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Article
| Open AccessA pistil-expressed pectin methylesterase confers cross-incompatibility between strains of Zea mays
Domesticated maize and some varieties of wild teosinte grow in close proximity in parts of Mexico but rarely cross-fertilize. Here the authors show that a pistil-expressed pectin methylesterase, encoded by a gene within the Teosinte crossing barrier1-s haplotype, prevents fertilization of these teosintes by incompatible pollen.
- Yongxian Lu
- , Samuel A. Hokin
- & Mathew M. S. Evans
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Article
| Open AccessReal-time divergent evolution in plants driven by pollinators
Pollinators are thought to be a driver of plant diversification, but their effects are difficult to disentangle from those of other biotic and abiotic factors. Here, the authors let plants evolve under different pollination regimes and show rapid and divergent evolution of plant height, floral traits and mating system.
- Daniel D. L. Gervasi
- & Florian P Schiestl
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Article
| Open AccessExperimental evidence of pollination in marine flowers by invertebrate fauna
Marine plants reproduce by hydrophilly, that is, the movement of pollen by water. Here, the authors show that invertebrates can also carry pollen from male to female Thalassia testudinum plants.
- Brigitta I. van Tussenbroek
- , Nora Villamil
- & Vivianne Solis-Weiss
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Article
| Open AccessDelivery of crop pollination services is an insufficient argument for wild pollinator conservation
One argument for conserving biological diversity is that it delivers beneficial ecosystem services. However, Kleijn et al.show that the economic benefits of crop pollination are delivered by only a small subset of relatively common species, arguing that threatened species should be considered separately.
- David Kleijn
- , Rachael Winfree
- & Simon G Potts
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Article |
Bird–flower visitation networks in the Galápagos unveil a widespread interaction release
Vertebrate species on islands may display broader feeding niches than their mainland counterparts in response to poorer diets. Here, Traveset et al. show that almost all Galápagos land birds exploit floral resources across the archipelago in an extensive generalized network.
- Anna Traveset
- , Jens M. Olesen
- & Ruben Heleno