Gamma-Ray Irradiation of the Sperm of the Fish Oryzias latipes and Induction of Gynogenesis

When sperm of the fish Oryzias latipes were irradiated with γ-rays (137Cs) and allowed to fertilize normal eggs, the so-called 'Hertwig effect' was observed with a dose-dependent decrease in survival rate at low doses (0-12.5 kR) but a better survival rate at higher dose range (50-150 kR)...

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Bibliographic Details
Published in:JOURNAL OF RADIATION RESEARCH 1980-01, Vol.21 (3), p.263-270
Main Author: Ijiri, K
Format: Article
Language:English
Subjects:
Animals
Dose-Response Relationship, Radiation
Female
Fertilization - radiation effects
Fishes
Male
Marine
Oryzias latipes
Prognosis
Sperm-Ovum Interactions - radiation effects
Spermatozoa - radiation effects
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Summary:When sperm of the fish Oryzias latipes were irradiated with γ-rays (137Cs) and allowed to fertilize normal eggs, the so-called 'Hertwig effect' was observed with a dose-dependent decrease in survival rate at low doses (0-12.5 kR) but a better survival rate at higher dose range (50-150 kR) - Compared with the UV-induced Hertwig effect previously reported, the result of γ-irradiation of sperm showed differences in survival rates and in percentage of embryos exhibiting paternal characteristics. It suggested the possibility of the difference in the mechanisms of Hertwig effect caused by UV and by γ-rays.
ISSN:0449-3060
1349-9157
DOI:10.1269/jrr.21.263