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Han XY, Du LF, Lin ZT, Li C, Xiong T, Zhu WJ, Ye RZ, Wang N, Wang YF, Gao WY, Zhao L, Cui XM, Cao WC. Genomic characters of Anaplasma bovis and genetic diversity in China. Emerg Microbes Infect 2024; 13:2323153. [PMID: 38442029 PMCID: PMC10916922 DOI: 10.1080/22221751.2024.2323153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
The emergence of Anaplasma bovis or A. bovis-like infection in humans from China and the United States of America has raised concern about the public health importance of this pathogen. Although A. bovis has been detected in a wide range of ticks and mammals in the world, no genome of the pathogen is available up to now, which has prohibited us from better understanding the genetic basis for its pathogenicity. Here we describe an A. bovis genome from metagenomic sequencing of an infected goat in China. Anaplasma bovis had the smallest genome of the genus Anaplasma, and relatively lower GC content. Phylogenetic analysis of single-copy orthologue sequence showed that A. bovis was closely related to A. platys and A. phagocytophilum, but relatively far from intraerythrocytic Anaplasma species. Anaplasma bovis had 116 unique orthogroups and lacked 51 orthogroups in comparison to other Anaplasma species. The virulence factors of A. bovis were significantly less than those of A. phagocytophilum, suggesting less pathogenicity of A. bovis. When tested by specific PCR assays, A. bovis was detected in 23 of 29 goats, with an infection rate up to 79.3% (95% CI: 64.6% ∼94.1%). The phylogenetic analyses based on partial 16S rRNA, gltA and groEL genes indicated that A. bovis had high genetic diversity. The findings of this study lay a foundation for further understanding of the biological characteristics and genetic diversity of A. bovis, and will facilitate the formulation of prevention and control strategies.
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Affiliation(s)
- Xiao-Yu Han
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Li-Feng Du
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Zhe-Tao Lin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Cheng Li
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Tao Xiong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Wen-Jie Zhu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Run-Ze Ye
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Ning Wang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Yi-Fei Wang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Wan-Ying Gao
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Lin Zhao
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Xiao-Ming Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Wu-Chun Cao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
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Mahmoud HYAH, Tanaka T, Ali AO, Emeish WFA. Molecular detection and characterization of Anaplasma ovis, Theileria ovis, and Theileria lestoquardi in sheep and goats in Luxor, Egypt. BMC Vet Res 2024; 20:260. [PMID: 38886742 PMCID: PMC11181633 DOI: 10.1186/s12917-024-04109-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 05/31/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Tick-borne diseases cause economically significant losses to animal production globally, and anaplasmosis and theileriosis are associated with the greatest losses. However, the spread of the relevant pathogens in flocks of domesticated animals in southern Egypt is little understood. Accordingly, in this study, we aimed to determine the prevalences of Anaplasma ovis, Theileria ovis, and Theileria lestoquardi in southern Egyptian sheep and goats through blood tests, and to make a molecular characterization of the A. ovis detected in sheep targeting a specific gene. RESULTS We collected blood samples collected from 300 sheep and goats (n=150 /species) in Luxor Province in southern Egypt, and analyzed them for the presence of A. ovis, T. ovis and T. lestoquardi with screening by conventional and nested PCR targeting the msp4 and msp5, 18S rRNA, and merozoite surface protein genes. For A. ovis 140/300 samples (46.66%) were positive overall, with 90/150 (60%) and 50/150 (33.33%) positive samples in sheep and goats, respectively. Two major surface protein genes of A. ovis, msp4 and msp5, were sequenced using DNA extracted from sheep and goat blood samples, for phylogenetic analysis and genotyping. The msp4 gene sequence revealed no significant genetic diversity, to contrast to data on A. ovis strains from other countries. For T. lestoquardi, 8/150 (5.33%) samples were positive in sheep, but no samples were positive in goats (0%). For T. ovis, 32/150 (21.33%) samples were positive in sheep, but no samples were positive in goats (0%). Sequencing targeting the merozoite surface protein gene for T. lestoquardi and the small subunit ribosomal RNA gene for T. ovis revealed no significant genetic diversity in the study, another contrast to data on A. ovis strains from other countries. CONCLUSION This study provides valuable data on phylogenetic and molecular classifications of A. ovis, T. ovis and T. lestoquardi found in southern Egyptian sheep and goats. It also represents the first report on detection and molecular characterization of T. lestoquardi in southern Egyptian sheep based on the specific merozoite surface protein gene, thus providing valuable data for molecular characterization of this pathogen in southern Egypt.
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Affiliation(s)
- Hassan Y A H Mahmoud
- Division of Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt.
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, 890-0065, Japan
| | - Alsagher O Ali
- Division of Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
| | - Walaa F A Emeish
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
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Buysse M, Koual R, Binetruy F, de Thoisy B, Baudrimont X, Garnier S, Douine M, Chevillon C, Delsuc F, Catzeflis F, Bouchon D, Duron O. Detection of Anaplasma and Ehrlichia bacteria in humans, wildlife, and ticks in the Amazon rainforest. Nat Commun 2024; 15:3988. [PMID: 38734682 PMCID: PMC11088697 DOI: 10.1038/s41467-024-48459-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Tick-borne bacteria of the genera Ehrlichia and Anaplasma cause several emerging human infectious diseases worldwide. In this study, we conduct an extensive survey for Ehrlichia and Anaplasma infections in the rainforests of the Amazon biome of French Guiana. Through molecular genetics and metagenomics reconstruction, we observe a high indigenous biodiversity of infections circulating among humans, wildlife, and ticks inhabiting these ecosystems. Molecular typing identifies these infections as highly endemic, with a majority of new strains and putative species specific to French Guiana. They are detected in unusual rainforest wild animals, suggesting they have distinctive sylvatic transmission cycles. They also present potential health hazards, as revealed by the detection of Candidatus Anaplasma sparouinense in human red blood cells and that of a new close relative of the human pathogen Ehrlichia ewingii, Candidatus Ehrlichia cajennense, in the tick species that most frequently bite humans in South America. The genome assembly of three new putative species obtained from human, sloth, and tick metagenomes further reveals the presence of major homologs of Ehrlichia and Anaplasma virulence factors. These observations converge to classify health hazards associated with Ehrlichia and Anaplasma infections in the Amazon biome as distinct from those in the Northern Hemisphere.
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Affiliation(s)
- Marie Buysse
- MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France
| | - Rachid Koual
- MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France
| | - Florian Binetruy
- MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France
| | - Benoit de Thoisy
- Laboratoire des Interactions Virus-Hôtes, Institut Pasteur de Guyane, Cayenne, France
- Association Kwata 'Study and Conservation of Guianan Wildlife', Cayenne, France
| | - Xavier Baudrimont
- Direction Générale des Territoires et de la Mer (DGTM) - Direction de l'environnement, de l'agriculture, de l'alimentation et de la forêt (DEAAF), Cayenne, France
| | - Stéphane Garnier
- Biogéosciences, UMR 6282 uB/CNRS/EPHE, Université Bourgogne Franche-Comté, Dijon, France
| | - Maylis Douine
- Centre d'Investigation Clinique Antilles-Guyane, INSERM 1424, Centre Hospitalier de Cayenne, Cayenne, France
| | | | - Frédéric Delsuc
- Institut des Sciences de l'Evolution de Montpellier (ISEM), CNRS, IRD, EPHE, Université de Montpellier, Montpellier, France
| | - François Catzeflis
- Institut des Sciences de l'Evolution de Montpellier (ISEM), CNRS, IRD, EPHE, Université de Montpellier, Montpellier, France
| | - Didier Bouchon
- EBI, University of Poitiers, UMR CNRS 7267, Poitiers, France
| | - Olivier Duron
- MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France.
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Yang Y, Wang P, Qaidi SE, Hardwidge PR, Huang J, Zhu G. Loss to gain: pseudogenes in microorganisms, focusing on eubacteria, and their biological significance. Appl Microbiol Biotechnol 2024; 108:328. [PMID: 38717672 PMCID: PMC11078800 DOI: 10.1007/s00253-023-12971-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/26/2023] [Accepted: 12/01/2023] [Indexed: 05/12/2024]
Abstract
Pseudogenes are defined as "non-functional" copies of corresponding parent genes. The cognition of pseudogenes continues to be refreshed through accumulating and updating research findings. Previous studies have predominantly focused on mammals, but pseudogenes have received relatively less attention in the field of microbiology. Given the increasing recognition on the importance of pseudogenes, in this review, we focus on several aspects of microorganism pseudogenes, including their classification and characteristics, their generation and fate, their identification, their abundance and distribution, their impact on virulence, their ability to recombine with functional genes, the extent to which some pseudogenes are transcribed and translated, and the relationship between pseudogenes and viruses. By summarizing and organizing the latest research progress, this review will provide a comprehensive perspective and improved understanding on pseudogenes in microorganisms. KEY POINTS: • Concept, classification and characteristics, identification and databases, content, and distribution of microbial pseudogenes are presented. • How pseudogenization contribute to pathogen virulence is highlighted. • Pseudogenes with potential functions in microorganisms are discussed.
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Affiliation(s)
- Yi Yang
- College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
- Joint Laboratory of International Cooperation On Prevention and Control Technology of Important Animal Diseases and Zoonoses of Jiangsu Higher Education Institutions, Yangzhou, 225009, China
| | - Pengzhi Wang
- College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
- Joint Laboratory of International Cooperation On Prevention and Control Technology of Important Animal Diseases and Zoonoses of Jiangsu Higher Education Institutions, Yangzhou, 225009, China
| | - Samir El Qaidi
- College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA
| | - Philip R Hardwidge
- College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA
| | - Jinlin Huang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China.
- Jiangsu Key Lab of Zoonosis, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- College of Bioscience and Biotechnology, Yangzhou University, 12 East Wenhui Road Yangzhou, Jiangsu, 225009, China.
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China.
- Joint Laboratory of International Cooperation On Prevention and Control Technology of Important Animal Diseases and Zoonoses of Jiangsu Higher Education Institutions, Yangzhou, 225009, China.
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Lin ZT, Du LF, Zhang MZ, Han XY, Wang BH, Meng J, Yu FX, Zhou XQ, Wang N, Li C, Wang XY, Liu J, Gao WY, Ye RZ, Xia LY, Sun Y, Jia N, Jiang JF, Zhao L, Cui XM, Zhan L, Cao WC. Genomic Characteristics of Emerging Intraerythrocytic Anaplasma capra and High Prevalence in Goats, China. Emerg Infect Dis 2023; 29:1780-1788. [PMID: 37610104 PMCID: PMC10461651 DOI: 10.3201/eid2909.230131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
Abstract
Anaplasma capra is an emerging tickborne human pathogen initially recognized in China in 2015; it has been reported in ticks and in a wide range of domestic and wild animals worldwide. We describe whole-genome sequences of 2 A. capra strains from metagenomic sequencing of purified erythrocytes from infected goats in China. The genome of A. capra was the smallest among members of the genus Anaplasma. The genomes of the 2 A. capra strains contained comparable G+C content and numbers of pseudogenes with intraerythrocytic Anaplasma species. The 2 A. capra strains had 54 unique genes. The prevalence of A. capra was high among goats in the 2 endemic areas. Phylogenetic analyses revealed that the A. capra strains detected in this study were basically classified into 2 subclusters with those previously detected in Asia. Our findings clarify details of the genomic characteristics of A. capra and shed light on its genetic diversity.
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Affiliation(s)
- Zhe-Tao Lin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Li-Feng Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Ming-Zhu Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Xiao-Yu Han
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Bai-Hui Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Jiao Meng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Fu-Xun Yu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Xiao-Quan Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Ning Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Cheng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Xiao-Yang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Jing Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Wan-Ying Gao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Run-Ze Ye
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Luo-Yuan Xia
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Yi Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Na Jia
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
| | - Jia-Fu Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China (Z.-T. Lin, L.-F. Du, M.-Z. Zhang, X.-Y. Han, Y. Sun, N. Jia, J.-F. Jiang, X.-M. Cui, W.-C. Cao)
- Institute of EcoHealth, School of Public Health, Shandong University, Jinan, China (L.-F. Du, M.-Z. Zhang, B.-H. Wang, N. Wang, C. Li, X.-Y. Wang, J. Liu, W.-Y. Gao, R.-Z. Ye, L.-Y. Xia, L. Zhao)
- National Health Commission Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang, China (J. Meng, F.-X. Yu, L. Zhan)
- Guizhou Provincial Blood Center, Guiyang (X.-Q. Zhou)
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Ouass S, Boulanger N, Lelouvier B, Insonere JLM, Lacroux C, Krief S, Asalu E, Rahola N, Duron O. Diversity and phylogeny of the tick-borne bacterial genus Candidatus Allocryptoplasma (Anaplasmataceae). Parasite 2023; 30:13. [PMID: 37162293 PMCID: PMC10171070 DOI: 10.1051/parasite/2023014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/20/2023] [Indexed: 05/11/2023] Open
Abstract
The family Anaplasmataceae includes tick-borne bacteria of major public and veterinary health interest, as best illustrated by members of the genera Anaplasma and Ehrlichia. Recent epidemiological surveys have also reported on the presence of a novel putative genus in the Anaplasmataceae, Candidatus Allocryptoplasma, previously described as Candidatus Cryptoplasma in the western black-legged tick, Ixodes pacificus. However, the genetic diversity of Ca. Allocryptoplasma and its phylogenetic relationship with other Anaplasmataceae remain unclear. In this study, we developed a multi-locus sequence typing approach, examining the DNA sequence variation at five genes of Ca. Allocryptoplasma found in ticks. Combining this multi-locus sequence typing and genetic data available on public databases, we found that substantial genetic diversity of Ca. Allocryptoplasma is present in Ixodes, Amblyomma and Haemaphysalis spp. ticks on most continents. Further analyses confirmed that the Ca. Allocryptoplasma of ticks, the Ca. Allocryptoplasma of lizards and some Anaplasma-like bacteria of wild mice cluster into a monophyletic genus, divergent from all other genera of the family Anaplasmataceae. Candidatus Allocryptoplasma appears as a sister genus of Anaplasma and, with the genera Ehrlichia and Neoehrlichia, they form a monophyletic subgroup of Anaplasmataceae associated with tick-borne diseases. The detection of genetically distinct Ca. Allocryptoplasma in ticks of significant medical or veterinary interest supports the hypothesis that it is an emergent genus of tick-borne pathogens of general concern.
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Affiliation(s)
- Sofian Ouass
- MIVEGEC, University of Montpellier (UM), Centre National de la Recherche Scientifique (CNRS), Institut pour la Recherche de la Développement (IRD), 34394 Montpellier, France
| | - Nathalie Boulanger
- University of Strasbourg, French National Reference Center for Borrelia, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | | | | | - Camille Lacroux
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie, Muséum National d'Histoire Naturelle, Musée de l'Homme, 17 place du Trocadéro, 75116, Paris, France - La Phocéenne de Cosmétique, ZA Les Roquassiers, 174 Rue de la Forge, 13300 Salon-de-Provence, France - Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda
| | - Sabrina Krief
- UMR 7206 CNRS/MNHN/P7, Eco-anthropologie, Muséum National d'Histoire Naturelle, Musée de l'Homme, 17 place du Trocadéro, 75116, Paris, France - Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda
| | - Edward Asalu
- Sebitoli Chimpanzee Project, Great Ape Conservation Project, Kibale National Park, Fort Portal, Uganda - Uganda Wildlife Authority, Kibale National Park, Uganda
| | - Nil Rahola
- MIVEGEC, University of Montpellier (UM), Centre National de la Recherche Scientifique (CNRS), Institut pour la Recherche de la Développement (IRD), 34394 Montpellier, France
| | - Olivier Duron
- MIVEGEC, University of Montpellier (UM), Centre National de la Recherche Scientifique (CNRS), Institut pour la Recherche de la Développement (IRD), 34394 Montpellier, France
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Assembly and Comparison of Ca. Neoehrlichia mikurensis Genomes. Microorganisms 2022; 10:microorganisms10061134. [PMID: 35744652 PMCID: PMC9227406 DOI: 10.3390/microorganisms10061134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
Ca. Neoehrlichia mikurensis is widely prevalent in I. ricinus across Europe and has been associated with human disease. However, diagnostic modalities are limited, and much is still unknown about its biology. Here, we present the first complete Ca. Neoehrlichia mikurensis genomes directly derived from wildlife reservoir host tissues, using both long- and short-read sequencing technologies. This pragmatic approach provides an alternative to obtaining sufficient material from clinical cases, a difficult task for emerging infectious diseases, and to expensive and challenging bacterial isolation and culture methods. Both genomes exhibit a larger chromosome than the currently available Ca. Neoehrlichia mikurensis genomes and expand the ability to find new targets for the development of supportive laboratory diagnostics in the future. Moreover, this method could be utilized for other tick-borne pathogens that are difficult to culture.
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Molecular Detection and Genetic Diversity of Tick-Borne Pathogens in Goats from the Southern Part of Thailand. Pathogens 2022; 11:pathogens11040477. [PMID: 35456152 PMCID: PMC9032176 DOI: 10.3390/pathogens11040477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 12/29/2022] Open
Abstract
Tick-borne hemoprotozoan and rickettsial diseases affect the health and productivity of small ruminants in tropical and subtropical regions. Despite the large population of goats in the southern part of Thailand, there is limited information on the prevalence of tick-borne pathogens. In this study, polymerase chain reaction was used to detect the presence of Theileria spp., T. ovis, T. orientalis, Babesia ovis, Anaplasma ovis, and A. marginale in 262 goats from three provinces in the southern part of Thailand. In this investigation, Theileria spp. and A. ovis were detected while T. ovis, B. ovis, and A. marginale were not detected. Overall infection rates of Theileria spp. and A. ovis were 10.3% and 1.5%, respectively. The co-infections of two parasites was observed in 1.5% of goats. Sequence analysis showed the presence of T. luwenshuni and T. orientalis in the goat samples. This study is the first to use the molecular detection of T. orientalis in Thai goats, and presents genetic characterization using the major piroplasm surface protein (MPSP) gene. In the phylogenetic analysis, the T. orientalis MPSP sequence was classified as type 7. The A. ovis major surface protein 4 (MSP4) gene sequences shared high identities and similarity with each other and clustered with isolates from other regions. This study provides information about the prevalence and genetic diversity of tick-borne pathogens in goats in the study area, and is expected to be valuable for the development of effective control measures to prevent disease in animals in Thailand.
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9
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Köseoğlu AE, Can H, Güvendi M, Erkunt Alak S, Kandemir Ç, Taşkın T, Demir S, Akgül G, Değirmenci Döşkaya A, Karakavuk M, Döşkaya M, Gürüz AY, Ün C. Molecular investigation of bacterial and protozoal pathogens in ticks collected from different hosts in Turkey. Parasit Vectors 2021; 14:270. [PMID: 34016174 PMCID: PMC8138928 DOI: 10.1186/s13071-021-04779-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/08/2021] [Indexed: 02/04/2023] Open
Abstract
Background The emergence of tick-borne disease is increasing because of the effects of the temperature rise driven by global warming. In Turkey, 19 pathogens transmitted by ticks to humans and animals have been reported. Based on this, this study aimed to investigate tick-borne pathogens including Hepatozoon spp., Theileria spp., Babesia spp., Anaplasma spp., Borrelia spp., and Bartonella spp. in tick samples (n = 110) collected from different hosts (dogs, cats, cattle, goats, sheep, and turtles) by molecular methods. Methods To meet this objective, ticks were identified morphologically at the genus level by microscopy; after DNA isolation, each tick sample was identified at the species level using the molecular method. Involved pathogens were then investigated by PCR method. Results Seven different tick species were identified including Rhipicephalus sanguineus, R. turanicus, R. bursa, Hyalomma marginatum, H. anatolicum, H. aegyptium, and Haemaphysalis erinacei. Among the analyzed ticks, Hepatozoon spp., Theileria spp., Babesia spp., and Anaplasma spp. were detected at rates of 6.36%, 16.3%, 1.81%, and 6.36%, respectively while Borrelia spp. and Bartonella spp. were not detected. Hepatozoon spp. was detected in R. sanguineus ticks while Theileria spp., Babesia spp., and Anaplasma spp. were detected in R. turanicus and H. marginatum. According to the results of sequence analyses applied for pathogen positive samples, Hepatozoon canis, Theileria ovis, Babesia caballi, and Anaplasma ovis were identified. Conclusion Theileria ovis and Anaplasma ovis were detected for the first time to our knowledge in H. marginatum and R. turanicus collected from Turkey, respectively. Also, B. caballi was detected for the first time to our knowledge in ticks in Turkey. ![]()
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Affiliation(s)
- Ahmet Efe Köseoğlu
- Molecular Biology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - Hüseyin Can
- Molecular Biology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey.
| | - Mervenur Güvendi
- Molecular Biology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - Sedef Erkunt Alak
- Molecular Biology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - Çağrı Kandemir
- Department of Animal Science, Faculty of Agriculture, Ege University, Izmir, Turkey
| | - Turğay Taşkın
- Department of Animal Science, Faculty of Agriculture, Ege University, Izmir, Turkey
| | - Samiye Demir
- Zoology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - Gülşah Akgül
- Department of Internal Medicine, Faculty of Veterinary Medicine, Siirt University, Siirt, Turkey
| | | | | | - Mert Döşkaya
- Department of Parasitology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Adnan Yüksel Gürüz
- Department of Parasitology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Cemal Ün
- Molecular Biology Section, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
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Rar V, Tkachev S, Tikunova N. Genetic diversity of Anaplasma bacteria: Twenty years later. INFECTION GENETICS AND EVOLUTION 2021; 91:104833. [PMID: 33794351 DOI: 10.1016/j.meegid.2021.104833] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 01/04/2023]
Abstract
The genus Anaplasma (family Anaplasmataceae, order Rickettsiales) includes obligate intracellular alphaproteobacteria that multiply within membrane-bound vacuoles and are transmitted by Ixodidae ticks to vertebrate hosts. Since the last reclassification of Anaplasmataceae twenty years ago, two new Anaplasma species have been identified. To date, the genus includes eight Anaplasma species (A. phagocytophilum, A. marginale, A. centrale, A. ovis, A. bovis, A. platys, A. odocoilei, and A. capra) and a large number of unclassified genovariants that cannot be assigned to known species. Members of the genus can cause infection in humans and a wide range of domestic animals with different degrees of severity. Long-term persistence which, in some cases, is manifested as cyclic bacteremia has been demonstrated for several Anaplasma species. Zoonotic potential has been shown for A. phagocytophilum, the agent of human granulocytic anaplasmosis, and for some other Anaplasma spp. that suggests a broader medical relevance of this genus. Genetic diversity of Anaplasma spp. has been intensively studied in recent years, and it has been shown that some Anaplasma spp. can be considered as a complex of genetically distinct lineages differing by geography, vectors, and host tropism. The aim of this review was to summarize the current knowledge concerning the natural history, pathogenic properties, and genetic diversity of Anaplasma spp. and some unclassified genovariants with particular attention to their genetic characteristics. The high genetic variability of Anaplasma spp. prompted us to conduct a detailed phylogenetic analysis for different Anaplasma species and unclassified genovariants, which were included in this review. The genotyping of unclassified genovariants has led to the identification of at least four distinct clades that might be considered in future as new candidate species.
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Affiliation(s)
- Vera Rar
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russian Federation.
| | - Sergey Tkachev
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russian Federation
| | - Nina Tikunova
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russian Federation
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11
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Gong L, Shi W, Yang M, Luo H. Variations in the conserved 18S and 5.8S reveal the putative pseudogenes in 18S-ITS1-5.8S rDNA of Cynoglossus melampetalus (Pleuronectiformes: Cynoglossidae). Biochem Biophys Res Commun 2020; 534:233-239. [PMID: 33276952 DOI: 10.1016/j.bbrc.2020.11.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 11/26/2022]
Abstract
Many early studies of ribosomal RNA gene (rDNA) suggested that rDNA tandem repeats within species are homogeneous. However, increasing number of reports have found intra-individual rDNA polymorphism across a range of taxa. Here, we reported a high level of intra-individual polymorphism of 18S-ITS1-5.8S rDNA in the genome of Cynoglossus melampetalus (Pleuronectiformes: Cynoglossidae), indicating a non-concerted evolution manner. Sequence alignments found two distinct types of 18S and 5.8S (Type A and B) and five types of ITS1 sequence (Type A - E) coexisted in the genome differing in length, GC content, secondary structure stability and minimum free energy. Based on the unique features of pseudogene and comparison of the conserved 18S rDNA sequence and 5.8S secondary structure of 22 flatfishes revealed that Type B sequences of 18S, 5.8S and their linked ITS1 were putative pseudogenes. So far, detection of rRNA pseudogenes from the multiple rDNA copies has been an intricate puzzle. Our results, as a result, provide a new ideal for rRNA pseudogene identification.
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Affiliation(s)
- Li Gong
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, 316022, Zhoushan, China; Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, 530007, China.
| | - Wei Shi
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China
| | - Min Yang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China
| | - Hairong Luo
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China
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12
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Molecular Detection and Assessment of Risk Factors for Tick-Borne Diseases in Sheep and Goats from Turkey. Acta Parasitol 2020; 65:723-732. [PMID: 32378157 DOI: 10.2478/s11686-020-00207-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/25/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND Tick-borne diseases mainly, theileriosis, babesiosis and anaplasmosis cause significant economic losses in livestock globally, including Turkey. The tick-borne pathogens of small ruminants in Turkey have been studied widely but information on molecular characterization and disease occurrence is still limited. METHODS In this study, both microscopy and molecular detection and characterization for Theileria spp. Babesia ovis, Anaplasma ovis and Anaplasma phagocytophilum was conducted. A total of 133 blood samples of tick-infested small ruminants (105 sheep and 28 goats) were collected from Turkey: half of the animals had clinical signs of tick-borne disease infections. RESULTS Using PCR assays and microscopy, 90.2% and 45.1% of the samples were positive for at least one pathogen, respectively. Overall, the infection rates of A. phagocytophilum, B. ovis, A. ovis, Theileria spp. were 66.7%, 62.4%, 46.6% and 7.0%, respectively. Fifty-nine of the 133 (44.4%) samples were co-infected with two or more pathogens. Sex, season and B. ovis positivity were significant risk factors for occurrence of clinical disease. Sequence and phylogenetic analysis based on B. ovis 18S small subunit rRNA, A. ovis major surface protein 4, Theileria spp. 18S rRNA and A. phagocytophilum 16S rRNA genes showed that the isolates in this study clustered together in well-supported clades with those previously collected from Turkey and other countries. CONCLUSIONS The study shows B. ovis as the most significant pathogen associated with clinical and fatal cases in small ruminants from Turkey. Female sex and summer season are associated with increased risk of the disease. This study shows high infection rates with the pathogens among small ruminants including A. phagocytophilum which has veterinary and public health importance.
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13
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Ben Said M, Selmi R, Rhouma MH, Belkahia H, Messadi L. Molecular phylogeny and genetic diversity based on msp1a, groEL and gltA genes of Anaplasma ovis Tunisian isolates compared to available worldwide isolates and strains. Ticks Tick Borne Dis 2020; 11:101447. [PMID: 32499148 DOI: 10.1016/j.ttbdis.2020.101447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 04/09/2020] [Accepted: 04/15/2020] [Indexed: 12/22/2022]
Abstract
Anaplasma ovis, the causative agent of ovine anaplasmosis in tropical and subtropical countries, is a tick-borne obligatory intraerythrocytic bacterium of sheep, goats and wild ruminants. In Tunisia, data about the molecular phylogeny and the genetic diversity of A. ovis isolates are limited to the analysis of msp4 and groEL genes. The aim of this study was to genetic characterize 40 A. ovis isolates infecting 28 goats, 10 sheep, one camel and one Rhipicephalus turanicus tick located in different geographic regions of Tunisia on the basis of 3 partial genes (gltA, groEL and msp1a). Sequence analysis revealed 6 and 17 different genotypes in the partial gltA and groEL genes, respectively. Phylogenetic analysis revealed, as expected for the groEL gene, that sequences from small ruminants and their infesting ticks clustered separately from those isolated from camels. The analysis of amino-acid Msp1a sequences identified 18 novel genotypes of Msp1a repeats from 20 A. ovis isolates. These Msp1a repeats were highly variable with 33-47 amino-acids, and the number of repeats is one for 19 isolates infecting 18 goats and one R. turanicus tick, and 4 for a single isolate found in one sheep. Phylogenetic trees based on Msp1a partial sequences revealed that the N-terminal region of Msp1a protein appear to be relatively more informative phylogeographically compared to other markers especially according to countries. The presented data give a more detailed knowledge regarding the molecular phylogeny and the genetic diversity of A. ovis isolates occurring in different animal species and their associated ticks in Tunisia.
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Affiliation(s)
- Mourad Ben Said
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de La Manouba, 2020 Sidi Thabet, Tunisia.
| | - Rachid Selmi
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de La Manouba, 2020 Sidi Thabet, Tunisia
| | - Mohamed Hamza Rhouma
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de La Manouba, 2020 Sidi Thabet, Tunisia
| | - Hanène Belkahia
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de La Manouba, 2020 Sidi Thabet, Tunisia
| | - Lilia Messadi
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de La Manouba, 2020 Sidi Thabet, Tunisia.
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14
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First Whole Genome Sequence of Anaplasma platys, an Obligate Intracellular Rickettsial Pathogen of Dogs. Pathogens 2020; 9:pathogens9040277. [PMID: 32290349 PMCID: PMC7238063 DOI: 10.3390/pathogens9040277] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 01/31/2023] Open
Abstract
We have assembled the first genome draft of Anaplasma platys, an obligate intracellular rickettsia, and the only known bacterial pathogen infecting canine platelets. A. platys is a not-yet-cultivated bacterium that causes infectious cyclic canine thrombocytopenia, a potentially fatal disease in dogs. Despite its global distribution and veterinary relevance, no genome sequence has been published so far for this pathogen. Here, we used a strategy based on metagenome assembly to generate a draft of the A. platys genome using the blood of an infected dog. The assembled draft is similar to other Anaplasma genomes in size, gene content, and synteny. Notable differences are the apparent absence of rbfA, a gene encoding a 30S ribosome-binding factor acting as a cold-shock protein, as well as two genes involved in biotin metabolism. We also observed differences associated with expanded gene families, including those encoding outer membrane proteins, a type IV secretion system, ankyrin repeat-containing proteins, and proteins with predicted intrinsically disordered regions. Several of these families have members highly divergent in sequence, likely to be associated with survival and interactions within the host and the vector. The sequence of the A. platys genome can benefit future studies regarding invasion, survival, and pathogenesis of Anaplasma species, while paving the way for the better design of treatment and prevention strategies against these neglected intracellular pathogens.
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15
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Peng Y, Zhao S, Wang K, Song J, Yan Y, Zhou Y, Shi K, Jian F, Wang R, Zhang L, Ning C. A Multiplex PCR Detection Assay for the Identification of Clinically Relevant Anaplasma Species in Field Blood Samples. Front Microbiol 2020; 11:606. [PMID: 32318051 PMCID: PMC7154085 DOI: 10.3389/fmicb.2020.00606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/18/2020] [Indexed: 11/13/2022] Open
Abstract
The genus Anaplasma (Rickettsiales: Anaplasmataceae), which includes the species Anaplasma capra, Anaplasma bovis, Anaplasma ovis, and Anaplasma phagocytophilum, is responsible for a wide variety of infections in both human and veterinary health worldwide. Multiple infections with these four Anaplasma pathogens have been reported in many cases. We introduce a novel multiplex PCR for the simultaneous detection of A. capra, A. bovis, A. ovis, and A. phagocytophilum, based on species-specific primers against the groEL (A. capra and A. bovis), msp4 (A. ovis), and 16S rRNA (A. phagocytophilum) genes. To verify the specificity of the PCR reactions, we evaluated four sets of primers to analyze samples containing different blood pathogens. The sensitivity of the multiplex PCR was evaluated by amplifying 10-fold dilutions of total genomic DNA extracted from sheep blood infected with A. capra, A. bovis, A. ovis, or A. phagocytophilum. The reproducibility of the assay was evaluated by testing 10-fold dilutions of total genomic DNA extracted from sheep blood infected with these pathogens from 100 to 10–3 ng/μL per reaction in triplicate on three different days. A total of 175 field blood DNA samples were used to evaluate the reproducibility of multiplex PCR compared with the simplex PCRs. PCR primers used in this study were confirmed to be 100% species-specific using blood pathogens previously identified by other methods. The lower limit of detection of the multiplex PCR with good repeatability enabled the detection of A. capra, A. bovis, A. ovis and A. phagocytophilum at concentrations of 3 × 10–5, 5 × 10–7, 2 × 10–5, and 7 × 10–7 ng/μL, respectively. There was no significant difference between conventional and multiplex PCR protocols used to detect the four Anaplasma species (P > 0.05). The results of the multiplex PCR revealed that the A. capra groEL gene, the A. bovis groEL gene, the A. ovis msp4 gene, and the A. phagocytophilum 16S rRNA gene were reliable target genes for species identification in clinical isolates, being specific for each of the four target Anaplasma species. Our study provides an effective, sensitive, specific, and accurate tool for the rapid differential clinical diagnosis and epidemiological surveillance of Anaplasma pathogens in sheep and goats.
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Affiliation(s)
- Yongshuai Peng
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,College of Animal Medical Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Shanshan Zhao
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Kunlun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Jinxing Song
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yaqun Yan
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yongchun Zhou
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Ke Shi
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Fuchun Jian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Rongjun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Longxian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, China
| | - Changshen Ning
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, China
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