title: [A study of genetic stability of male sterile mutant of maize obtained from space flighted seeds].
abstract: OBJECTIVE
  To select a male sterile mutant of maize through space flight for production application.
  
  
  METHODS
  Air dried seeds of maize (Chuan Dan No. 9) were carried to space for 15 d. After returned to the earth, a male sterile mutant was selected and a sterile line was obtained through direction breeding.
  
  
  RESULTS
  It was found that the sterile material was thoroughly abortive. The sterile was trail stable and expressed a genetic feature of single recessive gene controlled nucleus sterility.
  
  
  CONCLUSIONS
  The appearance of male sterile mutant was due to gene mutation caused by space conditions.
authors.affiliation: Institute of Genetics and Developmental Biology, CAS, Beijing, China.
authors.forename: Jin-guo
authors.initials: JG
authors.lastname: Li
authors.forename: Guang-tang
authors.initials: GT
authors.lastname: Pan
authors.forename: Mo-ju
authors.initials: MJ
authors.lastname: Cao
authors.forename: Ting-zhao
authors.initials: TZ
authors.lastname: Rong
authors.forename: Xing-cun
authors.initials: XC
authors.lastname: Jiang
mesh_terms: D001947:Breeding; D017343:Genes, Plant; D005808:Genes, Recessive; D009154:Mutation; D012098:Reproduction / Q000502:physiology; D012639:Seeds / Q000235:genetics*; D013026:Space Flight; D014893:Weightlessness; D003313:Zea mays / Q000235:genetics*