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Comparative population genetic structure of two ixodid tick species (Acari:Ixodidae) (Ixodes ovatus and Haemaphysalis flava) in Niigata prefecture, Japan.
Regilme, Maria Angenica F; Sato, Megumi; Tamura, Tsutomu; Arai, Reiko; Sato, Marcello Otake; Ikeda, Sumire; Gamboa, Maribet; Monaghan, Michael T; Watanabe, Kozo.
Afiliación
  • Regilme MAF; Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan; Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan.
  • Sato M; Graduate School of Health Sciences, Niigata University, Niigata 951-8518, Japan.
  • Tamura T; Niigata Prefectural Institute of Public Health and Environmental Sciences, Niigata 950-2144, Japan.
  • Arai R; Niigata Prefectural Institute of Public Health and Environmental Sciences, Niigata 950-2144, Japan.
  • Sato MO; Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi 321-0293, Japan.
  • Ikeda S; Research Laboratories, Research and Development Headquarters, Earth Corporation, Hyogo 678-0192, Japan.
  • Gamboa M; Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan; Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan.
  • Monaghan MT; Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin 12587, Germany; Institut für Biologie, Freie Universität Berlin, Berlin 14195, Germany.
  • Watanabe K; Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan; Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan. Electronic address: watanabe.kozo.mj@ehime-u.ac.jp.
Infect Genet Evol ; 94: 104999, 2021 10.
Article en En | MEDLINE | ID: mdl-34256167
Ixodid ticks (Acari:Ixodidae) are essential vectors of tick-borne diseases in Japan. In this study, we characterized the population genetic structure and inferred genetic divergence in two widespread and abundant ixodid species, Ixodes ovatus and Haemaphysalis flava. Our hypothesis was that genetic divergence would be high in I. ovatus because of the low mobility of their small rodent hosts of immature I. ovatus would limit their gene flow compared to more mobile avian hosts of immature H. flava. We collected 320 adult I. ovatus from 29 locations and 223 adult H. flava from 17 locations across Niigata Prefecture, Japan, and investigated their genetic structure using DNA sequences from fragments of two mitochondrial gene regions, cox1 and the 16S rRNA gene. For I. ovatus, pairwise FST and analysis of molecular variance (AMOVA) analyses of cox1 and 16S sequences indicated significant genetic variation among populations, whereas both markers showed non-significant genetic variation among locations for H. flava. A cox1 gene tree and haplotype network revealed three genetic groups of I. ovatus. One of these groups consisted of haplotypes distributed at lower altitudes (251-471 m.a.s.l.). The cox1 sequences of I. ovatus from Japan clustered separately from I. ovatus sequences reported from China, suggesting the potential for cryptic species in Japan. Our results support our hypothesis and suggest that the host preference of ticks at the immature stage may influence the genetic structure of the ticks. This information may be important for understanding the tick-host interactions in the field to better understand the tick-borne disease transmission and in designing an effective tick control program.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / ARN Ribosómico 16S / Complejo IV de Transporte de Electrones / Ixodidae / Proteínas de Artrópodos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2021 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / ARN Ribosómico 16S / Complejo IV de Transporte de Electrones / Ixodidae / Proteínas de Artrópodos Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2021 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Países Bajos