Author:
Overson Rick P.,Johnson Matthew G.,Bechen Lindsey L.,Kinosian Sylvia P.,Douglas Norman A.,Fant Jeremie B.,Hoch Peter C.,Levin Rachel A.,Moore Michael J.,Raguso Robert A.,Wagner Warren L.,Skogen Krissa A.,Wickett Norman J.
Abstract
Abstract
Background
The evening primrose family (Onagraceae) includes 664 species (803 taxa) with a center of diversity in the Americas, especially western North America. Ongoing research in Onagraceae includes exploring striking variation in floral morphology, scent composition, and breeding system, as well as the role of these traits in driving diversity among plants and their interacting pollinators and herbivores. However, these efforts are limited by the lack of a comprehensive, well-resolved phylogeny. Previous phylogenetic studies based on a few loci strongly support the monophyly of the family and the sister relationship of the two largest tribes but fail to resolve several key relationships.
Results
We used a target enrichment approach to reconstruct the phylogeny of Onagraceae using 303 highly conserved, low-copy nuclear loci. We present a phylogeny for Onagraceae with 169 individuals representing 152 taxa sampled across the family, including extensive sampling within the largest tribe, Onagreae. Deep splits within the family are strongly supported, whereas relationships among closely related genera and species are characterized by extensive conflict among individual gene trees.
Conclusions
This phylogenetic resource will augment current research projects focused throughout the family in genomics, ecology, coevolutionary dynamics, biogeography, and the evolution of characters driving diversification in the family.
Funder
National Science Foundation
Publisher
Springer Science and Business Media LLC
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