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Dellinger AS, Lagomarsino L, Michelangeli F, Dullinger S, Smith SD. The Sequential Direct and Indirect Effects of Mountain Uplift, Climatic Niche, and Floral Trait Evolution on Diversification Dynamics in an Andean Plant Clade. Syst Biol 2024; 73:594-612. [PMID: 38554255 PMCID: PMC11377192 DOI: 10.1093/sysbio/syae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 02/28/2024] [Accepted: 04/11/2024] [Indexed: 04/01/2024] Open
Abstract
Why and how organismal lineages radiate is commonly studied through either assessing abiotic factors (biogeography, geomorphological processes, and climate) or biotic factors (traits and interactions). Despite increasing awareness that both abiotic and biotic processes may have important joint effects on diversification dynamics, few attempts have been made to quantify the relative importance and timing of these factors, and their potentially interlinked direct and indirect effects, on lineage diversification. We here combine assessments of historical biogeography, geomorphology, climatic niche, vegetative, and floral trait evolution to test whether these factors jointly, or in isolation, explain diversification dynamics of a Neotropical plant clade (Merianieae, Melastomataceae). After estimating ancestral areas and the changes in niche and trait disparity over time, we employ Phylogenetic Path Analyses as a synthesis tool to test eleven hypotheses on the individual direct and indirect effects of these factors on diversification rates. We find strongest support for interlinked effects of colonization of the uplifting Andes during the mid-Miocene and rapid abiotic climatic niche evolution in explaining a burst in diversification rate in Merianieae. Within Andean habitats, later increases in floral disparity allowed for the exploitation of wider pollination niches (i.e., shifts from bee to vertebrate pollinators), but did not affect diversification rates. Our approach of including both vegetative and floral trait evolution, rare in assessments of plant diversification in general, highlights that the evolution of woody habit and larger flowers preceded the colonization of the Andes, but was likely critical in enabling the rapid radiation in montane environments. Overall, and in concert with the idea that ecological opportunity is a key element of evolutionary radiations, our results suggest that a combination of rapid niche evolution and trait shifts was critical for the exploitation of newly available niche space in the Andes in the mid-Miocene. Further, our results emphasize the importance of incorporating both abiotic and biotic factors into the same analytical framework if we aim to quantify the relative and interlinked effects of these processes on diversification.
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Affiliation(s)
- Agnes S Dellinger
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Vienna, Austria
- Ecology and Evolutionary Biology, University of Colorado Boulder, 1800 Colorado Ave., Boulder, CO 80309-0334, USA
| | - Laura Lagomarsino
- Shirley C. Tucker Herbarium, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
| | - Fabián Michelangeli
- Institute of Systematic Botany, The New York Botanical Garden, 2900 Southern Blvd, Bronx, NY 10458, USA
| | - Stefan Dullinger
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Vienna, Austria
| | - Stacey D Smith
- Ecology and Evolutionary Biology, University of Colorado Boulder, 1800 Colorado Ave., Boulder, CO 80309-0334, USA
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Bedoya AM. Botany and geogenomics: Constraining geological hypotheses in the neotropics with large-scale genetic data derived from plants. AMERICAN JOURNAL OF BOTANY 2024; 111:e16306. [PMID: 38557829 DOI: 10.1002/ajb2.16306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 01/24/2024] [Indexed: 04/04/2024]
Abstract
Decades of empirical research have revealed how the geological history of our planet shaped plant evolution by establishing well-known patterns (e.g., how mountain uplift resulted in high rates of diversification and replicate radiations in montane plant taxa). This follows a traditional approach where botanical data are interpreted in light of geological events. In this synthesis, I instead describe how by integrating natural history, phylogenetics, and population genetics, botanical research can be applied alongside geology and paleontology to inform our understanding of past geological and climatic processes. This conceptual shift aligns with the goals of the emerging field of geogenomics. In the neotropics, plant geogenomics is a powerful tool for the reciprocal exploration of two long standing questions in biology and geology: how the dynamic landscape of the region came to be and how it shaped the evolution of the richest flora. Current challenges that are specific to analytical approaches for plant geogenomics are discussed. I describe the scale at which various geological questions can be addressed from biological data and what makes some groups of plants excellent model systems for geogenomics research. Although plant geogenomics is discussed with reference to the neotropics, the recommendations given here for approaches to plant geogenomics can and should be expanded to exploring long-standing questions on how the earth evolved with the use of plant DNA.
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Affiliation(s)
- Ana M Bedoya
- Department of Biological Sciences, Louisiana State University, Baton Rouge, 70803, LA, USA
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Alcantara DMC, Graciolli G, Antunes Junior M, Toma R, Nihei SS. Biogeographical events, not cospeciation, might be the main drivers in the historical association between Noctiliostrebla species (Streblidae) and their bulldog bat hosts. Biol J Linn Soc Lond 2022. [DOI: 10.1093/biolinnean/blac097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
The genus Noctiliostrebla Wenzel (Diptera: Streblidae) stands out for its high degree of specificity exhibited in relation to bat species of the genus Noctilio Linnaeus and provides an exciting system for understanding the history behind host–parasite associations. Here, we present a phylogeny of Noctiliostrebla based on an analysis of DNA sequences and morphological characters, along with cophylogenetic and biogeographical analyses. Our results strongly support the monophyly of Noctiliostrebla, but with uncertainties within the genus. With a low frequency of cospeciation events explaining the associations between hosts and parasites, cophylogenetic analyses did not show an overall congruence between the host and parasite phylogenies. Indeed, two parallel histories were recovered in the host–parasite associations, which might indicate that niche segregation is determined evolutionarily, facilitating the coexistence of parasites and promoting diversification. Biogeographical analysis showed a strong spatial congruence between disjunct distributions of Noctiliostrebla and major river basins in South America and with areas of higher elevation, which might be associated with the glacial periods throughout the Pliocene and Pleistocene. Overall, our findings suggest an agreement with the expectations of the ‘Stockholm paradigm’ framework, in which biogeographical events and ecological factors act as important components to explain the associations, instead of cospeciation events.
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Affiliation(s)
- Daniel Maximo Correa Alcantara
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo , São Paulo , Brazil
- Fundação Oswaldo Cruz de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul , Brazil
| | - Gustavo Graciolli
- Setor de Zoologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul , Brazil
| | - Manuel Antunes Junior
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo , São Paulo , Brazil
| | - Ronaldo Toma
- Fundação Oswaldo Cruz de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul , Brazil
| | - Silvio Shigueo Nihei
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo , São Paulo , Brazil
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Hernández C, Alvarado M, Salgado-Roa FC, Ballesteros N, Rueda-M N, Oliveira J, Alevi KCC, da Rosa JA, Urbano P, Salazar C, Ramírez JD. Phylogenetic relationships and evolutionary patterns of the genus Psammolestes Bergroth, 1911 (Hemiptera: Reduviidae: Triatominae). BMC Ecol Evol 2022; 22:30. [PMID: 35279099 PMCID: PMC8918316 DOI: 10.1186/s12862-022-01987-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 03/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The evolutionary history of biodiversity in South America has been poorly studied in the seasonal dry tropical forest (SDTF). Species diversification in this ecosystem may have a twofold explanation. First, intermittent connections in the middle and late Pleistocene promoted species dispersal and/or genetic connectivity between lineages isolated in disjunct patches of forest. Second, allopatric speciation proceeded immediately after the formation and colonization of the SDTF in the Neogene. Here we studied the diversification of Psammolestes, a genus endemic of the SDTF and naturally infected with Trypanosoma cruzi (agent of Chagas disease), using a combination of phylogenetic, population genetics and niche model methods, and evaluated the reliability of the three morphospecies currently recognized. RESULTS Our multilocus analyses recovered P. coreodes and P. tertius in a monophyletic clade sister to P. arthuri. Species delimitation tests recovered these lineages as different species despite the shared genetic variation observed between P. coreodes and P. tertius in five genes. Also, genetic variation of the genus clustered in three groups that were consistent with the three morphospecies. Our demographic model predicted a scenario of divergence in absence of gene flow, suggesting that mixed haplotypes may be the result of shared ancestral variation since the divergence of the subtropical-temperate species P. coreodes and P. tertius. In contrast, the tropical species P. arthuri was highly differentiated from the other two in all tests of genetic structure, and consistently, the Monmonier's algorithm identified a clear geographical barrier that separates this species from P. coreodes and P. tertius. CONCLUSIONS We found three genetically structured lineages within Psammolestes that diverged in absence of gene flow in the late Miocene. This result supports a scenario of species formation driven by geographical isolation rather than by divergence in the face of gene flow associated with climatic oscillations in the Pleistocene. Also, we identified the Amazon basin as a climatic barrier that separates tropical from subtropical-temperate species, thus promoting allopatric speciation after long range dispersion. Finally, each species of Psammolestes occupies different climatic niches suggesting that niche conservatism is not crucial for species differentiation. These findings influence the current vector surveillance programs of Chagas disease in the region.
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Affiliation(s)
- Carolina Hernández
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Mateo Alvarado
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Fabian C Salgado-Roa
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.,School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Nathalia Ballesteros
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Nicol Rueda-M
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Jader Oliveira
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil.,Universidade de São Paulo (USP), Faculdade de Saúde Pública, São Paulo, SP, Brazil
| | - Kaio Cesar Chaboli Alevi
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil
| | - Joao Aristeu da Rosa
- Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquara, Sao Paulo, 01000, Brazil
| | - Plutarco Urbano
- Grupo de Investigaciones Biológicas de la Orinoquia, Universidad Internacional del Trópico Americano (Unitrópico), Yopal, Colombia
| | - Camilo Salazar
- Grupo de Genética Evolutiva y Filogeografía, Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMIBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
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