Forum > Birds In The News > When It Comes To Evolution, Testes May Play A Key Role, Studies Find

Webmaster Posted 15-Jun-2016 11:17
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From Science Daily on 15-Jun-2016 11:17

The gonads play a larger role than previously thought in evolution, a pair of studies on dark-eyed juncos has found. The first paper compares the subspecies in their expression of enzymes that make testosterone within the gonad. The second paper investigates how the subspecies' gonads differ in the expression of stress hormone receptor genes, which are known to lower testosterone.


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