Evolution of Sexual Mimicry in Orchids
Author Information
Author(s): Florian P Schiestl, Salvatore Cozzolino
Primary Institution: Institute of Systematic Botany, University of Zürich
Hypothesis
Is the production of alkenes as pheromone-mimics in Ophrys a plesiomorphic state for this genus?
Conclusion
High amounts of alkenes evolved for the attraction of primarily male bees as pollinators through sensory exploitation.
Supporting Evidence
- Alkenes were present in 18 of 20 investigated species.
- Four species pollinated by male bees produced significantly larger amounts of alkenes.
- Alkene production is likely a primitive character in Ophrys.
Takeaway
Some orchids trick male bees into pollinating them by smelling like female bees, which helps them reproduce.
Methodology
The study involved mapping alkene production in flowers of selected orchid species onto their phylogeny.
Limitations
The study focused on a limited number of orchid species and may not represent all orchids.
Participant Demographics
The study included 20 orchid species from 10 genera.
Statistical Information
P-Value
0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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