Chromosomal fragments transmitted through three generations in Oncopeltus (Hemiptera).
Chromosomal fragments and translocations induced by x-rays in the sperm of adult milkweed bugs, Oncopeltus fasciatus (Dallas), were detected in the meiotic cells of F(1), F(2), and F(3), males and caused high levels of sterility in lintreated progeny. The persistence of these fragments through numerous generations of cells confirmed the holokinetic nature of the milkweed bug chromosomes.
D000818:Animals; D002869:Chromosome Aberrations / Q000528:radiation effects*; D007248:Infertility, Male / Q000209:etiology*; D007313:Insecta; D008297:Male; D008540:Meiosis / Q000528:radiation effects; D011831:Radiation Genetics