Reports

Influence of Environmental Quality on Pollen Competitive Ability in Wild Radish

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Science  29 Jun 1990:
Vol. 248, Issue 4963, pp. 1631-1633
DOI: 10.1126/science.248.4963.1631

Abstract

Pollen of Raphanus raphanistrum produced under low nutrient conditions sired fewer seeds than pollen produced under better conditions when the two types were applied on a stigma together. No difference was seen in single-donor crosses. Male mating success can be strongly influenced by the environmental conditions of pollen-bearing plants, a factor overlooked in studies of plant reproductive biology and in standard quantitative genetic crossing designs, where effects of male parent are equated with heritable genetic variation.

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