Longevity and Mortality Distributions of Mice With and Without X-Ray Exposure to 45 Generations of Male Progenitors
Autor: | Mary R. Brooks, J. F. Spalding |
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Rok vydání: | 1972 |
Předmět: | |
Zdroj: | Experimental Biology and Medicine. 139:15-18 |
ISSN: | 1535-3699 1535-3702 |
DOI: | 10.3181/00379727-139-36066 |
Popis: | SummaryLongevity and mortality distributions were observed on two H-2 genotype substrains of mice within each of two lines. Two substrains (H-2f and H-2k) were from 45 generations of X-irradiated male progenitors, and two were from nonirradiated progenitors with the same degree of inbreeding. Lifespan differed significantly for H-2 genotypes within the two lines but not for the same genotypes between lines. It was concluded that life shortening was not a genetic consequence of 45 generations of exposure to over 4500 times the background radiation level. The data also suggest a single-gene effect on longevity. |
Databáze: | OpenAIRE |
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