Emergence of a floral colour polymorphism by pollinator-mediated overdominance

Emergence of a floral colour polymorphism by pollinator-mediated overdominance

Emergence of a floral colour polymorphism by pollinator-mediated overdominance, Published online: 08 January 2019; doi:10.1038/s41467-018-07936-x

Examples of overdominance are usually explained by deleterious effects in homozygotes. Here, Kellenberger et al. describe a case of overdominance in the floral color of the Alpine orchid Gymnadenia rhellicani apparently maintained by pollinator preferences without deleterious effects in homozygotes.

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