@article{fdi:010074839,
  title = {{I}mpact of irradiation on the reproductive traits of field and laboratory {A}n. arabiensis mosquitoes},
  author = {{P}oda, {S}. {B}. and {G}uissou, {E}. and {M}aiga, {H}. and {B}imbile-{S}omda, {S}. {N}. and {G}illes, {J}. and {R}ayaisse, {J}. {B}. and {L}ef{\`e}vre, {T}hierry and {R}oux, {O}livier and {D}abire, {R}. {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground{T}he sterile insect technique ({SIT}) aims at suppressing or decreasing insect pest populations by introducing sterile insects into wild populations. {SIT} requires the mass-production of insects and their sterilization through, for example, radiation. {H}owever, both mass-rearing and radiation can affect the life history traits of insects making them less competitive than their wild counterparts. {I}n the malaria mosquito {A}nopheles arabiensis, some progress has been made to improve the mating competitiveness of mass-reared irradiated males. {H}owever, to date, no study has explored the relative effects of colonization and irradiation on important reproductive traits in this species. {S}uch data may help to focus research efforts more precisely to improve current techniques.{M}ethods{T}wo strains of {A}n. arabiensis originating from the same locality were used: one reared in the laboratory for five generations and the second collected as late larval instars in the field prior to experimentation. {P}upae were irradiated with 95 {G}y and some adult reproductive traits, including insemination rate, fecundity, oviposition behavior, fertility and male survivorship, were assessed in different mating combinations.{R}esults{O}ur study revealed the different effects of mosquito strain and irradiation on reproductive processes. {T}he insemination rate was higher in field (67.3%) than in laboratory (54.9%) females and was negatively affected by both female and male irradiation (un-irradiated vs irradiated: 70.2 vs 51.3% in females; 67.7 vs 53.7% in males). {I}rradiated females did not produce eggs and egg prevalence was lower in the field strain (75.4%) than in the laboratory strain (83.9%). {T}he hatching rate was higher in the field strain (88.7%) than in the laboratory strain (70.6%) as well as in un-irradiated mosquitoes (96.5%) than in irradiated ones (49%). {L}arval viability was higher in the field strain (96.2%) than in the laboratory strain (78.5%) and in un-irradiated mosquitoes (97.6%) than irradiated ones (52%). {F}inally, field males lived longer than laboratory males (25.1 vs 20.5 days, respectively).{C}onclusions{O}ur results revealed that both irradiation and colonization alter reproductive traits. {H}owever, different developmental stages are not equally affected. {I}t is necessary to consider as many fitness traits as possible to evaluate the efficacy of the sterile insect technique.},
  keywords = {{E}gg retention ; {F}ecundity ; {F}ertility ; {I}nsemination ; {L}ongevity ; {M}alaria vector ; {O}viposition ; {S}terile insect technique},
  booktitle = {},
  journal = {{P}arasites and {V}ectors},
  volume = {11},
  numero = {},
  pages = {art. 641 [12 p.]},
  ISSN = {1756-3305},
  year = {2018},
  DOI = {10.1186/s13071-018-3228-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074839},
}