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Dominant lethal mutations in insects with holokinetic chromosomes: irradiation of pink bollworm sperm

Journal Article · · Ann. Entomol. Soc. Am.; (United States)
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Adult males of the pink bollworm, Pectinophora gosypiella (Saunders), were irradiated with 19 and 30 krad of gamma radiation and mated with virgin, untreated females. Males treated with 19 or 30 krad of gamma radiation, at 2 to 24-h or 48 to 72-h postemergence, respectively, did not show reduced mating frequency compared with the untreated male controls. However, transfer of eupyrene sperm was reduced by treating 2 to 24-h postemergent males with 30 krad. Irradiation with 19 or 30 krad did not cause complete male sterility; 12.7 and 16.8 percent, respectively, of the fertilized eggs hatched. Eggs fertilized with irradiated sperm were examined cytologically and showed a retardation of embryonic development up to the blastoderm stage. From the blastoderm stage onward, development was parallel to those eggs which were fertilized by unirradiated sperm. Of the embryos in the groups treated with 30 and 19 krad, 51.3 to 66.6 percent, respectively, developed into fully differentiated, normal-appearing, prehatch embryos. The radiation-induced dominant lethal mutations were, generally, expressed very late in embryonic development.

OSTI ID:
7103807
Journal Information:
Ann. Entomol. Soc. Am.; (United States), Journal Name: Ann. Entomol. Soc. Am.; (United States) Vol. 69:5; ISSN AESAA
Country of Publication:
United States
Language:
English

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Related Subjects

560153* -- Radiation Effects on Animals-- Invertebrates-- (-1987)
560156 -- Radiation Effects on Animals-- Pest Control-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADULTS
ANIMALS
ARTHROPODS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGY
BOLLWORM
CHROMOSOMES
CYTOLOGY
DOMINANT MUTATIONS
EGGS
ELECTROMAGNETIC RADIATION
EMBRYOS
FERTILITY
GAMETES
GAMMA RADIATION
GENETIC EFFECTS
GENETIC RADIATION EFFECTS
GERM CELLS
HATCHING
INSECTS
INVERTEBRATES
IONIZING RADIATIONS
IRRADIATION
MALES
MATING
MOTHS
MUTATIONS
ONTOGENESIS
RADIATION EFFECTS
RADIATIONS
RADIOSTERILIZATION
SPERMATOZOA
STERILITY
STERILIZATION