Effects of space flight factors on Drosophila.
Drosophila melanogaster flies of strain D-32 were exposed aboard the Soyuz 10 spaceship. An insert with a nutritional medium and insects was placed in a small on-board thermostat (Biotherm II) providing a constant temperature (24 degrees C +/- 1 degree) for Drosophila development. The frequency of dominant lethals was determined in the females. Dominant, autosomal and sex-linked recessive lethals were estimated in hatching virgin males and females; the time of hatching was rigorously fixed. Sex-linked recessive lethals were related to certain stages of gametogenesis. The 1-5 oocyte stage showed an increased sensitivity to space-flight factors as regards the frequency of both dominant and recessive lethals.
Dubinin
N P
NP
Institute of General Genetics, USSR Academy of Sciences, Moscow, USSR.
Glembotsky
Y L
YL
Vaulina
E N
EN
Grozdova
T Y
TY
Kamshilova
E M
EM
Ivaschenko
N I
NI
Kholikova
I A
IA
Nechitailo
G S
GS
Mashinsky
A L
AL
Iordanishvili
E K
EK
D000818:Animals; D004331:Drosophila melanogaster / Q000235:genetics*; D005260:Female; D005799:Genes, Dominant; D005804:Genes, Lethal; D005808:Genes, Recessive; D006799:Housing, Animal; D008297:Male; D009154:Mutation; D009865:Oocytes / Q000502:physiology*; D013026:Space Flight; D013094:Spermatozoa / Q000502:physiology; D014893:Weightlessness