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A novel locus on chromosome 1 underlies the evolution of a melanic plumage polymorphism in a wild songbird [Royal Society Open Science]

Jade Bruxaux, Christophe Thébaud

par Frédéric Magné - publié le

Understanding the mechanisms responsible for phenotypic diversification within and among species ultimately rests with linking naturally occurring mutations to functionally and ecologically significant traits. Colour polymorphisms are of great interest in this context because discrete colour patterns within a population are often controlled by just a few genes in a common environment. We investigated how and why phenotypic diversity arose and persists in the Zosterops borbonicus white-eye of Reunion (Mascarene archipelago), a colour polymorphic songbird in which all highland populations contain individuals belonging to either a brown or a grey plumage morph.(...)

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