinations screened, eight produced highly reproducible REMAP fragments. Using these primers, 190 distinct DNA fragments were generated in total, of which 147 (77.37%) were polymorphic, indicating considerable genetic variation among the 43 S. japonicum isolates examined. The percentage of polymorphic bands (PPB) among S. japonicum isolates from mainland China, Japan, and the Philippines was 77.37%; PPB values of 18.42% and 53.68% were found among isolates from southwestern (SW) China and the lower Yangtze/Zhejiang province in eastern (E) China, respectively. Based on REMAP profiles, unweighted pair-group method with arithmetic averages (UPGMA) dendrogram analysis revealed that all of the S. japonicum samples grouped into three distinct clusters: parasites from mainland China, Japan, and the Philippines were clustered in each individual clade. Within the mainland China cluster, SW China isolates (from Sichuan and Yunnan provinces) grouped together, whereas worms from E China (Zhejiang, Anhui, Jiangxi, Jiangsu, Hunan, and Hubei provinces) grouped together. These results demonstrated that the REMAP marker system provides a reliable electrophoretic technique for studying genetic diversity and population structures of S. japonicum isolates from mainland China, and could be applied to other pathogens of human and animal health significance.
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Affiliation(s)
- Juan Li
- Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China
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Zhao GH, Li J, Song HQ, Li XY, Chen F, Lin RQ, Yuan ZG, Weng YB, Hu M, Zou FC, Zhu XQ. A specific PCR assay for the identification and differentiation of Schistosoma japonicum geographical isolates in mainland China based on analysis of mitochondrial genome sequences. INFECTION GENETICS AND EVOLUTION 2012; 12:1027-36. [PMID: 22446475 DOI: 10.1016/j.meegid.2012.02.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Revised: 02/28/2012] [Accepted: 02/29/2012] [Indexed: 12/01/2022]
Abstract
In the present study, near-complete mt genome sequences for eight representative Schistosoma japonicum samples from seven endemic provinces in mainland China were analyzed. Sequence differences among the eight mt genomes of S. japonicum samples were 0.20-2.51%. Variation in protein-coding genes was greater than that in rRNA genes. The mt DNA sequences of S. japonicum samples from south-western (SW) China were 2 bp [position 11727-11728 within tRNA-Cys, microsatellite (AG) indel] longer than those of the parasites from the lower Yangtze/Zhejiang areas. Representative DNA sequencing confirmed that such (AG) indel could be exploited for identification and differentiation of S. japonicum populations in SW China's Yunnan and Sichuan province which have two (AG) repeats from those in all remaining endemic provinces along the Yangtze River below the Three Gorges regions or close to the east coast of China (e.g., Zhejiang) which have only one (AG) repeat. Phylogenetic analyses based on the concatenated amino acids of 12 protein-coding genes also showed that samples from SW China (Sichuan and Yunnan provinces), above the Three Gorges Dam, formed a distinct cluster. Based on this indel polymorphism, a pair of specific primers was designed and used to develop a specific-PCR polyacrylamide gel detection assay. There was an obvious length difference in the amplified PCR products between S. japonicum samples from the two endemic types. The specific-PCR assay allowed the specific identification of S. japonicum, with no amplicons being amplified from other closely related trematodes, and the minimum amount of DNA detectable was 0.05 ng. This approach is inexpensive, easy to perform and the whole detection process can be completed within 4h. Examination of 81 S. japonicum samples from SW China's Yunnan and Sichuan provinces, and 264 samples from the lower Yangtze provinces (Hubei, Jiangsu, Jiangxi, Anhui and Hunan) and from Zhejiang validated the value of the specific PCR assay and proved its reliability. These findings indicate that the specific PCR assay would provide a useful tool for the epidemiological surveillance and for tracing the source of S. japonicum infection in humans and animals in China.
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Affiliation(s)
- Guang-Hui Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China
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