Author:
Jutley Jaswant K.,Stewart Alistair D.
Abstract
SummaryMale mice from congenic lines carryY-chromosomes derived from two pairs of inbred strains (CBA/FaCamSt and C57BL/FaSt; PHL/St and PHL-YH/St) on various genetic backgrounds were compared. Serum testosterone levels, and the response of target organs in castrated animals to graded doses of exogenous testerone propionate were measured. These comparisons produced evidence for twoY-chromosomal loci influencing androgen metabolism. One of these affects serum testosterone levels, with variant alleles on theY-chromosomes derived from the PHL and PHL-YH strains. The other locus influences the response to testosterone of target organs, most significantly seminal vesicle, and variant alleles are found in the CBA and C57 strains. The effects of both loci are modulated by the genetic background. The relationship of these loci to otherY-chromosomal loci in the mouse is briefly discussed.
Subject
Genetics,General Medicine
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