@article{fdi:010093637,
  title = {{S}pontaneous parthenogenesis in the parasitoid wasp {C}otesia typhae : low frequency anomaly or evolving process ?},
  author = {{C}apdevielle {D}ulac, {C}laire and {B}enoist, {R}. and {P}aquet, {S}. and {C}alatayud, {P}aul-{A}ndr{\'e} and {O}bonyo, {J}. and {K}aiser, {L}. and {M}ougel, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}ymenopterans are haplodiploids and unlike most other {A}rthropods they do not possess sexual chromosomes. {S}ex determination typically happens via the ploidy of individuals: haploids become males and diploids become females. {A}rrhenotoky is believed to be the ancestral reproduction mode in {H}ymenopterans, with haploid males produced parthenogenetically, and diploid females produced sexually. {H}owever, a number of transitions towards thelytoky (diploid females produced parthenogenetically) have appeared in {H}ymenopterans, and in most cases populations or species are either totally arrhenotokous or totally thelytokous. {H}ere we present the case of {C}otesia typhae ({F}ernandez-{T}riana), a {B}raconidae that produces parthenogenetic females at a low frequency. {T}he phenotyping of two laboratory strains and one natural population showed that this frequency is variable, and that this rare thelytokous phenomenon also happens in the wild. {M}oreover, mated females from one of the laboratory strains produce a few parthenogenetic daughters among a majority of sexual daughters. {T}he analysis of daughters of heterozygous virgin females allowed us to show that a mechanism similar to automixis with central fusion is very likely at play in {C}. typhae. {T}his mechanism allows some parts of the genome to remain heterozygous, especially at the chromosomes' centromeres, which can be advantageous depending on the sex determination system involved. {L}astly, in most species, the origin of thelytoky is either bacterial or genetic, and an antibiotic treatment as well as {PCR} experiments did not demonstrate a bacterial cause in {C}. typhae. {T}he unusual case of low parthenogenetic frequency described in this species constitutes another example of the fascinating diversity of sex determination systems in {A}rthropods.},
  keywords = {},
  booktitle = {},
  journal = {{P}eer {C}ommunity {J}ournal},
  volume = {2},
  numero = {},
  pages = {e37 [22 ]},
  ISSN = {2804-3871},
  year = {2022},
  DOI = {10.24072/pcjournal.135},
  URL = {https://www.documentation.ird.fr/hor/fdi:010093637},
}