Phylogenetic insights into the correlates of dioecy in meadow-rues (Thalictrum, Ranunculaceae) Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/sj139255z

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Numerous studies have examined the evolution of sexual systems in angiosperms, but few explore the interaction between these and the evolution of pollination mode. Wind pollination is often associated with unisexual flowers, but which evolved first and played a causative role in the evolution of the other is unclear. Thalictrum, meadow-rues (Ranunculaceae), provides a unique opportunity to study the evolution of these traits because it contains insect and wind pollination and four sexual systems. We used a phylogenetic approach to reconstruct ancestral states for sexual system, pollination mode, and geographic distribution in Thalictrum, and tested for correlations to uncover the factors involved in the evolution of unisexuality and wind pollination. Our results show that dioecy, andro- and gynomonoecy evolved at least twice from hermaphroditism. Wind pollination, unisexual flowers, and New World distribution were all significantly correlated. Wind pollination may have evolved early in the genus, followed by multiple losses and gains, and likely preceded the origin of unisexual flowers in several cases; we found no evidence for unisexual flowers evolving prior to wind pollination. Given a broad scale study showing the evolution of dioecy before wind pollination, our results from a finer scale analysis highlight that different evolutionary pathways are likely to occur throughout angiosperms.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Soza, V. L., Brunet, J., Liston, A., Smith, P. S., & Di Stilio, V. S. (2012, April). Phylogenetic insights into the correlates of dioecy in meadow-rues (Thalictrum, Ranunculaceae). Molecular Phylogenetics and Evolution, 63(1), 180-192. doi:10.1016/j.ympev.2012.01.009
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2012-04-23T20:15:06Z No. of bitstreams: 1 ListonAaronBotanyPlantPathPhylogeneticInsightsCorrelates.pdf: 2046066 bytes, checksum: d514d021cce0785a8a2801efa4e8808b (MD5)
  • description.provenance : Made available in DSpace on 2012-05-09T23:01:50Z (GMT). No. of bitstreams: 1 ListonAaronBotanyPlantPathPhylogeneticInsightsCorrelates.pdf: 2046066 bytes, checksum: d514d021cce0785a8a2801efa4e8808b (MD5) Previous issue date: 2012-04
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2012-05-09T23:01:50Z (GMT) No. of bitstreams: 1 ListonAaronBotanyPlantPathPhylogeneticInsightsCorrelates.pdf: 2046066 bytes, checksum: d514d021cce0785a8a2801efa4e8808b (MD5)

Relationships

In Administrative Set:
Last modified: 07/11/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items