Preferential pollination of yellow-flowered morphs of Raphanus raphanistrum by Pieris and Eristalis spp.

作者: Q. O. N. KAY

DOI: 10.1038/261230A0

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摘要: COROLLA-COLOUR polymorphisms occur in wild populations of many angiosperms, but little is known the selective factors that maintain them. Valentine has suggested yellow/white corolla-colour may be adaptively neutral1. I have observed extremely strong discrimination by some insect pollinators between yellow and white forms polymorphic radish. These observations, which are described below, indicate differences adaptive importance this similar cases.

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