Reduced reproductive success in small populations of the self-incompatible Primula vulgaris
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Inbreeding depression in small populations of self-incompatible plants.
Self-incompatibility (SI) is a widespread mechanism that prevents inbreeding in flowering plants. In many species, SI is controlled by a single locus (the S locus) where numerous alleles are maintained by negative frequency-dependent selection. Inbreeding depression, the decline in fitness of selfed individuals compared to outcrossed ones, is an essential factor in the evolution of SI systems. ...
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BACKGROUND AND AIMS Small populations of rare plant species are increasingly reported to have high levels of reproductive failure. The objective of this study was to understand the principal constraints on sexual reproduction in small fragmented populations of a rare clonal self-incompatible plant. METHODS The pollinator spectrum, diversity of flower colour, natural pollination and fruit-set ...
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ژورنال
عنوان ژورنال: Journal of Ecology
سال: 2004
ISSN: 0022-0477
DOI: 10.1046/j.0022-0477.2004.00840.x