Pollen competition as an asymmetric reproductive barrier between two closely related Silene species.

Abstract

Reproductive barriers are important determinants of gene flow between divergent populations or species. We studied pollen competition as a post-mating reproductive barrier between Silene dioica and S. latifolia. Gene flow between these species is extensive, but early-generation hybrids are rare. In an experiment with conspecific, heterospecific and 50 : 50… (More)
DOI: 10.1111/j.1420-9101.2009.01803.x

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