Infestation of a novel host plant by Tephritis conura (Diptera: Tephritidae) in northern Britain: host-range expansion or host shift?

@article{Diegisser2009InfestationOA,
  title={Infestation of a novel host plant by Tephritis conura (Diptera: Tephritidae) in northern Britain: host-range expansion or host shift?},
  author={Thorsten Diegisser and Christian Tritsch and A. Seitz and Jes Johannesen},
  journal={Genetica},
  year={2009},
  volume={137},
  pages={87-97}
}
The addition of a novel host plant to a phytophagous insect’s diet may result in subsequent host-plant specialisation, and is believed to be a key cause for speciation in this trophic group. In northern Britain, the tephritid fly Tephritis conura has experienced a unique host-plant expansion, from the melancholy thistle Cirsium heterophyllum to the marsh thistle C. palustre. Here, we examine whether the incorporation of C. palustre in the repertoire of British T. conura flies has caused genetic… CONTINUE READING

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