Genetic Transmission of Radiation-Induced Physiological Depression in the Domestic Fowl

Abstract
Physiological responses known to be influenced by complex genetic mechanisms were selected for observation. Progeny of irradiated females and control males demonstrated minor deviations from normal body weight. However, female X1 progeny of irradiated males exhibited significant deviations from control measurements. Body weight depression apparently was transmitted in a recessive-sex-linked manner which was dependent upon both age at exposure and irradiation dosage received by the male parent. Female X1 progeny of irradiated females and control males exhibited depressed reproductive potentials, which correlated with irradiation dosage administered to the female parents. Irradiated X1 progeny of irradiated females demonstrated body weights which differed significantly from control values. The magnitude of growth depression was parallel to that demonstrated by the X0 females. A parental history of irradiation survival apparently imparts no additional radioresistance to the X1 generation.

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