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Institut Sophia Agrobiotech

UMR INRA - Univ. Nice Sophia Antipolis - Cnrs

http://www.paca.inra.fr/institut-sophia-agrobiotech_eng/

Host phylogeny can influence success of parasitic wasps

Host phylogeny can influence success of parasitic wasps (TEAPEA Team)

We tested the influence of host phylogeny on various aspects of host-parasitoid interactions, mainly preference- and performance-related traits on the host range of parasitoids. We found a strong effect of host phylogeny on overall parasitoid reproduction on the 20 host species tested, but no effect of the phylogeny of host plants. We found an effect of host phylogeny on host acceptance and sting rates (preference) from behavioral observations and for pupal survivorship (performance), showing that both classes of traits show phylogenetic conservatism with respect to host species.

 

Binodoxys communis stinging a 2nd instar Aphis glycines (photo by David Hansen, University of Minnesota). Total length of parasitoid is approximately 2mm.

Binodoxys communis stinging a 2nd instar Aphis glycines (photo by David Hansen, University of Minnesota). Total length of parasitoid is approximately 2mm.

  • Desneux N., Blahnik R., Delebecque C.J. & Heimpel G.E. (2012). Host phylogeny and host specialization in parasitoids.Ecology Letters, 15, 453-460.