10.5061/DRYAD.RV08G
Gómez, José María
University of Granada
Perfectti, Francisco
University of Granada
Lorite, Juan
University of Granada
Data from: The role of pollinators in floral diversification in a clade of
generalist flowers
Dryad
dataset
2015
Selection - Natural
Coevolution
Plant-Insect Interaction
2015-03-02T15:51:54Z
2015-03-02T15:51:54Z
en
https://doi.org/10.1111/evo.12632
7912744 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Pollinator-mediated evolutionary divergence has seldom been explored in
generalist clades because it is assumed that pollinators in those clades
exert weak and conflicting selection. We investigate whether pollinators
shape floral diversification in a pollination generalist plant genus,
Erysimum. Species from this genus have flowers that appeal to broad
assemblages of pollinators. Nevertheless, we recently reported that it is
possible to sort plant species into pollination niches varying in the
quantitative composition of pollinators. We test here whether floral
characters of Erysimum have evolved as a consequence of shifts among
pollination niches. For this, we quantified the evolutionary lability of
the floral traits and their phylogenetic association with pollination
niches. As with pollination niches, Erysimum floral traits show weak
phylogenetic signal. Moreover, floral shape and color are phylogenetically
associated with pollination niche. In particular, plants belonging to a
pollination niche dominated by long-tongued large bees have lilac corollas
with parallel petals. Further analyses suggest, however, that changes in
color preceded changes in pollination niche. Pollinators seem to have
driven the evolution of corolla shape, whereas the association between
pollination niche and corolla color has probably arisen by lilac-flowered
Erysimum moving toward certain pollination niches for other adaptive
reasons.
Script.Erysimum.species.traitsR codes and raw dataR codes and data from
Evolution #15-0052.zip