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Incidence and Diversity of Torix Rickettsia-Odonata Symbioses.
Thongprem, Panupong; Davison, Helen R; Thompson, David J; Lorenzo-Carballa, M Olalla; Hurst, Gregory D D.
Afiliación
  • Thongprem P; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZB, UK.
  • Davison HR; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZB, UK.
  • Thompson DJ; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZB, UK.
  • Lorenzo-Carballa MO; ECOEVO Group, Universidade de Vigo, E.E. Forestal, Campus Universitario A Xunqueira, 36005, Pontevedra, Spain.
  • Hurst GDD; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7ZB, UK. g.hurst@liverpool.ac.uk.
Microb Ecol ; 81(1): 203-212, 2021 Jan.
Article en En | MEDLINE | ID: mdl-32770272
Heritable microbes are an important component of invertebrate biology, acting both as beneficial symbionts and reproductive parasites. Whilst most previous research has focussed on the 'Wolbachia pandemic', recent work has emphasised the importance of other microbial symbionts. In this study, we present a survey of odonates (dragonflies and damselflies) for torix group Rickettsia, following previous research indicating that this clade can be common in other aquatic insect groups. PCR assays were used to screen a broad range of odonates from two continents and revealed 8 of 76 species tested were infected with Rickettsia. We then conducted further deeper screening of UK representatives of the Coenagrionidae damselfly family, revealing 6 of 8 UK coenagrionid species to be positive for torix Rickettsia. Analysis of Rickettsia gene sequences supported multiple establishments of symbiosis in the group. Some strains were shared between UK coenagrionid species that shared mtDNA barcodes, indicating a likely route for mitochondrial introgression between sister species. There was also evidence of coinfecting Rickettsia strains in two species. FISH analysis indicated Rickettsia were observed in the ovarioles, consistent with heritable symbiosis. We conclude that torix Rickettsia represent an important associate of odonates, being found in a broad range of species from both Europe and South America. There is evidence that coinfection can occur, vertical transmission is likely, and that symbiont movement following hybridisation may underpin the lack of 'barcoding gap' between well-established species pairs in the genus. Future work should establish the biological significance of the symbioses observed.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rickettsia / Infecciones por Rickettsia / Simbiosis / Odonata Tipo de estudio: Incidence_studies / Risk_factors_studies Límite: Animals Idioma: En Revista: Microb Ecol Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rickettsia / Infecciones por Rickettsia / Simbiosis / Odonata Tipo de estudio: Incidence_studies / Risk_factors_studies Límite: Animals Idioma: En Revista: Microb Ecol Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos