@article{fdi:010071395,
  title = {{R}elationship between oviposition, virulence gene expression and parasitism success in {C}otesia typhae nov. sp. parasitoid strains},
  author = {{B}enoist, {R}. and {C}hantre, {C}. and {C}apdevielle {D}ulac, {C}laire and {B}odet, {M}. and {M}ougel, {F}. and {C}alatayud, {P}aul-{A}ndr{\'e} and {D}upas, {S}t{\'e}phane and {H}uguet, {E}. and {J}eannette, {R}{\'e}mi and {O}bonyo, {J}. and {O}dorico, {C}. and {S}ilvain, {J}ean-{F}ran{\c{c}}ois and {L}e {R}ü, {B}runo and {K}aiser, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudying mechanisms that drive host adaptation in parasitoids is crucial for the efficient use of parasitoids in biocontrol programs. {C}otesia typhae nov. sp. ({F}ernandez-{T}riana) ({H}ymenoptera: {B}raconidae) is a newly described parasitoid of the {M}editerranean corn borer {S}esamia nonagrioides ({L}efebvre) ({L}epidoptera: {N}octuidae). {B}raconidae are known for their domesticated bracovirus, which is injected with eggs in the host larva to overcome its resistance. {I}n this context, we compared reproductive success traits of four {K}enyan strains of {C}. typhae on a {F}rench and a {K}enyan populations of its host. {D}ifferences were found between the four strains and the two most contrasted ones were studied more thoroughly on the {F}rench host population. {P}arasitoid offspring size was correlated with parasitism success and the expression of bracovirus virulence genes ({C}r{V}1 and {C}ystatin) in the host larva after parasitism. {H}ybrids between these two parasitoid strains showed phenotype and gene expression profiles similar to the most successful parental strain, suggesting the involvement of dominant alleles in the reproductive traits. {O}vary dissections revealed that the most successful strain injected more eggs in a single host larva than the less successful one, despite an equal initial ovocyte number in ovaries. {I}t can be expected that the amount of viral particles increase with the number of eggs injected. {T}he ability to bypass the resistance of the allopatric host may in consequence be related to the oviposition behaviour (eggs allocation). {T}he influence of the number of injected eggs on parasitism success and on virulence gene expression was evaluated by oviposition interruption experiments.},
  keywords = {{P}arasitoid ; {R}eproductive success ; {O}viposition behaviour ; {P}olydnavirus ; {N}ew host ; {B}iological control ; {KENYA}},
  booktitle = {},
  journal = {{G}enetica},
  volume = {145},
  numero = {6},
  pages = {469--479},
  ISSN = {0016-6707},
  year = {2017},
  DOI = {10.1007/s10709-017-9987-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071395},
}