Macroevolutionary dynamics of nectar spurs, a key evolutionary innovation.

  title={Macroevolutionary dynamics of nectar spurs, a key evolutionary innovation.},
  author={Mario Fern{\'a}ndez‐Mazuecos and Jos{\'e} Luis Blanco‐Pastor and Ana Juan and Pau Carnicero and Alan Forrest and Marisa Alarc{\'o}n and Pablo Vargas and Beverley J. Glover},
  journal={The New phytologist},
  volume={222 2},
Floral nectar spurs are widely considered a key innovation promoting diversification in angiosperms by means of pollinator shifts. We investigated the macroevolutionary dynamics of nectar spurs in the tribe Antirrhineae (Plantaginaceae), which contains 29 genera and 300-400 species (70-80% spurred). The effect of nectar spurs on diversification was tested, with special focus on Linaria, the genus with the highest number of species. We generated the most comprehensive phylogeny of Antirrhineae… 

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