@article{PAR00002689, title = {{E}volution of a polydnavirus gene in relation to parasitoid-host species immune resistance}, author = {{D}upas, {S}t{\'e}phane and {G}itau, {C}. {W}. and {B}ranca, {A}. and {L}e {R}ΓΌ, {B}runo and {S}ilvain, {J}ean-{F}ran{\c{c}}ois}, editor = {}, language = {{ENG}}, abstract = {{C}r{V}1, a polydisperse {DNA} virus (polydnavirus or {PDV}) gene contributes to the suppression of host immunity in {C}otesia genus parasitoids. {I}ts molecular evolution was analyzed in relation to levels of resistance in the sympatric host species. {N}atural selection for nonsynonymous substitutions (positive {D}arwinian selection) was observed at specific amino acid sites among {C}r{V}1 variants; particularly, between parasitoid strains immune suppressive and nonimmune suppressive to the main resistant stem borer host, {B}usseola fusca. {I}n {C}otesia sesamiae, geographic distribution of {C}r{V}1 alleles in {K}enya was correlated to the relative abundance of {B}. fusca. {T}hese results suggest that {PDV} genes evolve through natural selection and are genetically linked to factors of suppression of local host resistance. {W}e discuss the forces driving the evolution of {C}r{V}1 and its use as a marker to understand parasitoid adaptation to host resistance in biological control.}, keywords = {}, booktitle = {}, journal = {{J}ournal of {H}eredity}, volume = {99}, numero = {5}, pages = {491--499}, ISSN = {0022-1503}, year = {2008}, DOI = {10.1093/jhered/esn047}, URL = {https://www.documentation.ird.fr/hor/{PAR}00002689}, }