Article
Natural selection on Erysimum mediohispanicum flower shape: insights into the evolution of zygomorphy.
The American naturalist - 1 Oct 2006
Gómez José M, Perfectti Francisco, Camacho Juan Pedro M
Abstract excerpt
Paleontological and phylogenetic studies have shown that floral zygomorphy (bilateral symmetry) has evolved independently in several plant groups from actinomorphic (radially symmetric) ancestors as a consequence of strong selection exerted by specialized pollinators. Most studies focused on unraveling the developmental genetics of flower symmetry, but little is known about the adaptive significance of...
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