Venom Proteins from Parasitoid Wasps and Their Biological Functions

Autor: Sassan Asgari, Sébastien J. M. Moreau
Přispěvatelé: Institut de recherche sur la biologie de l'insecte UMR7261 (IRBI), Université de Tours-Centre National de la Recherche Scientifique (CNRS), School of Biological Sciences, University of Queensland [Brisbane], Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Centre National de la Recherche Scientifique (CNRS)-Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Institut National de la Recherche Agronomique (INRA), School of Biological Sciences [Brisbane], Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2015
Předmět:
Zdroj: Toxins
Evolutionary Applications
Evolutionary Applications, Blackwell, 2015, 7 (7), pp.2385-2412. ⟨10.3390/toxins7072385⟩
Toxins, Vol 7, Iss 7, Pp 2385-2412 (2015)
ISSN: 2072-6651
1752-4563
1752-4571
DOI: 10.3390/toxins7072385⟩
Popis: International audience; To develop efficient and safe biological control, we need to reliably identify naturalenemy species, determine their host range, and understand the mechanismsthat drive host range evolution. We investigated these points in Cotesia sesamiae,an African parasitic wasp of cereal stem borers. Phylogenetic analyses of 74 individualwasps, based on six mitochondrial and nuclear genes, revealed three lineages.We then investigated the ecological status (host plant and host insectranges in the field, and host insect suitability tests) and the biological status(cross-mating tests) of the three lineages. We found that one highly supportedlineage showed all the hallmarks of a cryptic species. It is associated with one hostinsect, Sesamia nonagrioides, and is reproductively isolated from the other twolineages by pre- and postmating barriers. The other two lineages had a more variablephylogenetic support, depending on the set of genes; they exhibited an overlappingand diversified range of host species and are not reproductively isolatedfrom one another. We discuss the ecological conditions and mechanisms thatlikely generated this ongoing speciation and the relevance of this new specialisttaxon in the genus Cotesia for biological control.
Databáze: OpenAIRE