Evolution of a Polydnavirus Gene in Relation to Parasitoid-Host Species Immune Resistance | Zendy

Stéphane Dupas | Zendy; Catherine Gitau | Zendy; Antoine Branca | Zendy; B. P. Le Rü | Zendy; JeanFrançois Silvain | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Evolution of a Polydnavirus Gene in Relation to Parasitoid-Host Species Immune Resistance

Author(s) -

Stéphane Dupas,

Catherine Gitau,

Antoine Branca,

B. P. Le Rü,

JeanFrançois Silvain

Publication year - 2008

Publication title -

journal of heredity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 92

eISSN - 1471-8505

pISSN - 0022-1503

DOI - 10.1093/jhered/esn047

Subject(s) - biology , parasitoid , nonsynonymous substitution , sympatric speciation , host (biology) , braconidae , natural selection , molecular evolution , genetics , gene , allele , evolutionary biology , adaptation (eye) , zoology , selection (genetic algorithm) , phylogenetics , genome , artificial intelligence , computer science , neuroscience

CrV1, a polydisperse DNA virus (polydnavirus or PDV) gene contributes to the suppression of host immunity in Cotesia genus parasitoids. Its molecular evolution was analyzed in relation to levels of resistance in the sympatric host species. Natural selection for nonsynonymous substitutions (positive Darwinian selection) was observed at specific amino acid sites among CrV1 variants; particularly, between parasitoid strains immune suppressive and nonimmune suppressive to the main resistant stem borer host, Busseola fusca. In Cotesia sesamiae, geographic distribution of CrV1 alleles in Kenya was correlated to the relative abundance of B. fusca. These results suggest that PDV genes evolve through natural selection and are genetically linked to factors of suppression of local host resistance. We discuss the forces driving the evolution of CrV1 and its use as a marker to understand parasitoid adaptation to host resistance in biological control.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research