title: The synaptic sequence in hydroxyurea-treated spermatocytes of Pitymys duodecimcostatus (Rodentia, Microtidae).
abstract: A number of Pitymys duodecimcostatus males from a natural population were treated with hydroxyurea, which produces a gap in the spermatogenic line, to study the synaptic sequence of meiotic prophase. The use of substaging criteria, based on the morphological characteristics of the meiotic cells themselves, gave rise to a classification scheme consistent with the chronological sequence revealed by hydroxyurea treatment, which supports the usefulness of these independent criteria. The characteristics of meiotic prophase in P. duodecimcostatus are also described and discussed.
authors.affiliation: Departamento de Biología Animal, Ecología y Genética, Facultad de Ciencias, Universidad de Granada, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Carnero
authors.forename: R
authors.initials: R
authors.lastname: Jiménez
authors.forename: M
authors.initials: M
authors.lastname: Burgos
authors.forename: A
authors.initials: A
authors.lastname: Sánchez
authors.forename: R
authors.initials: R
authors.lastname: Díaz de la Guardia
mesh_terms: D000818:Animals; D003411:Arvicolinae; D002875:Chromosomes / Q000648:ultrastructure; D006918:Hydroxyurea / Q000494:pharmacology*; D008297:Male; D008540:Meiosis; D012730:Sex Chromosomes / Q000648:ultrastructure; D013090:Spermatocytes / Q000166:cytology* / Q000187:drug effects; D013573:Synaptonemal Complex / Q000187:drug effects
chemical_list: D006918:Hydroxyurea