Smith, L.T. and Magdalena, C. and Przelomska, N.A.S. and Pérez-Escoba, O.A. and Melgar-Gómez, D.G. and Beck, S. and Negrão, R. and Mian, S. and Leitch, I.J. and Dodsworth, Steven and Maurin, O. and Ribero-Guardia, G. and Salazar, C.D. and Gutierrez-Sibauty, G. and Antonelli, A. and Monro, A.K. (2022) Revised species delimitation in the giant water lily genus Victoria (Nymphaeaceae) confirms a new species and has implications for its conservation. Frontiers in Plant Science 13 , ISSN 1664-462X.
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Abstract
Reliably documenting plant diversity is necessary to protect and sustainably benefit from it. At the heart of this documentation lie species concepts and the practical methods used to delimit taxa. Here, we apply a total-evidence, iterative methodology to delimit and document species in the South American genus Victoria (Nymphaeaceae). The systematics of Victoria has thus far been poorly characterized due to difficulty in attributing species identities to biological collections. This research gap stems from an absence of type material and biological collections, also the confused diagnosis of V. cruziana. With the goal of improving systematic knowledge of the genus, we compiled information from historical records, horticulture and geography and assembled a morphological dataset using citizen science and specimens from herbaria and living collections. Finally, we generated genomic data from a subset of these specimens. Morphological and geographical observations suggest four putative species, three of which are supported by nuclear population genomic and plastid phylogenomic inferences. We propose these three confirmed entities as robust species, where two correspond to the currently recognized V. amazonica and V. cruziana, the third being new to science, which we describe, diagnose and name here as V. boliviana Magdalena and L. T. Sm. Importantly, we identify new morphological and molecular characters which serve to distinguish the species and underpin their delimitations. Our study demonstrates how combining different types of character data into a heuristic, total-evidence approach can enhance the reliability with which biological diversity of morphologically challenging groups can be identified, documented and further studied.
Metadata
| Item Type: | Article |
|---|---|
| Keyword(s) / Subject(s): | Victoria, heuristic species concept, morphology, population genomics, Victorian era, Mamoré Rive, molecular diagnosis of species, divergence times |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences |
| Research Centres and Institutes: | Structural Molecular Biology, Institute of (ISMB) |
| Depositing User: | Steven Dodsworth |
| Date Deposited: | 27 Sep 2024 05:17 |
| Last Modified: | 27 Sep 2024 05:26 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/54020 |
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