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Between-female variation in house sparrow yolk testosterone concentration is negatively associated with CYP19A1 (aromatase) mRNA expression in ovarian follicles.

General and comparative endocrinology - 1 Mar 2013

Egbert Jeremy R, Jackson Melissa F, Rodgers Buel D, Schwabl Hubert

Abstract excerpt

Maternally-derived yolk androgens influence the development and long-term phenotype of offspring in oviparous species. Between-female variation in the amounts of these yolk androgens has been associated with a number of social and environmental factors, suggesting that the variation is adaptive, but the mechanisms behind it are unknown. Using two different approaches, we tested the hypothesis that variation in...

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PMID: 23247271
DOI: 10.1016/j.ygcen.2012.12.001

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