Article
A multispecies BCO2 beak color polymorphism in the Darwin's finch radiation.
Current biology : CB - 20 Dec 2021
Enbody Erik D, Sprehn C Grace, Abzhanov Arhat, Bi Huijuan, Dobreva Mariya P, Osborne Owen G, Rubin Carl-Johan, Grant Peter R, Grant B Rosemary, Andersson Leif
Abstract excerpt
Carotenoid-based polymorphisms are widespread in populations of birds, fish, and reptiles,1 but generally little is known about the factors affecting their maintenance in populations.2 We report a combined field and molecular-genetic investigation of a nestling beak color polymorphism in Darwin's finches. Beaks are pink or yellow, and yellow is recessive.3 Here we show that the polymorphism arose in the Galápagos...
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