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Capizzi D, Sposimo P, Sozio G, Fratini S, Zanet S, Biondo C, Romano A, Dell'Agnello F, Baccetti N, Petrassi F. For birds and humans: challenges and benefits of rat eradication from an inhabited island (Ventotene, central Italy). PEST MANAGEMENT SCIENCE 2023. [PMID: 38151297 DOI: 10.1002/ps.7947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/13/2023] [Accepted: 12/28/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Rat eradication from islands is a very effective tool that can free entire ecosystems from the pressure of alien predators. In this study we present the case study of Ventotene (Ponziane Archipelago, central Italy), which to date is the island with by far the greatest number of human inhabitants ever freed from the negative implications of rats. Rat eradication was carried out in the framework of the Life PonDerat project, co-financed by the European Union. Besides considering the conservation benefits due to the removal of rats, we also considered the socio-economic and pathogenic impacts from introduced rats. RESULTS The overall economic cost of the rats was quantified to be at least €18 500 per year to the residents of the island. Several zoonotic pathogens were detected in the rat population prior to eradication. A reduction in the rodenticide distributed over time on the island was also estimated. Identifying the origin of the rat population allowed for the development of more targeted and effective biosecurity measures. The eradication effort was challenged by the presence of domestic animals and variability in support for baiting in urbanised areas. CONCLUSIONS The results of this study open up new perspectives on island restoration projects. We demonstrated the cost-effectiveness of the action, including ecosystem restoration, reduction of rat impacts in agricultural systems, and improving overall health and food safety. Our findings will have implications for similar interventions on other islands, potentially bringing significant benefits. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Dario Capizzi
- Latium Region, Environmental Department, Rome, Italy
| | - Paolo Sposimo
- Nature and Environment Management Operators Srl, Firenze, Italy
| | - Giulia Sozio
- Latium Region, Environmental Department, Rome, Italy
| | - Sara Fratini
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
| | - Stefania Zanet
- Dipartimento (Dip). Scienze Veterinarie, Università di Torino, Grugliasco, Italy
| | | | - Antonio Romano
- Natural State Reserve Islands of Ventotene and S. Stefano, Ventotene, Italy
| | | | - Nicola Baccetti
- Istituto Superiore per la Protezione e la Ricerca Ambientale, Ozzano Emilia, Italy
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Mahamat AB, Groud K, Djibrine SI, Soro SD, Fourel I, Rached A, Chatron N, Benoit E, Lattard V. Exposure and resistance to anticoagulant rodenticides in invasive and endemic Chadian urban rodent species to develop a rational management strategy. PEST MANAGEMENT SCIENCE 2023. [PMID: 38031300 DOI: 10.1002/ps.7911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/01/2023]
Abstract
Rodent management involves the use of anticoagulant rodenticides (ARs). This use has resulted in the selection of numerous resistance alleles in the Vkorc1 gene, encoding the target enzyme of ARs. In Africa, although rodents are a major problem as a consequence of their transport and transmission of zoonotic pathogens, and damage to crops, the use of ARs and the spread of resistance alleles are poorly documented. We attempted to address both issues in Chad which is one of the largest countries in Africa. Owing to its location at the crossroads of central and northern Africa, Chad is representative of many African countries. METHODS Using a sampling of nearly 300 rodents composed of invasive and endemic rodents collected in six of Chad's largest cities, exposure to ARs was analyzed by their quantification in the liver; the spread of AR resistance alleles was analyzed by Vkorc1 sequencing. RESULTS We demonstrate the use of both ARs generations in Chadian cities and report the total sequencing of the Vkorc1 for 44 Mastomys natalensis with detection of two different haplotypes, the sequencing of the Vkorc1 for two other endemic rodent species, M. kollmannspergeri and Arvicanthis niloticus, and finally the detection of three new missense mutations - V29E, V69E and D127V - in R. rattus, potentially associated with resistance to ARs. DISCUSSION These results should argue for the implementation of a reasoned management of rodent populations in Africa to avoid the spread of ARs resistance alleles. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Ali Barka Mahamat
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
- Department of Biomedical and Pharmaceutical Sciences, National Higher Institute of Science and Technology, Abeche, Chad
| | - Karine Groud
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
| | - Soudy Imar Djibrine
- Department of Biomedical and Pharmaceutical Sciences, National Higher Institute of Science and Technology, Abeche, Chad
- Food Quality Control Center, N'Djamena, Chad
| | | | - Isabelle Fourel
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
| | - Antoine Rached
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
| | - Nolan Chatron
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
| | - Etienne Benoit
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
| | - Virginie Lattard
- USC 1233 RS2GP, VetAgro Sup, INRAe, University of Lyon, Lyon, France
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Yiğit N, Duman MT, Çetintürk D, Saygılı-Yiğit F, Çolak E, Çolak R. Vkorc1 gene polymorphisms confer resistance to anticoagulant rodenticide in Turkish rats. PeerJ 2023; 11:e15055. [PMID: 37151288 PMCID: PMC10162036 DOI: 10.7717/peerj.15055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/22/2023] [Indexed: 05/09/2023] Open
Abstract
Mutations in Exon 1, 2 and 3 of the vitamin K epoxide reductase complex subunit 1 (Vkorc1) gene are known to lead to anticoagulant rodenticide resistance. In order to investigate their putative resistance in rodenticides, we studied the genetic profile of the Vkorc1 gene in Turkish black rats (Rattus rattus) and brown rats (Rattus norvegicus). In this context, previously recorded Ala21Thr mutation (R. rattus) in Exon 1 region, Ile90Leu mutation (R. rattus, R. norvegicus) in Exon 2 region and Leu120Gln mutation (R. norvegicus) in Exon 3 region were identified as "missense mutations" causing amino acid changes. Ala21Thr mutation was first detected in one specimen of Turkish black rat despite the uncertainty of its relevance to resistance. Ile90Leu mutation accepted as neutral variant was detected in most of black rat specimens. Leu120Gln mutation related to anticoagulant rodenticide resistance was found in only one brown rat specimen. Furthermore, Ser74Asn, Gln77Pro (black rat) and Ser79Pro (brown rat) mutations that cause amino acid changes in the Exon 2 region but unclear whether they cause resistance were identified. In addition, "silent mutations" which do not cause amino acid changes were also defined; these mutations were Arg12Arg mutation in Exon 1 region, His68His, Ser81Ser, Ile82Ile and Leu94Leu mutations in Exon 2 region and Ile107Ile, Thr137Thr, Ala143Ala and Gln152Gln mutations in Exon 3 region. These silent mutations were found in both species except for Ser81Ser which was determined in only brown rats.
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Affiliation(s)
- Nuri Yiğit
- Biology Department/Faculty of Science, Ankara University, Ankara, Turkey
| | - Mustafa T. Duman
- Biology Department/Faculty of Science, Ankara University, Ankara, Turkey
| | - Derya Çetintürk
- Biology Department/Faculty of Science, Ankara University, Ankara, Turkey
| | - Fulya Saygılı-Yiğit
- Biotechnology Department/Faculty of Arts and Sciences, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Ercüment Çolak
- Biology Department/Faculty of Science, Ankara University, Ankara, Turkey
| | - Reyhan Çolak
- Biology Department/Faculty of Science, Ankara University, Ankara, Turkey
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Rached A, Abi Rizk G, Mahamat AB, Khoury GE, El Hage J, Harran E, Lattard V. Investigation of anticoagulant rodenticide resistance induced by Vkorc1 mutations in rodents in Lebanon. Sci Rep 2022; 12:22502. [PMID: 36577759 PMCID: PMC9797475 DOI: 10.1038/s41598-022-26638-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
Anticoagulant rodenticides (AR) remain the most effective chemical substances used to control rodents in order to limit their agricultural and public health damage in both rural and urban environments. The emergence of genetically based resistance to AR worldwide has threatened effective rodent control. This study gives a first overview of the distribution and frequency of single nucleotide polymorphism in the vitamin K epoxide reductase subcomponent 1 (Vkorc1) gene in rodents in Lebanon. In the Mus genus, we detected two missense mutations Leu128Ser and Tyr139Cys, that confer resistance to anticoagulant rodenticides in house mice and a new missense mutation Ala72Val in the Mus macedonicus species, not previously described. In the Rattus genus, we found one missense mutation Leu90Ile in the roof rat and one missense mutation Ser149Ile in the Norway rat. This is the first study to demonstrate potential resistance to AR in Lebanese rodents and therefore it provides data to pest control practitioners to choose the most suitable AR to control rodents in order to keep their efficacy.
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Affiliation(s)
- Antoine Rached
- USC 1233 RS2GP, VetAgro Sup, INRAe, Univ Lyon, 69280 Marcy l’Étoile, France
| | - Georges Abi Rizk
- grid.411324.10000 0001 2324 3572Animal Production department, Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Beirut, Lebanon
| | - Ali Barka Mahamat
- USC 1233 RS2GP, VetAgro Sup, INRAe, Univ Lyon, 69280 Marcy l’Étoile, France ,Department of Biomedical and Pharmaceutical Sciences, National Higher Institute of Science and Technology, Abeche, Chad
| | | | - Jeanne El Hage
- grid.435574.4Animal Health Laboratory, Lebanese Agricultural Research Institute, Beirut, Lebanon
| | - Elena Harran
- USC 1233 RS2GP, VetAgro Sup, INRAe, Univ Lyon, 69280 Marcy l’Étoile, France
| | - Virginie Lattard
- USC 1233 RS2GP, VetAgro Sup, INRAe, Univ Lyon, 69280 Marcy l’Étoile, France
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Damin-Pernik M, Hammed A, Giraud L, Goulois J, Benoît E, Lattard V. Distribution of non-synonymous Vkorc1 mutations in roof rats (Rattus rattus) in France and in Spain - consequences for management. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 183:105052. [PMID: 35430058 DOI: 10.1016/j.pestbp.2022.105052] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/02/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Rodent control is mainly done using anticoagulant rodenticides leading to the death of rodents through internal bleeding by targeting the VKORC1 protein. However, mutations in VKORC1 can lead to resistance to anticoagulant rodenticides that can cause treatment failure in the field. This study provides the first insight into the distribution, frequency and characterization of Vkorc1 mutations in roof rats (Rattus rattus) in France and in three administrative areas of Spain. The roof rat is present in France while it was thought to have almost disappeared with the expansion of the brown rat. Nevertheless, it has been found mainly in maritime areas. 151 roof rats out of 219 tested presented at least one missense mutation in the coding sequences of Vkorc1 gene (i.e. 69.0% of the rat). Nine Vkorc1 genotypes were detected (Y25F, A26P, R40G, S57F, W59C, W59R, H68N, Y25F/K152T and Y25F/W59R. Biochemical characterization of the consequences of these different genotypes proved that these various genotypes did not induce severe resistance to anticoagulant rodenticides. Even if many mutations of the Vkorc1 gene are present in roof rat populations in France, their management may be based in a first approach, considering the low levels of resistance induced, on the use of first-generation anticoagulants less dangerous for wildlife. The use of second-generation may be considered when treatment failure is observed or when bait consumption is limited.
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Affiliation(s)
- Marlène Damin-Pernik
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France; Liphatech, Bonnel, 47480 Pont du Casse, France
| | - Abdessalem Hammed
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France
| | - Ludivine Giraud
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France
| | - Joffrey Goulois
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France; Liphatech, Bonnel, 47480 Pont du Casse, France
| | - Etienne Benoît
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France
| | - Virginie Lattard
- USC1233 RS2GP, INRAe, VetAgro Sup, Univ Lyon, F69 280 Marcy-l'Étoile, FR, France.
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Chua C, Humaidi M, Neves ES, Mailepessov D, Ng LC, Aik J. VKORC1 mutations in rodent populations of a tropical city-state as an indicator of anticoagulant rodenticide resistance. Sci Rep 2022; 12:4553. [PMID: 35296766 PMCID: PMC8927331 DOI: 10.1038/s41598-022-08653-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 02/28/2022] [Indexed: 11/09/2022] Open
Abstract
Anticoagulant rodenticides are commonly used in rodent control because they are economical and have great deployment versatility. However, rodents with Single Nucleotide Polymorphism (SNP) mutations within the Vkorc1 gene are resistant to the effects of anticoagulant rodenticide use and this influences the effectiveness of control strategies that rely on such rodenticides. This study examined the prevalence of rat SNP mutations in Singapore to inform the effectiveness of anticoagulant rodenticide use. A total of 130 rat tail samples, comprising 83 Rattus norvegicus (63.8%) and 47 Rattus rattus complex (36.2%) were conveniently sampled from November 2016 to December 2019 from urban settings and sequenced at exon 3 of Vkorc1. Sequencing analysis revealed 4 synonymous and 1 non-synonymous mutations in Rattus rattus complex samples. A novel synonymous mutation of L108L was identified and not previously reported in other studies. Non-synonymous SNPs were not detected in the notable codons of 120, 128 and 139 in R. norvegicus, where these regions are internationally recognised to be associated with resistance from prior studies. Our findings suggest that the prevalence of anticoagulant rodenticide resistance in Singapore is low. Continued monitoring of rodenticide resistance is important for informing rodent control strategies aimed at reducing rodent-borne disease transmission.
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Affiliation(s)
- Cliff Chua
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore.
| | - Mahathir Humaidi
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore
| | - Erica Sena Neves
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore
| | - Diyar Mailepessov
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore
| | - Lee Ching Ng
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore
| | - Joel Aik
- Environmental Health Institute, National Environment Agency, 40 Scotts Road, Environment Building, #13-00, Singapore, 228231, Singapore.,Pre-Hospital and Emergency Research Centre, Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
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7
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Díaz JC, Kohn MH. A VKORC1-based SNP survey of anticoagulant rodenticide resistance in the house mouse, Norway rat and roof rat in the USA. PEST MANAGEMENT SCIENCE 2021; 77:234-242. [PMID: 32687688 DOI: 10.1002/ps.6012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 07/09/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND We conducted a vitamin K epoxide reductase subcomponent 1 (Vkorc1)-based nonsynonymous Single Nucleotide Polymorphism (nsSNP) screen with focus on the house mouse (Mus musculus domesticus), but that also considered the Norway rat (Rattus norvegicus) and roof rat (R. rattus) in the USA. RESULTS We detected six Vkorc1 nsSNPs underlying the amino-acid polymorphisms Ala21Thr, Trp59Leu, Ile104Val, Val118Leu, Leu128Ser and Tyr139Cys in house mice (average coverage/SNP; n = 182 individuals), two nsSNPs underlying Arg35Pro and Gly46Ser in the Norway rat (n = 93), with the notable absence of Tyr139Cys (n = 179), and one nsSNP underlying Tyr25Phe in the roof rat (n = 27). Inferred resistance frequency is 29.1% for mice (variability of states 0-98.8%), 6.5% (0-33.3%) for the Norway rat, and 39.3% (0-52.6%) for the roof rat based on Tyr25Phe frequencies. CONCLUSIONS Resistance detected in the USA in the 1980s likely was the consequence of Vkorc1 mutations in mice (Leu128Ser and Tyr139Cys), Norway rats (Arg35Pro) and roof rats (Tyr25Phe). Patterns of variant sharing between the USA and Europe indicate the importance of convergent evolution and gene flow in spreading resistance. The spread of nsSNPs in mice between continents appears to have been more effective than in Norway rats. We hypothesize that Arg35Pro may have originated in Norway rats in the USA, whereas Tyr139Cys variants originated in Europe. Tyr25Phe is the likely cause for resistance in roof rats. Further genetic testing in the USA is required to close sampling gaps, and population genomic data are needed to study the origin and spread of this adaptive trait.
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Affiliation(s)
- Juan C Díaz
- Department of BioSciences, Rice University, Houston, TX, USA
| | - Michael H Kohn
- Department of BioSciences, Rice University, Houston, TX, USA
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Mus musculus populations in Western Australia lack VKORC1 mutations conferring resistance to first generation anticoagulant rodenticides: Implications for conservation and biosecurity. PLoS One 2020; 15:e0236234. [PMID: 32970676 PMCID: PMC7513997 DOI: 10.1371/journal.pone.0236234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/18/2020] [Indexed: 11/28/2022] Open
Abstract
Background Humans routinely attempt to manage pest rodent populations with anticoagulant rodenticides (ARs). We require information on resistance to ARs within rodent populations to have effective eradication programs that minimise exposure in non-target species. Mutations to the VKORC1 gene have been shown to confer resistance in rodents with high proportions of resistance in mice found in all European populations tested. We screened mutations in Mus musculus within Western Australia, by sampling populations from the capital city (Perth) and a remote island (Browse Island). These are the first Australian mouse populations screened for resistance using this method. Additionally, the mitochondrial D-loop of house mice was sequenced to explore population genetic structure, identify the origin of Western Australian mice, and to elucidate whether resistance was linked to certain haplotypes. Results No resistance-related VKORC1 mutations were detected in either house mouse population. A genetic introgression in the intronic sequence of the VKORC1 gene of Browse Island house mouse was detected which is thought to have originated through hybridisation with the Algerian mouse (Mus spretus). Analysis of the mitochondrial D-loop reported two haplotypes in the house mouse population of Perth, and two haplotypes in the population of Browse Island. Conclusions Both house mouse populations exhibited no genetic resistance to ARs, in spite of free use of ARs in Western Australia. Therefore weaker anticoagulant rodenticides can be employed in pest control and eradication attempts, which will result in reduced negative impacts on non-target species. Biosecurity measures must be in place to avoid introduction of resistant house mice, and new house mouse subspecies to Western Australia.
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Emami-Khoyi A, Parbhu SP, Ross JG, Murphy EC, Bothwell J, Monsanto DM, Vuuren BJV, Teske PR, Paterson AM. De Novo Transcriptome Assembly and Annotation of Liver and Brain Tissues of Common Brushtail Possums ( Trichosurus vulpecula) in New Zealand: Transcriptome Diversity after Decades of Population Control. Genes (Basel) 2020; 11:genes11040436. [PMID: 32316496 PMCID: PMC7230921 DOI: 10.3390/genes11040436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022] Open
Abstract
The common brushtail possum (Trichosurus vulpecula), introduced from Australia in the mid-nineteenth century, is an invasive species in New Zealand where it is widespread and forms the largest self-sustained reservoir of bovine tuberculosis (Mycobacterium bovis) among wild populations. Conservation and agricultural authorities regularly apply a series of population control measures to suppress brushtail possum populations. The evolutionary consequence of more than half a century of intensive population control operations on the species’ genomic diversity and population structure is hindered by a paucity of available genomic resources. This study is the first to characterise the functional content and diversity of brushtail possum liver and brain cerebral cortex transcriptomes. Raw sequences from hepatic cells and cerebral cortex were assembled into 58,001 and 64,735 transcripts respectively. Functional annotation and polymorphism assignment of the assembled transcripts demonstrated a considerable level of variation in the core metabolic pathways that represent potential targets for selection pressure exerted by chemical toxicants. This study suggests that the brushtail possum population in New Zealand harbours considerable variation in metabolic pathways that could potentially promote the development of tolerance against chemical toxicants.
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Affiliation(s)
- Arsalan Emami-Khoyi
- Center for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Auckland Park 2006, South Africa
- Department of Pest-management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Shilpa Pradeep Parbhu
- Center for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Auckland Park 2006, South Africa
| | - James G Ross
- Department of Pest-management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Elaine C Murphy
- Department of Pest-management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Jennifer Bothwell
- Department of Pest-management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Daniela M Monsanto
- Center for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Auckland Park 2006, South Africa
| | - Bettine Jansen van Vuuren
- Center for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Auckland Park 2006, South Africa
| | - Peter R Teske
- Center for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Auckland Park 2006, South Africa
| | - Adrian M Paterson
- Department of Pest-management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
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Marquez A, Khalil RA, Fourel I, Ovarbury T, Pinot A, Rosine A, Thalmensi G, Jaffory G, Kodjo A, Benoit E, Lattard V. Resistance to anticoagulant rodenticides in Martinique could lead to inefficient rodent control in a context of endemic leptospirosis. Sci Rep 2019; 9:13491. [PMID: 31530819 PMCID: PMC6749056 DOI: 10.1038/s41598-019-49661-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 08/23/2019] [Indexed: 12/16/2022] Open
Abstract
Leptospirosis is a re-emergent worldwide zoonosis. It is endemic in Martinique where transmission conditions are favourable. Humans are usually infected through contact with water contaminated with urine of rodents. Recent human leptospirosis outbreaks in Martinique require today effective rodent management to prevent leptospirosis transmission. Nowadays, use of anticoagulant rodenticides (AR) is the main method implemented to control rodent populations. Nevertheless, intensive use of these AR has selected worldwide many VKORC1-based resistant rodent strains to AR. Our aim was to characterize the sensitivity of Martinique commensal rodents to AR to better prevent leptospirosis transmission. Resistance of house mice to first-generation and in rare cases even to second-generation ARs were clearly demonstrated in Martinique with the detection of the Y139C mutation with a very high allelic frequency of 40% and the A26T/Y139C double-mutation with an allelic frequency of 0.9%. In black rat, the most prevalent rodent in Martinique, 3 new Vkorc1 coding mutations were detected, the H68N, A115T and S149N mutations associated with moderate resistance to first generation AR. Therefore, rodent management in Martinique must be carried carefully to avoid resistance diffusion and maintain long-term effective rodent management, to be able to efficiently prevent leptospirosis transmission.
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Affiliation(s)
- Aurélie Marquez
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Rami Abi Khalil
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Isabelle Fourel
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Teddy Ovarbury
- FREDON Martinique, Route du Lycée agricole, Chemin Tolobe, Croix Rivail, 97224, Ducos, Martinique
| | - Adrien Pinot
- UMR 0874 UREP, VetAgro Sup, INRA, Univ Clermont, Clermont-Ferrand, France
| | - Armand Rosine
- FREDON Martinique, Route du Lycée agricole, Chemin Tolobe, Croix Rivail, 97224, Ducos, Martinique
| | - Gérard Thalmensi
- ARS Martinique, Centre d'affaires AGORA, Zac de l'Etang Z'abricot, Pointe des grives, CS 80 656, 97263, Fort de France Cedex, Martinique
| | - Georges Jaffory
- ARS Martinique, Centre d'affaires AGORA, Zac de l'Etang Z'abricot, Pointe des grives, CS 80 656, 97263, Fort de France Cedex, Martinique
| | - Angeli Kodjo
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Etienne Benoit
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Virginie Lattard
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France.
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Russell JC, Robins JH, Fewster RM. Phylogeography of Invasive Rats in New Zealand. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ma X, Wang D, Li N, Liu L, Tian L, Luo C, Cong L, Feng Z, Liu XH, Song Y. Low warfarin resistance frequency in Norway rats in two cities in China after 30 years of usage of anticoagulant rodenticides. PEST MANAGEMENT SCIENCE 2018; 74:2555-2560. [PMID: 29667309 DOI: 10.1002/ps.5040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 04/02/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Anticoagulant rodenticides have been widely used in rodent control in China for >30 years and resistant Norway rats have been reported. Mutations in the vitamin K epoxide reductase complex, subunit 1 (Vkorc1) gene can cause anticoagulant resistance in rodents. In this study, we analyzed the Vkorc1 polymorphisms of 681 Norway rats collected in Zhanjiang and Harbin Cities in China from 2008 to 2015 and evaluated the warfarin resistance frequency. RESULTS Analysis revealed four mutations, including three not previously reported. Two new synonymous mutations, His68His and Leu105Leu, are not associated with warfarin resistance. One new nonsynonymous mutation, Ala140Thr, was found in Zhanjiang rat samples collected in 3 years with low frequencies (3.3-4.0%) and is probably associated with warfarin resistance. Laboratory resistance tests suggested low warfarin resistance frequencies in rats from Zhanjiang (4.9-17.1%) and Harbin (0-2.5%) Cities. CONCLUSIONS Both genetic analysis and laboratory resistance tests suggested low warfarin resistance frequencies in rats from Zhanjiang and Harbin Cities. The alternate usage of first-generation anticoagulant rodenticides (FGARs) and second-generation anticoagulant rodenticides (SGARs) might represent an effective strategy against the development of warfarin resistance in Norway rats in China. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Xiaohui Ma
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dawei Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ning Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lan Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Life Science, Sichuan University, Chengdu City, China
| | - Lin Tian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chan Luo
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Lin Cong
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Zhiyong Feng
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiao-Hui Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ying Song
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Berny P, Esther A, Jacob J, Prescott C. Development of Resistance to Anticoagulant Rodenticides in Rodents. EMERGING TOPICS IN ECOTOXICOLOGY 2018. [DOI: 10.1007/978-3-319-64377-9_10] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Garg N, Singla N, Jindal V, Babbar BK. Studies on bromadiolone resistance in Rattus rattus populations from Punjab, India. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 139:24-31. [PMID: 28595918 DOI: 10.1016/j.pestbp.2017.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 04/16/2017] [Accepted: 04/19/2017] [Indexed: 06/07/2023]
Abstract
There are several reports on development of resistance to bromadiolone in different species of rodents around the globe, however, there is no such report involving systematic study from India. Hence, present study was carried out to investigate current status of bromadiolone resistance in house rat (Rattus rattus; n=154) collected from different poultry farms (n=8) based on feeding test, blood clotting response (BCR) test and molecular characterization of VKORC1 gene. Based on feeding test and BCR test, 28% rats were suspected to be resistant. Molecular analysis of VKORC1 gene of four suspected to be resistant rats having Prothrombin Time (PT) <70s, International Normalized Ratio (INR) <4.0 and died between 26 and 73days after treatment revealed no single nucleotide polymorphism (SNP) in nucleotide sequences. None of the sample under study showed complete nucleotide homology with previously reported nucleotide sequences of R. rattus. The sequences of VKORC1 gene under study can thus be considered as the novel sequences. Present investigation on molecular characterization of VKORC1 gene did not reveal any genetic resistance in Rattus rattus population against bromadiolone though rats could be considered resistant based on BCR and feeding tests.
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Affiliation(s)
- Nancy Garg
- Department of Zoology, P.I.G. Government College for Women, Jind 126102, India
| | - Neena Singla
- Department of Zoology, Punjab Agricultural University, Ludhiana 141004, India.
| | - Vikas Jindal
- Department of Entomology, Punjab Agricultural University, Ludhiana 141004, India
| | - Bhupinder K Babbar
- Department of Zoology, Punjab Agricultural University, Ludhiana 141004, India
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