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Stem-spermatogonial survival and incidence of reciprocal translocations in the. gamma. -irradiated boar

Journal Article · · Environ. Mutagen.; (United States)
;
To assess the effects of ..gamma..-radiation on stem-cell survival and incidence of reciprocal translocations, boar testes were irradiated with 100, 200, or 400 rad. Stem-cell survival was markedly affected by 100 rad (51% of control) and reduced to 34% of control by 400 rad. Production of differentiating spermatogonia renewal was incomplete at 12 weeks. Incidence of translocations peaked at 200 rad and the number occurring at 100 and 400 rad was similar. Kinetics of porcine spermatogonial renewal differs considerably from those of the rodent and, relative to the rodent, this may account for the boar's higher sensitivity to stem-cell killing and lower sensitivity to translocation.
Research Organization:
Oak Ridge Associated Universities, TN
DOE Contract Number:
AC05-76OR00033
OSTI ID:
6748662
Journal Information:
Environ. Mutagen.; (United States), Journal Name: Environ. Mutagen.; (United States) Vol. 6:2; ISSN ENMUD
Country of Publication:
United States
Language:
English

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Related Subjects

550300 -- Cytology
550400 -- Genetics
560121* -- Radiation Effects on Cells-- External Source-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL CELLS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
CELL KILLING
CHROMOSOMAL ABERRATIONS
COBALT 60
COBALT ISOTOPES
DOMESTIC ANIMALS
ELECTROMAGNETIC RADIATION
GAMETES
GAMMA RADIATION
GERM CELLS
GONADS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MALE GENITALS
MAMMALS
MINUTES LIVING RADIOISOTOPES
MUTATIONS
NUCLEI
ODD-ODD NUCLEI
ORGANS
RADIATION EFFECTS
RADIATIONS
RADIOINDUCTION
RADIOISOTOPES
SOMATIC CELLS
SPERMATOGONIA
STEM CELLS
SWINE
TESTES
VERTEBRATES
YEARS LIVING RADIOISOTOPES