Global distribution and evolutionary transitions of floral symmetry in angiosperms
Cite this dataset
Wang, Yunyun et al. (2023). Global distribution and evolutionary transitions of floral symmetry in angiosperms [Dataset]. Dryad. https://doi.org/10.5061/dryad.ghx3ffbrh
Abstract
Floral symmetry plays a crucial role in plant-pollinator interactions and has remarkable impacts on angiosperm evolution. However, the spatiotemporal patterns in floral symmetry and drivers of these patterns remain poorly known. Here, using global distributions and floral symmetry data of 280,140 angiosperm species, we presented the global geographic and evolutionary patterns of floral symmetry composition and demonstrated the climatic drivers of these patterns. We found that the frequency of actinomorphic (radial) species increased with latitude, while that of zygomorphic (bilateral) species decreased. Solar radiation, present-day temperature and Quaternary temperature change explained the geographic variation in floral symmetry. Evolutionary transitions from actinomorphy to zygomorphy dominated floral symmetry evolution, although the rate of this transition decreased through the Cenozoic associated with decreasing paleo-temperature. Our study provides novel insights into the ecology and evolution of angiosperm floral symmetry and suggests that climate change may influence species distributions via its effect on floral symmetry.
Funding
Strategic Priority Research Program of Chinese Academy of Sciences, Award: XDB31000000
Ministry of Science and Technology of the People's Republic of China, Award: 2017YFA0605101
Ministry of Science and Technology of the People's Republic of China, Award: 2018YFA0606104
National Natural Science Foundation of China, Award: 32125026
National Natural Science Foundation of China, Award: 31901216
National Natural Science Foundation of China, Award: 31988102
National Natural Science Foundation of China, Award: 2020JJ5977
Norwegian Metacenter for Computational Science, Award: NN9601K