title: [Correlation between the presence of a bacterial symbiont in oocytes of Parcellio dilatatus petiti, and the sterility of the cross: P.d. petiti male x P.d. dilatatus female].
abstract: A symbiotic bacteroid matroclinously transmitted is present in the ovocytes and the follicular cells of the sub-species Porcellio dilatatus petiti of the Saint-Honorat island, as well as in all hybrid females born from a petiti mother. It is absent in the Porfellio dilatatus dilatatus females (population of Poitiers) and this seems to cause the lithality in the periblastula stage -- as a result of abnormal anaphases--of practically all the embryos of the crossing : male petiti x female dilatatus.
mesh_terms: D003433:Crosses, Genetic; D003445:Crustacea / Q000382:microbiology / Q000502:physiology*; D005260:Female; D006801:Humans; D006824:Hybridization, Genetic; D007246:Infertility; D008297:Male; D009865:Oocytes / Q000382:microbiology / Q000502:physiology*; D010063:Ovum / Q000502:physiology*; D012287:Rickettsiaceae / Q000502:physiology*
vernacular_title: Corrélation entre la présence d'un symbionte bactérien dans les ovocytes de Porcellio dilatatus petiti, et la stérilité du croisement: P.d. petiti male x P.d. dilatatus female.