Data from: Not just flowering time: a resurrection approach shows floral attraction traits are changing over time
Creators: name: Bishop, Sasha G. D.
name: Chang, Shu-Mei
name: Baucom, Regina S.
Publisher: name: Zenodo
Year: 2024
Subjects: floral traits
Global Change
Rapid adaptation

description: Contemporary anthropogenic changes in climate and landscape form a complex set of selective pressures acting on natural systems, yet, in many systems, we lack information about both whether and how organisms may adapt to these changes. In plants, research has focused on climate-induced changes in phenology and the resultant potential for disruption of plant-pollinator interactions, however, there remains a paucity of knowledge regarding how other pollinator-mediated traits may be involved in the adaptive response. Here, we use resurrection experiments to investigate the phenotypic basis of adaptation in a mixed-mating system plant, the common morning glory (Ipomoea purpurea). Specifically, we measure temporal and spatial changes in traits grouped into three categories relevant to plant-pollinator interactions - floral morphology, floral rewards, and floral phenology. We show a significant temporal increase in corolla size and shift to earlier flowering times, as well as a potential for increased investment in floral rewards, all of which are driven primarily by populations at more northern latitudes. Additionally, we find evidence for directional selection on floral morphology and phenology and evidence of balancing selection acting on anther-stigma distance. Overall, these results show an adaptive response in line with greater investment in pollinator attraction rather than self-pollination and fine-scale spatial differences in adaptive potential.
description: Floral Morphology

This data file contains floral morphology data for 15 populations distributed in the SE United States and sampled in both 2012 and 2003. Latitude and longitude for each population are included as columns.

floralMorphology.csv

 

Phenology



This data file contains date of first flower data for 23 populations distributed in the SE United States and sampled in both 2012 and 2003. Latitude and longitude for each population are included as columns.

phenology.csv

 

Floral Rewards

There are two data files, one of which contains Brix scale measurements of sugar content in nectar and the other of which contains pollen counts. Both sets of data are taken from 4 populations in the SE United States sampled in both 2012 and 2003. There is missing data for flower color in the Brix dataset - all missing data is marked with "na". 

nectarBrix.csv, pollenCount.csv

 

R Code 

R Code in markdown format plus two additional external scripts that are necessary for running the markdown file

BishopEL-2023.Rmd

pdpFigure_callDoc.R

pcv_bootstrap_figure.R
description: This dataset includes a set of phenotypes measured directly from live plants growing in greenhouse conditions. There is information both about the natural populations from which seeds were collected (population name, year of collection, and latitude/longitude) as well as measurements of floral morphology (corolla length, corolla width, and anther-stigma distance), phenology (date of first flower), and floral rewards (sugar content in nectar and pollen counts) done in three separate resurrection experiments.