title: Thelytokous parthenogenesis by queens in the dacetine ant Pyramica membranifera (Hymenoptera: Formicidae).
abstract: Thelytokous parthenogenesis in which diploid females are produced from unfertilized eggs, was recently reported for some ant species. Here, we document thelytokous reproduction by queens in the polygynous species Pyramica membranifera. Queens that emerged in the laboratory were kept with or without workers under laboratory conditions. Independent colony founding was successful for a few queens if prey was provided. All artificial colonies, which started with a newly emerged queen and workers produced new workers and some of the colonies also produced female sexuals. Some of the female sexuals shed their wings in the laboratory and started formation of new polygynous colonies. Workers had no ovaries and thus, were obligatorily sterile.
authors.affiliation: Faculty of Agriculture, Kagawa University, Ikenobe, Miki, Kagawa 761-0795, Japan. ito@ag.kagawa-u.ac.jp
authors.forename: Fuminori
authors.initials: F
authors.lastname: Ito
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Touyama
authors.forename: Ayako
authors.initials: A
authors.lastname: Gotoh
authors.forename: Shungo
authors.initials: S
authors.lastname: Kitahiro
authors.forename: Johan
authors.initials: J
authors.lastname: Billen
mesh_terms: D000818:Animals; D001000:Ants / Q000033:anatomy & histology / Q000235:genetics / Q000502:physiology*; D004171:Diploidy; D005260:Female; D007247:Infertility, Female; D010312:Parthenogenesis / Q000235:genetics / Q000502:physiology*; D012098:Reproduction / Q000235:genetics / Q000502:physiology; D014921:Wings, Animal / Q000502:physiology