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Article

Chorionic Gonadotropin Has a Recent Origin Within Primates and an Evolutionary History of Selection

1 Mar 2002

Abstract excerpt

Chorionic gonadotropin (CG) is a critical signal in establishing pregnancy in humans and some other primates, but this placentally expressed hormone has not been found in other mammalian orders. The gene for one of its two subunits (CG beta subunit [CGbeta]) arose by duplication from the luteinizing hormone beta subunit gene (LHbeta), present in all mammals tested. In this study, 14 primate and related mammalian...

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PMID: 11861891
DOI: 10.1093/oxfordjournals.molbev.a004085

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Source receipt: pubmed, retrieved 7 Sept 2026.

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