[A study of genetic stability of male sterile mutant of maize obtained from space flighted seeds].
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.
Li
Jin-guo
JG
Institute of Genetics and Developmental Biology, CAS, Beijing, China.
Pan
Guang-tang
GT
Cao
Mo-ju
MJ
Rong
Ting-zhao
TZ
Jiang
Xing-cun
XC
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*