Pei Sun, Chaoyue Wang, Fujie Xie, Linlin Chen, Yuanyuan Zhang, Xinming Tang, Dandan Hu, Yang Gao, Ning Zhang, Zhenkai Hao, Yonglan Yu, Jingxia Suo, Xun Suo, Xianyong Liu
{"title":"The F204S mutation in adrenodoxin oxidoreductase drives salinomycin resistance in Eimeria tenella.","authors":"Pei Sun, Chaoyue Wang, Fujie Xie, Linlin Chen, Yuanyuan Zhang, Xinming Tang, Dandan Hu, Yang Gao, Ning Zhang, Zhenkai Hao, Yonglan Yu, Jingxia Suo, Xun Suo, Xianyong Liu","doi":"10.1186/s13567-024-01431-6","DOIUrl":null,"url":null,"abstract":"<p><p>Salinomycin is a polyether ionophore widely used for the treatment of coccidiosis in poultry. However, the emergence of coccidia strains resistant to salinomycin presents challenges for control efforts, and the mechanisms underlying this resistance in Eimeria remain inadequately understood. In this study, 78 stable salinomycin-resistant strains were generated through experimental evolution approaches. Whole-genome sequencing of salinomycin-resistant Eimeria tenella isolates revealed single nucleotide polymorphisms (SNPs), with 12 candidate genes harboring nonsynonymous mutations identified. To confirm the candidate gene responsible for conferring salinomycin resistance, we leveraged reverse genetic strategies and identified a key amino acid substitution (F204S) in adrenodoxin oxidoreductase (EtADR), which markedly reduced susceptibility to salinomycin. Our results elucidate the complex interactions among salinomycin resistance, parasite fitness, point mutations, and the structure of EtADR, laying the foundation for future studies on drug resistance in Eimeria and contributing to the development of targeted control strategies.</p>","PeriodicalId":23658,"journal":{"name":"Veterinary Research","volume":"55 1","pages":"170"},"PeriodicalIF":3.7000,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary Research","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1186/s13567-024-01431-6","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Salinomycin is a polyether ionophore widely used for the treatment of coccidiosis in poultry. However, the emergence of coccidia strains resistant to salinomycin presents challenges for control efforts, and the mechanisms underlying this resistance in Eimeria remain inadequately understood. In this study, 78 stable salinomycin-resistant strains were generated through experimental evolution approaches. Whole-genome sequencing of salinomycin-resistant Eimeria tenella isolates revealed single nucleotide polymorphisms (SNPs), with 12 candidate genes harboring nonsynonymous mutations identified. To confirm the candidate gene responsible for conferring salinomycin resistance, we leveraged reverse genetic strategies and identified a key amino acid substitution (F204S) in adrenodoxin oxidoreductase (EtADR), which markedly reduced susceptibility to salinomycin. Our results elucidate the complex interactions among salinomycin resistance, parasite fitness, point mutations, and the structure of EtADR, laying the foundation for future studies on drug resistance in Eimeria and contributing to the development of targeted control strategies.
期刊介绍:
Veterinary Research is an open access journal that publishes high quality and novel research and review articles focusing on all aspects of infectious diseases and host-pathogen interaction in animals.