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Gutiérrez AV, Filippi CV, Aguirre NC, Puebla AF, Acuña CV, Taboada GM, Ortega-Baes FP. Development of novel SSR molecular markers using a Next-Generation Sequencing approach (ddRADseq) in Stetsonia coryne (Cactaceae). AN ACAD BRAS CIENC 2021; 93:e20201778. [PMID: 34468492 DOI: 10.1590/0001-3765202120201778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 04/08/2021] [Indexed: 12/14/2022] Open
Abstract
The Cactaceae family is native to the American continent with several centers of diversity. In South America, one of these centers is the Central Andes and many species are considered to be threatened or vulnerable according to the International Union for Conservation of Nature (IUCN). Stetsonia coryne is an emblematic giant columnar cacti of the Chaco phytogeographic province. It has an extensive geographical distribution in many countries of the continent. However, to date there are no specific molecular markers for this species, neither reports of population genetic variability studies, such as for many cactus species. The lack of information is fundamentally due to the lack of molecular markers that allow these studies. In this work, by applying a Genotyping by Sequencing (GBS) technique, we developed polymorphic SSR markers for the Stetsonia coryne and evaluated their transferability to phylogenetically close species, in order to account for a robust panel of molecular markers for multispecies-studies within Cactaceae.
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Affiliation(s)
- Angela Verónica Gutiérrez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425 Ciudad Autónoma de Buenos Aires, Argentina.,Laboratorio de Investigaciones Botánicas (LABIBO), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Avenida Bolivia 5150, 4400 Salta-Salta, Argentina.,Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), formerly Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Nicolás Repetto y de los Reseros s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Carla Valeria Filippi
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425 Ciudad Autónoma de Buenos Aires, Argentina.,Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), formerly Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Nicolás Repetto y de los Reseros s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Natalia Cristina Aguirre
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425 Ciudad Autónoma de Buenos Aires, Argentina.,Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), formerly Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Nicolás Repetto y de los Reseros s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Andrea Fabiana Puebla
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), formerly Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Nicolás Repetto y de los Reseros s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Cintia Vanesa Acuña
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), formerly Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Nicolás Repetto y de los Reseros s/n, B1686IGC, Hurlingham, Buenos Aires, Argentina
| | - Gisel María Taboada
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425 Ciudad Autónoma de Buenos Aires, Argentina.,Laboratorio de Investigaciones Botánicas (LABIBO), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Avenida Bolivia 5150, 4400 Salta-Salta, Argentina
| | - Francisco Pablo Ortega-Baes
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425 Ciudad Autónoma de Buenos Aires, Argentina.,Laboratorio de Investigaciones Botánicas (LABIBO), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Avenida Bolivia 5150, 4400 Salta-Salta, Argentina
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Ossa CG, Montenegro P, Larridon I, Pérez F. Response of xerophytic plants to glacial cycles in southern South America. ANNALS OF BOTANY 2019; 124:15-26. [PMID: 30715148 PMCID: PMC6676391 DOI: 10.1093/aob/mcy235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 12/03/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND AND AIM Quaternary glaciations strongly affected the distribution of species from arid and semi-arid environments, as temperature drops were accompanied by strong fluctuations in rainfall. In this study, we examined the response of xerophytic species to glacial cycles, determining the genetic patterns and climatic niche of Echinopsis chiloensis var. chiloensis, an endemic columnar cactus of arid and semi-arid regions of Chile. METHODS We analysed 11 polymorphic microsatellites for 130 individuals from 13 populations distributed across the entire distribution of the species. We examined genetic diversity and structure, identified possible patterns of isolation by distance (IBD) and tested two competing population history scenarios using Approximate Bayesian Computation. The first scenario assumes a constant population size while the second includes a bottleneck in the southern population. The latter scenario assumed that the southernmost populations experienced a strong contraction during glaciation, followed by a postglacial expansion; by contrast, the area of the northernmost populations remained as a stable refugium. We also used ecological niche modelling (ENM) to evaluate the location and extension of suitable areas during the Last Glacial Maximum (LGM) and the mid-Holocene. KEY RESULTS We found a decline in genetic diversity towards high latitudes and a significant IBD pattern that together with ENM predictions suggest that E. chiloensis var. chiloensis experienced range contraction northwards during wet-cold conditions of the LGM, followed by expansion during aridification of the mid-Holocene. In addition to IBD, we detected the presence of a strong barrier to gene flow at 32°30'S, which according to coalescence analysis occurred 44 kyr BP. The resulting genetic clusters differed in realized climatic niche, particularly in the variables related to precipitation. CONCLUSIONS Our results suggest that the cactus E. chiloensis var. chiloensis experienced range contraction and fragmentation during the wet-cold conditions of the LGM, which may have facilitated ecological differentiation between northern and southern populations, promoting incipient speciation.
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Affiliation(s)
- Carmen G Ossa
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile
- Escuela de Medicina Veterinaria, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Paz Montenegro
- Institute of Ecology and Biodiversity (IEB), Santiago, Chile
- Departamento de Ciencias Ecológicas, Universidad de Chile, Santiago, Chile
| | - Isabel Larridon
- Royal Botanic Gardens, Kew, Richmond, Surrey, UK
- Research Group Spermatophytes, Department of Biology, Ghent University, Ghent, Belgium
| | - Fernanda Pérez
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile
- Institute of Ecology and Biodiversity (IEB), Santiago, Chile
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