Genotyping-by-sequencing resolves relationships in Polygonaceae tribe Eriogoneae
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- dc.contributor.author Pearman, Peter B.
- dc.contributor.author Alioto, Tyler
- dc.contributor.author Trotta, Jean-Remi
- dc.contributor.author Columbus, J. Travis
- dc.date.accessioned 2021-12-03T06:52:30Z
- dc.date.available 2021-12-03T06:52:30Z
- dc.date.issued 2021
- dc.description.abstract The resolution of cryptic diversity is essential for understanding the evolutionary diversification of lineages and establishing conservation priorities. We examine relationships in Eriogoneae (Polygonaceae), a diverse lineage in western North America. We ask whether Eriogonum umbellatum, a morphologically and ecologically diverse species, is monophyletic and whether its varieties represent evolutionary lineages. We use genotyping-by-sequencing to assemble a SNP dataset for 51 species in the genera Chorizanthe, Eriogonum and Sidotheca. We report a hierarchical phylogenetic analysis using maximum likelihood to estimate the evolutionary history of Eriogoneae. We illustrate admixture components for 21 populations of E. umbellatum, representing four varieties, and test for lineage structure using TreeMix. We identify strongly supported clades within Eriogoneae. Many relationships in the Eucycla + Oregonium and Latifolia clades are supported, while most relationships within the Eriogonum subg. Oligogonum clade and a clade with most Chorizanthe remain unresolved. Eriogonum congdonii resolves within the main E. umbellatum clade, while populations of three varieties of E. umbellatum are closely related to E. ursinum and are associated with serpentine soils. ADmixture and TreeMix analyses suggest E. umbellatum varieties represent evolutionary lineages. These results from SNP data are largely consistent with previous phylogenetic studies of Eriogoneae based on sequence variation. Structure within Oligogonum suggests consistent environmental association and radiation after initial colonization of serpentine. Morphology is unreliable for the infraspecific taxonomy of E. umbellatum. Additional molecular studies are needed to resolve the evolutionary relationships and ecological diversification within this species, in Oligogonum, and in Eriogoneae.
- dc.description.sponsorship This work was supported by funds from the Basque Government in support of the Terrestrial Plant Diversity group of the Department of Plant Biology and Ecology, University of the Basque Country, and an ERC Advanced Grant, FP7-IDEAS-ERC, ‘ADAPT’, project 339941 awarded to T. Brown.
- dc.format.mimetype application/pdf
- dc.identifier.citation Pearman PB, Alioto TS, Trotta JRP, Columbus JT. Genotyping-by-sequencing resolves relationships in Polygonaceae tribe Eriogoneae. Taxon. 2021;70(4):826-41. DOI: 10.1002/tax.12535
- dc.identifier.doi http://dx.doi.org/10.1002/tax.12535
- dc.identifier.issn 1996-8175
- dc.identifier.uri http://hdl.handle.net/10230/49139
- dc.language.iso eng
- dc.publisher Wiley
- dc.relation.ispartof Taxon. 2021;70(4):826-41
- dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/339941
- dc.rights © 2021 The Authors. TAXON published by John Wiley & Sons Ltd on behalf of International Association for Plant Taxonomy. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by-nc/4.0/
- dc.title Genotyping-by-sequencing resolves relationships in Polygonaceae tribe Eriogoneae
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion