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Walter HE, Cádiz-Véliz A, Meriño BM, Villalobos-Barrantes HM, Guerrero PC. Taxonomic dissection based on molecular evidence of the Eriosycecurvispina complex (Cactaceae): identifying nine endemic species from Central Chile. PhytoKeys 2024; 237:117-139. [PMID: 38292077 PMCID: PMC10825970 DOI: 10.3897/phytokeys.237.107403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 12/08/2023] [Indexed: 02/01/2024]
Abstract
Chile's distinctive flora, geographical isolation, and complex topography collectively contribute to a notable endemic species diversity, particularly within central regions identified as critical areas for biodiversity conservation. The cactus genus Eriosyce, as currently circumscribed, encompasses seven sections, with Eriosycesect.Horridocatus presenting a notably complex species group. This study investigates the E.curvispina complex, a member of the Notocacteae tribe common in central Chile, by incorporating new populations and examining phylogenetic relationships using four plastid and one nuclear molecular marker. The phylogenetic analysis of sampled individuals identified nine independent lineages, each warranting recognition at the species rank. Despite minimal morphological differences among taxa, morphological characters were utilized to support and stabilize the DNA-based phylogenetic hypothesis. The results highlight the high taxonomic diversity in these cactus lineages and have implications for the classification of the E.curvispina complex, including new combinations and proposals of conservation status.
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Affiliation(s)
- Helmut E. Walter
- The EXSIS Project: Cactaceae Ex-Situ & In-Situ Conservation, 31860 Emmerthal, Germany
| | - Arón Cádiz-Véliz
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160C, 4030000, Concepción, Chile
- Institute of Ecology and Biodiversity (IEB), Concepción, Chile
- Millennium Institute Biodiversity of Antarctic and Sub-Antarctic Ecosystems (BASE), Concepción, Chile
| | - Beatriz M. Meriño
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160C, 4030000, Concepción, Chile
- Institute of Ecology and Biodiversity (IEB), Concepción, Chile
| | - Heidy M. Villalobos-Barrantes
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160C, 4030000, Concepción, Chile
- Escuela de Química, Universidad de Costa Rica, CP 11501-2060, San José, Costa Rica
| | - Pablo C. Guerrero
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160C, 4030000, Concepción, Chile
- Institute of Ecology and Biodiversity (IEB), Concepción, Chile
- Millennium Institute Biodiversity of Antarctic and Sub-Antarctic Ecosystems (BASE), Concepción, Chile
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