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
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