Reproductive ecology of the carnivorous plant Pinguicula moranensis (Lentibulariaceae)

Plant Biology
S G Villegas, Raúl E Alcalá

Abstract

The interaction of plants with pollinators can be a determinant of their reproductive fitness. However, information about the pollination biology of carnivorous plants is scarce. To increase knowledge of reproductive ecology of carnivorous plants we focused on Pinguicula moranensis. Specifically, based on the presence of large, zygomorphic and spurred flowers, we predicted higher reproductive fitness in cross-pollinated than in self-pollinated flowers. Within a plot of 51 m2 we characterised the reproductive phenology, including flower lifespan and stigmatic receptivity. We identified pollinators and their movement patterns within the plot. Breeding system was experimentally evaluated using hand-pollination (i.e. autonomous, self- and cross-pollination). Flowers of P. moranensis were visited by long-tongued pollinators, mainly members of the Lepidoptera. Hand-pollination experiments confirmed our prediction and suggest that flower traits might favour cross-pollination. We mainly discuss the implications of the patchy distribution of plants and behaviour of pollinators on gene movement in this plant species, as pollination between genetically related individuals could be occurring.

References

Jul 2, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Spencer C H Barrett
Aug 28, 2003·Evolution; International Journal of Organic Evolution·Celine A M Griffin, Christopher G Eckert
Jul 13, 2004·Plant Biology·K MüllerW Barthlott
May 26, 2005·Respiratory Physiology & Neurobiology·Michael S Hedrick
Sep 28, 2005·Oecologia·Jana Jersáková, Steven D Johnson
Mar 15, 1955·Proceedings of the National Academy of Sciences of the United States of America·D Steffensen
Feb 1, 1995·Evolution; International Journal of Organic Evolution·Daniel J Schoen, Tia-Lynn Ashman

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Citations

Jun 28, 2020·Annals of Botany·Krzysztof LustofinBartosz J Płachno
Sep 18, 2021·Plant Biology·M Ortuño-MendietaR E Alcalá

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