A supergene underlies linked variation in color and morphology in a Holarctic songbird

Erik Funk, Nicholas Mason, Snæbjörn Pálsson, Tomáš Albrecht, Jeff Johnson & Scott Taylor
The genetic architecture of a phenotype can have considerable effects on the evolution of a trait or species. Characterizing genetic architecture provides insight into the complexity of a given phenotype and, potentially, the role of the phenotype in evolutionary processes like speciation. We use genome sequences to investigate the genetic basis of phenotypic variation in redpoll finches (Acanthis spp.). We demonstrate that variation in redpoll phenotype is broadly controlled by a ~55-Mb chromosomal inversion. Within...
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