Abstract:The repeated evolutionary transition from outcrossing to self-fertilization in Angiosperms has been suggested to occur because selfing provides reproductive assurance. This transition is commonly associated with modifications of floral traits, among them herkogamy (the spatial separation between dehiscing anthers and the receptive stigma). Here, we investigate variation in levels of herkogamy in Desmodium incanum, D. pachyrrhizum, D. subsericeum and D. uncinatum, to determine the relationship between variation… Show more
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