Ott, Tankred and Schall, Maximilian and Vogt, Robert and Oberprieler, Christoph (2022) The Warps and Wefts of a Polyploidy Complex: Integrative Species Delimitation of the Diploid Leucanthemum (Compositae, Anthemideae) Representatives. PLANTS-BASEL, 11 (14): 1878. ISSN 2223-7747
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Species delimitation-owing to the paramount role of the species rank in evolutionary, ecological, and nature conservation studies-is an essential contribution of taxonomy to biodiversity research. In an 'integrative taxonomy' approach to species delimitation on the diploid level, we searched for evolutionary significant units (the warps and wefts) that gave rise to the polyploid complex of European ox-eye daisies (Leucanthemum; Compositae-Anthemideae). Species discovery and validation methods based on genetic, ecological, geographical, and morphometric datasets were applied to test the currently accepted diploid morpho-species, i.e., morphologically delimited species, in Leucanthemum. Novel approaches were taken in the analyses of RADseq data (consensus clustering), morphometrics of reconstructed leaf silhouettes from digitized herbarium specimens, and quantification of species-distribution overlaps. We show that 17 of the 20 Leucanthemum morpho-species are supported by genetic evidence. The taxonomic rank of the remaining three morpho-species was resolved by combining genealogic, ecologic, geographic, and morphologic data in the framework of von Wettstein's morpho-geographical species concept. We herewith provide a methodological pipeline for the species delimitation in an 'integrative taxonomy' fashion using sources of evidence from genealogical, morphological, ecological, and geographical data in the philosophy of De Queiroz's "Unified Species Concept".
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PLURIFLORUM CLAN COMPOSITAE; MULTISPECIES COALESCENT; EVOLUTIONARY HISTORY; MULTIPLE GENES; SEQUENCE; MILL.; TAXA; consensus K-means; ddRAD; ecological niche modeling; geometric morphometry; integrative taxonomy; Leucanthemum; species delimitation |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Group Plant Systematics and Evolution (Prof. Dr. Christoph Oberprieler) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Feb 2024 10:42 |
| Last Modified: | 07 Feb 2024 10:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/57262 |
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