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Guillory WX, de Medeiros Magalhães F, Coelho FEA, Bonatelli IAS, Palma-Silva C, Moraes EM, Garda AA, Burbrink FT, Gehara M. Geoclimatic drivers of diversification in the largest arid and semi-arid environment of the Neotropics: Perspectives from phylogeography. Mol Ecol 2024; 33:e17431. [PMID: 38877815 DOI: 10.1111/mec.17431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/24/2024] [Accepted: 05/30/2024] [Indexed: 06/16/2024]
Abstract
The South American Dry Diagonal, also called the Diagonal of Open Formations, is a large region of seasonally dry vegetation extending from northeastern Brazil to northern Argentina, comprising the Caatinga, Cerrado, and Chaco subregions. A growing body of phylogeography literature has determined that a complex history of climatic changes coupled with more ancient geological events has produced a diverse and endemic-rich Dry Diagonal biota. However, the exact drivers are still under investigation, and their relative strengths and effects are controversial. Pleistocene climatic fluctuations structured lineages via vegetation shifts, refugium formation, and corridors between the Amazon and Atlantic forests. In some taxa, older geological events, such as the reconfiguration of the São Francisco River, uplift of the Central Brazilian Plateau, or the Miocene inundation of the Chaco by marine incursions, were more important. Here, we review the Dry Diagonal phylogeography literature, discussing each hypothesized driver of diversification and assessing degree of support. Few studies statistically test these hypotheses, with most support drawn from associating encountered phylogeographic patterns such as population structure with the timing of ancient geoclimatic events. Across statistical studies, most hypotheses are well supported, with the exception of the Pleistocene Arc Hypothesis. However, taxonomic and regional biases persist, such as a proportional overabundance of herpetofauna studies, and the under-representation of Chaco studies. Overall, both Pleistocene climate change and Neogene geological events shaped the evolution of the Dry Diagonal biota, though the precise effects are regionally and taxonomically varied. We encourage further use of model-based analyses to test evolutionary scenarios, as well as interdisciplinary collaborations to progress the field beyond its current focus on the traditional set of geoclimatic hypotheses.
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Affiliation(s)
- Wilson X Guillory
- Department of Earth and Environmental Sciences, Rutgers University Newark, Newark, New Jersey, USA
- Department of Biological Sciences, Rutgers University Newark, Newark, New Jersey, USA
| | | | | | - Isabel A S Bonatelli
- Departamento de Ecologia e Biologia Evolutiva, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
| | - Clarisse Palma-Silva
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, Brazil
| | - Evandro M Moraes
- Departamento de Biologia, Universidade Federal de São Carlos (UFSCar), Sorocaba, São Paulo, Brazil
| | - Adrian Antonio Garda
- Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Frank T Burbrink
- Department of Herpetology, The American Museum of Natural History, New York City, New York, USA
| | - Marcelo Gehara
- Department of Earth and Environmental Sciences, Rutgers University Newark, Newark, New Jersey, USA
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2
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Salgado-Roa FC, Pardo-Diaz C, Rueda-M N, Cisneros-Heredia DF, Lasso E, Salazar C. The Andes as a semi-permeable geographical barrier: Genetic connectivity between structured populations in a widespread spider. Mol Ecol 2024; 33:e17361. [PMID: 38634856 DOI: 10.1111/mec.17361] [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: 01/16/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Geographical barriers like mountain ranges impede genetic exchange among populations, promoting diversification. The effectiveness of these barriers in limiting gene flow varies between lineages due to each species' dispersal modes and capacities. Our understanding of how the Andes orogeny contributes to species diversification comes from well-studied vertebrates and a few arthropods and plants, neglecting organisms unable to fly or walk long distances. Some arachnids, such as Gasteracantha cancriformis, have been hypothesized to disperse long distances via ballooning (i.e. using their silk to interact with the wind). Yet, we do not know how the environment and geography shape its genetic diversity. Therefore, we tested whether the Andes contributed to the diversification of G. cancriformis acting as an absolute or semi-permeable barrier to genetic connectivity between populations of this spider at opposite sides of the mountain range. We sampled thousands of loci across the distribution of the species and implemented population genetics, phylogenetic, and landscape genetic analyses. We identified two genetically distinct groups structured by the Central Andes, and a third less structured group in the Northern Andes that shares ancestry with the previous two. This structure is largely explained by the altitude along the Andes, which decreases in some regions, possibly facilitating cross-Andean dispersal and gene flow. Our findings support that altitude in the Andes plays a major role in structuring populations in South America, but the strength of this barrier can be overcome by organisms with long-distance dispersal modes together with altitudinal depressions.
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Affiliation(s)
- Fabian C Salgado-Roa
- Department of Biology, Faculty of Natural Sciences, Universidad del Rosario, Bogotá, Colombia
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Carolina Pardo-Diaz
- Department of Biology, Faculty of Natural Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Nicol Rueda-M
- Department of Biology, Faculty of Natural Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Diego F Cisneros-Heredia
- Colegio de Ciencias Biológicas y Ambientales, Instituto de Biodiversidad Tropical IBIOTROP, Laboratorio de Zoología Terrestre, Museo de Zoología & Extensión USFQ Galápagos GAIAS, Galapagos Science Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Eloisa Lasso
- Department of Biological Sciences, Universidad de los Andes, Bogotá, Colombia
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Estación Científica Coiba AIP, Panama, Republic of Panama
| | - Camilo Salazar
- Department of Biology, Faculty of Natural Sciences, Universidad del Rosario, Bogotá, Colombia
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Bernegossi AM, Galindo DJ, Peres PHF, Vozdova M, Cernohorska H, Kubickova S, Kadlcikova D, Rubes J, Duarte JMB. Comparative karyotype analysis of the red brocket deer (M. americana sensu lato and M. rufa) complex: evidence of drastic chromosomal evolution and implications on speciation process. J Appl Genet 2024:10.1007/s13353-024-00861-4. [PMID: 38662189 DOI: 10.1007/s13353-024-00861-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/14/2024] [Accepted: 03/21/2024] [Indexed: 04/26/2024]
Abstract
Chromosomal rearrangements are often associated with playing a role in the speciation process. However, the underlying mechanism that favors the genetic isolation associated with chromosomal changes remains elusive. In this sense, the genus Mazama is recognized by its high level of karyotype diversity among species with similar morphology. A cryptic species complex has been identified within the genus, with the red brocket deer (Mazama americana and Mazama rufa) being the most impressive example. The chromosome variation was clustered in cytotypes with diploid numbers ranging from 42 to 53 and was correlated with geographical location. We conducted an analysis of chromosome evolution of the red brocket deer complex using comparative chromosome painting and Bacterial Artificial Chromosome (BAC) clones among different cytotypes. The aim was to deepen our understanding of the karyotypic relationships within the red brocket, thereby elucidating the significant chromosome variation among closely related species. This underscores the significance of chromosome changes as a key evolutionary process shaping their genomes. The results revealed the presence of three distinct cytogenetic lineages characterized by significant karyotypic divergence, suggesting the existence of efficient post-zygotic barriers. Tandem fusions constitute the main mechanism driving karyotype evolution, following a few centric fusions, inversion X-autosomal fusions. The BAC mapping has improved our comprehension of the karyotypic relationships within the red brocket deer complex, prompting questions regarding the role of these changes in the speciation process. We propose the red brocket as a model group to investigate how chromosomal changes contribute to isolation and explore the implications of these changes in taxonomy and conservation.
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Affiliation(s)
- Agda Maria Bernegossi
- Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, Sao Paulo, 14884-900, Brazil
| | - David Javier Galindo
- Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, Sao Paulo, 14884-900, Brazil.
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, National University of San Marcos, San Borja, 15021, Lima, Peru.
| | - Pedro Henrique Faria Peres
- Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, Sao Paulo, 14884-900, Brazil
| | - Miluse Vozdova
- Central European Institute of Technology-Veterinary Research Institute, 621 00, Brno, Czech Republic
| | - Halina Cernohorska
- Central European Institute of Technology-Veterinary Research Institute, 621 00, Brno, Czech Republic
| | - Svatava Kubickova
- Central European Institute of Technology-Veterinary Research Institute, 621 00, Brno, Czech Republic
| | - Dita Kadlcikova
- Central European Institute of Technology-Veterinary Research Institute, 621 00, Brno, Czech Republic
| | - Jiri Rubes
- Central European Institute of Technology-Veterinary Research Institute, 621 00, Brno, Czech Republic
| | - José Maurício Barbanti Duarte
- Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, Sao Paulo, 14884-900, Brazil.
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Sánchez KI, Recknagel H, Elmer KR, Avila LJ, Morando M. Tracing evolutionary trajectories in the presence of gene flow in South American temperate lizards (Squamata: Liolaemus kingii group). Evolution 2024; 78:716-733. [PMID: 38262697 DOI: 10.1093/evolut/qpae009] [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: 08/29/2023] [Revised: 12/20/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Evolutionary processes behind lineage divergence often involve multidimensional differentiation. However, in the context of recent divergences, the signals exhibited by each dimension may not converge. In such scenarios, incomplete lineage sorting, gene flow, and scarce phenotypic differentiation are pervasive. Here, we integrated genomic (RAD loci of 90 individuals), phenotypic (linear and geometric traits of 823 and 411 individuals, respectively), spatial, and climatic data to reconstruct the evolutionary history of a speciation continuum of liolaemid lizards (Liolaemus kingii group). Specifically, we (a) inferred the population structure of the group and contrasted it with the phenotypic variability; (b) assessed the role of postdivergence gene flow in shaping phylogeographic and phenotypic patterns; and (c) explored ecogeographic drivers of diversification across time and space. We inferred eight genomic clusters exhibiting leaky genetic borders coincident with geographic transitions. We also found evidence of postdivergence gene flow resulting in transgressive phenotypic evolution in one species. Predicted ancestral niches unveiled suitable areas in southern and eastern Patagonia during glacial and interglacial periods. Our study underscores integrating different data and model-based approaches to determine the underlying causes of diversification, a challenge faced in the study of recently diverged groups. We also highlight Liolaemus as a model system for phylogeographic and broader evolutionary studies.
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Affiliation(s)
- Kevin I Sánchez
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
| | - Hans Recknagel
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Kathryn R Elmer
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Luciano J Avila
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
| | - Mariana Morando
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, Chubut, Argentina
- Departamento de Biología y Ambiente, Universidad Nacional de la Patagonia San Juan Bosco, Sede Puerto Madryn, Puerto Madryn, Chubut, Argentina
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Pinotti JD, Martin ML, Chiappero MB, Andreo V, González-Ittig RE. Combining phylogeography and ecological niche modeling to infer the evolutionary history of the Cordoba vesper mouse (Calomys venustus). Integr Zool 2024. [PMID: 38287190 DOI: 10.1111/1749-4877.12805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
The evolutionary dynamics of the ecoregions of southern South America and the species that inhabit them have been poorly studied, and few biogeographic hypotheses have been proposed and tested. Quaternary climatic oscillations are among the most important processes that have led to the current distribution of genetic variation in different regions of the world. In this work, we studied the evolutionary history and distribution of the Córdoba vesper mouse (Calomys venustus), a characteristic rodent of the region of which little is known about its natural history. Since the population dynamics of this species are influenced by climatic factors, this rodent is a suitable model to study the effects of Quaternary climatic oscillations in central Argentina. The mitochondrial cytochrome b gene was sequenced to analyze the phylogeography of C. venustus, and ecological niche modeling tools were used to map its potential distributions. The results of these approaches were combined to provide additional spatially explicit information about this species' past. Our results suggest that the Espinal was the area of origin of this species, which expanded demographically and spatially during the last glacial period. A close relationship was found between the Espinal and the Mountain Chaco. These results are consistent with previous studies and emphasize the role of the Espinal in the biogeographic history of southern South America as an area of origin of several species.
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Affiliation(s)
- Juan Diego Pinotti
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET and Universidad Nacional de Córdoba, Argentina
- Instituto de Altos Estudios Espaciales "Mario Gulich" (UNC-CONAE), Falda del Cañete, Córdoba, Argentina
| | - María Laura Martin
- Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina
| | - Marina Beatriz Chiappero
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET and Universidad Nacional de Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, UNC, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Verónica Andreo
- Instituto de Altos Estudios Espaciales "Mario Gulich" (UNC-CONAE), Falda del Cañete, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Raúl Enrique González-Ittig
- Instituto de Diversidad y Ecología Animal (IDEA), CONICET and Universidad Nacional de Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, UNC, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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6
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Silva GC, Solís Neffa VG, Zuquim G, Balslev H. Biogeography and environmental preferences of Butia yatay (Mart.) Becc. Ecol Evol 2023; 13:e10749. [PMID: 38034334 PMCID: PMC10682568 DOI: 10.1002/ece3.10749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 10/26/2023] [Accepted: 11/07/2023] [Indexed: 12/02/2023] Open
Abstract
During the Quaternary, Chaco Phytogeographic Domain (Chaco) flora in subtropical South America experienced temperature and humidity fluctuations, primarily driven by wind dynamics, leading to significant shifts in species distribution. The palm Butia yatay is endemic to the Chaco and thrives in areas characterized by a warm-rainy climate and mostly restricted to sandy soils. To investigate the current geographic distribution of suitable habitat for B. yatay while assessing the significance of soil variables, we employed two distinct algorithms in species distribution modeling (SDM). We also determined whether the distribution of B. yatay has changed since the Pleistocene and whether these changes align with previously proposed Pleistocene refugia. In the present SDMs, we considered two separate sets of predictors, one set with bioclimatic variables only and the other set with bioclimatic topographic and soil variables. Additionally, we reconstructed the historical geographic distribution of suitable habitats using bioclimatic data. Our results suggested that the primary determinants of B. yatay's current distribution include precipitation and temperature of the driest month and soil cation exchange capacity. Incorporating soil variables affected the estimated size and range of suitable areas. Projections into the past indicated similar suitable habitat distributions during interglacial periods compared with the present. During the Last Glacial Maximum, climatically suitable habitat may have shifted northward, partially overlapping with previously suggested Pleistocene refugia located between the Paraná and Uruguay Rivers. These findings indicate the main factors driving the distribution and ecology of B. yatay and enhance understanding of subtropical flora shifts during the Quaternary. The approach also may prove valuable for other studies within the Chaco.
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Affiliation(s)
- G. Carolina Silva
- Laboratorio de Citogenética y Evolución VegetalInstituto de Botánica del Nordeste (UNNE‐CONICET)CorrientesArgentina
| | - Viviana Griselda Solís Neffa
- Laboratorio de Citogenética y Evolución VegetalInstituto de Botánica del Nordeste (UNNE‐CONICET)CorrientesArgentina
- Facultad de Ciencias Exactas y Naturales y AgrimensuraUniversidad Nacional del NordesteCorrientesArgentina
| | - Gabriela Zuquim
- Department of BiologyUniversity of TurkuTurkuFinland
- Department of Biology‐Ecoinformatics and BiodiversityUniversity of AarhusAarhus CDenmark
| | - Henrik Balslev
- Department of Biology‐Ecoinformatics and BiodiversityUniversity of AarhusAarhus CDenmark
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Fonseca EM, Pelletier TA, Decker SK, Parsons DJ, Carstens BC. Pleistocene glaciations caused the latitudinal gradient of within-species genetic diversity. Evol Lett 2023; 7:331-338. [PMID: 37829497 PMCID: PMC10565891 DOI: 10.1093/evlett/qrad030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/26/2023] [Accepted: 07/10/2023] [Indexed: 10/14/2023] Open
Abstract
Intraspecific genetic diversity is a key aspect of biodiversity. Quaternary climatic change and glaciation influenced intraspecific genetic diversity by promoting range shifts and population size change. However, the extent to which glaciation affected genetic diversity on a global scale is not well established. Here we quantify nucleotide diversity, a common metric of intraspecific genetic diversity, in more than 38,000 plant and animal species using georeferenced DNA sequences from millions of samples. Results demonstrate that tropical species contain significantly more intraspecific genetic diversity than nontropical species. To explore potential evolutionary processes that may have contributed to this pattern, we calculated summary statistics that measure population demographic change and detected significant correlations between these statistics and latitude. We find that nontropical species are more likely to deviate from neutral expectations, indicating that they have historically experienced dramatic fluctuations in population size likely associated with Pleistocene glacial cycles. By analyzing the most comprehensive data set to date, our results imply that Quaternary climate perturbations may be more important as a process driving the latitudinal gradient in species richness than previously appreciated.
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Affiliation(s)
- Emanuel M Fonseca
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, United States
| | - Tara A Pelletier
- Department of Biology, Radford University, Radford, VA, United States
| | - Sydney K Decker
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, United States
| | - Danielle J Parsons
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, United States
| | - Bryan C Carstens
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, United States
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Tran DV, Vu TT, Fukutani K, Nishikawa K. Demographic and ecological niche dynamics of the Vietnam warty newt, Paramesotriton deloustali: Historical climate influences. PLoS One 2023; 18:e0290044. [PMID: 37594998 PMCID: PMC10437943 DOI: 10.1371/journal.pone.0290044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/01/2023] [Indexed: 08/20/2023] Open
Abstract
Quaternary climatic cycles strongly affected the genetic diversification and ranges of organisms, shaping current genetic structures and distribution patterns. Urodeles provide ideal examples for exploring these dynamics over time and across space. In this study, we integrated a phylogeographic approach and ensemble species distribution modeling (eSDM) to infer the historical demography and distribution patterns of the Vietnam warty newt, Paramesotriton deloustali. Mitochondrial data revealed two groups, West and East, which diverged approximately 1.92 million years ago (Mya). Diversification was likely driven by change in the climate during early stages of the Pleistocene, with increasing monsoon and drought intensities. Biogeographic analysis indicated that the newt's current distribution formed as a result of vicariance events. In addition, the two groups occupy distinct ecological niches. Demographic reconstruction showed signs of expansion in the effective population sizes of the two major groups beginning around 0.11 and 0.15 Mya, respectively. However, eSDM showed fluctuating predicted distributions during the last interglacial, last glacial maximum, mid-Holocene, and present. Mountain systems in northern Vietnam are likely to have served as climatic refuges and to have played a crucial role in safeguarding species from the effects of climate change.
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Affiliation(s)
- Dung Van Tran
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
- Wildlife Department, Vietnam National University of Forestry, Ha Noi, Vietnam
| | - Thinh Tien Vu
- Wildlife Department, Vietnam National University of Forestry, Ha Noi, Vietnam
| | - Kazumi Fukutani
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
| | - Kanto Nishikawa
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
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Harigai W, Saito A, Zemmoto C, Karasawa S, Yokoi T, Nagano AJ, Suzuki H, Yamamoto M. History of the terrestrial isopod genus Ligidium in Japan based on phylogeographic analysis. BMC Ecol Evol 2023; 23:38. [PMID: 37550609 PMCID: PMC10405464 DOI: 10.1186/s12862-023-02144-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 07/26/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Phylogeographical approaches explain the genetic diversity of local organisms in the context of their geological and geographic environments. Thus, genetic diversity can be a proxy for geological history. Here we propose a genus of woodland isopod, Ligidium, as a marker of geological history in relation to orogeny and the Quaternary glacial cycle. RESULTS Mitochondrial analysis of 721 individuals from 97 sites across Japan revealed phylogenetic divergence between the northeastern and southwestern Japan arcs. It also showed repeated population expansions in northeastern Japan in response to Quaternary glacial and interglacial cycles. Genome-wide analysis of 83 selected individuals revealed multiple genetic nuclear clusters. The genomic groupings were consistent with the local geographic distribution, indicating that the Ligidium phylogeny reflects its regional history. CONCLUSION Ligidium DNA sequence analysis can provide insight into the geological, geographical, and paleoenvironmental history of the studied region.
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Affiliation(s)
- Wakana Harigai
- Graduate School of Environmental Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan.
- Present address: Department of Child Development and Molecular Brain Science, United Graduate School of Child Development, Osaka University, Suita, 565-0871, Japan.
| | - Aya Saito
- Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
| | - Chika Zemmoto
- Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
| | - Shigenori Karasawa
- Faculty of Agriculture, Tottori University, 4-101, Koyama-Cho Minami, Tottori, 680-8553, Japan
| | - Touta Yokoi
- Faculty of Agriculture, Tottori University, 4-101, Koyama-Cho Minami, Tottori, 680-8553, Japan
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, Otsu, Shiga, 520-2194, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0017, Japan
| | - Hitoshi Suzuki
- Graduate School of Environmental Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
- Faculty of Environmental Earth Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
| | - Masanobu Yamamoto
- Graduate School of Environmental Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
- Faculty of Environmental Earth Science, Hokkaido University, Kita-Ku, Sapporo, 060-0810, Japan
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10
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Sánchez KI, Diaz Huesa EG, Breitman MF, Avila LJ, Sites JW, Morando M. Complex Patterns of Diversification in the Gray Zone of Speciation: Model-Based Approaches Applied to Patagonian Liolaemid Lizards (Squamata: Liolaemus kingii clade). Syst Biol 2023; 72:739-752. [PMID: 37097104 DOI: 10.1093/sysbio/syad019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/28/2023] [Accepted: 04/11/2023] [Indexed: 04/26/2023] Open
Abstract
In this study we detangled the evolutionary history of the Patagonian lizard clade Liolaemus kingii, coupling dense geographic sampling and novel computational analytical approaches. We analyzed nuclear and mitochondrial data (restriction site-associated DNA sequencing and cytochrome b) to hypothesize and evaluate species limits, phylogenetic relationships, and demographic histories. We complemented these analyses with posterior predictive simulations to assess the fit of the genomic data to the multispecies coalescent model. We also employed a novel approach to time-calibrate a phylogenetic network. Our results show several instances of mito-nuclear discordance and consistent support for a reticulated history, supporting the view that the complex evolutionary history of the kingii clade is characterized by extensive gene flow and rapid diversification events. We discuss our findings in the contexts of the "gray zone" of speciation, phylogeographic patterns in the Patagonian region, and taxonomic outcomes. [Model adequacy; multispecies coalescent; multispecies network coalescent; phylogenomics; species delimitation.].
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Affiliation(s)
- Kevin I Sánchez
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, U9120ACD, Argentina
| | - Emilce G Diaz Huesa
- Instituto de Diversidad y Evolución Austral, Consejo Nacional de Investigaciones Científicas y Técnicas (IDEAus-CONICET), Puerto Madryn, U9120ACD, Argentina
| | - María F Breitman
- Department of Biology and Environmental Science, Auburn University at Montgomery, Montgomery, 36117, USA
| | - Luciano J Avila
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, U9120ACD, Argentina
| | - Jack W Sites
- Department of Biology, Austin Peay State University, Clarksville, 37044, USA
| | - Mariana Morando
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Puerto Madryn, U9120ACD, Argentina
- Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), Puerto Madryn, U9120ACD, Argentina
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11
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Atencio GWG, Zanini R, Deprá M, Romanowski HP. Preliminary population studies of the grassland swallowtail butterfly Euryades corethrus (Lepidoptera, Papilionidae). AN ACAD BRAS CIENC 2023; 95:e20210503. [PMID: 37341269 DOI: 10.1590/0001-3765202320210503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/10/2021] [Indexed: 06/22/2023] Open
Abstract
Euryades corethrus is a Troidini butterfly (Papilionidae, Papilioninae), endemic to grasslands in southern Brazil, Uruguay, Argentina and Paraguay. Formerly abundant, nowadays it is in the Red list of endangered species for those areas. During its larval stage, it feeds on Aristolochia spp, commonly found in southern grasslands. These native grassland areas are diminishing, being converted to crops and pastures, causing habitat loss for Aristolochia and E. corethrus. This study aimed to assess the genetic diversity, population structure and demographic history of E. corethrus. We sampled eight populations from Rio Grande do Sul, Brazil and based on Cytochrome Oxidase subunit I (COI) molecular marker, our results suggest a low genetic variability between populations, presence of gene flow and, consequently, lack of population structure. A single maternally inherited-genetic marker is insufficient for population-level decisions, but barcoding is a useful tool during early stages of population investigation, bringing out genomic diversity patterns within the target species. Those populations likely faced a bottleneck followed by a rapid expansion during the last glaciation and subsequent stabilization in effective population size. Habitat loss is a threat, which might cause isolation, loss of genetic variability and, ultimately, extinction of E. corethrus if no habitat conservation policy is adopted.
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Affiliation(s)
- Guilherme Wagner G Atencio
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43433, Sala 214, Agronomia, 91501-970 Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de Zoologia, Laboratório de Ecologia de Insetos, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, Sala 218, Agronomia, 91501-970 Porto Alegre, RS, Brazil
- Universidade de Lisboa, Faculdade de Ciências, Centro de Ecologia, Evolução e Alterações Ambientais, Edifício C2, 5.º piso, Sala 2.5.46, Código Postal 1749-016, Campo Grande, Lisboa, Portugal
| | - Rebeca Zanini
- Universidade Federal do Rio Grande do Sul, Departamento de Genética, Laboratório de Drosophila, Av. Bento Gonçalves, 9500, Prédio 43323, Sala 210, Agronomia, 90650-001 Porto Alegre, RS, Brazil
- Universidade Nova de Lisboa, Faculdade de Ciências Médicas, Laboratório de Biomedicina Integrativa, Rua do Instituto Bacteriológico 5, Código Postal 1169-056, Lisboa, Portugal
| | - Maríndia Deprá
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43433, Sala 214, Agronomia, 91501-970 Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de Genética, Laboratório de Drosophila, Av. Bento Gonçalves, 9500, Prédio 43323, Sala 210, Agronomia, 90650-001 Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43312 M, Caixa Postal 15053, Agronomia, 90650-001 Porto Alegre, RS, Brazil
| | - Helena P Romanowski
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43433, Sala 214, Agronomia, 91501-970 Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de Zoologia, Laboratório de Ecologia de Insetos, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, Sala 218, Agronomia, 91501-970 Porto Alegre, RS, Brazil
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12
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Carvalho PS, Santana DJ, Zaher H, Myers EA. Effects of Environmental Variation in Structuring Population Genetic Variation in the False-Water Cobras (Xenodontinae: Hydrodynastes). Evol Biol 2023. [DOI: 10.1007/s11692-023-09601-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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13
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Dantas-Queiroz MV, Hurbath F, de Russo Godoy FM, Lanna FM, Versieux LM, Palma-Silva C. Comparative phylogeography reveals the demographic patterns of neotropical ancient mountain species. Mol Ecol 2023. [PMID: 36934376 DOI: 10.1111/mec.16929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 03/01/2023] [Accepted: 03/07/2023] [Indexed: 03/20/2023]
Abstract
Mountains are renowned for their bountiful biodiversity. Explanations on the origin of such abundant life are usually regarded to their orogenic history. However, ancient mountain systems with geological stability also exhibit astounding levels of number of species and endemism, as illustrated by the Brazilian Quartzitic Mountains (BQM) in Eastern South America. Thus, cycles of climatic changes over the last couple million years are usually assumed to play an important role in the origin of mountainous biota. These climatic oscillations potentially isolated and reconnected adjacent populations, a phenomenon known as flickering connectivity, accelerating speciation events due to range fragmentation, dispersion, secondary contact, and hybridization. To evaluate the role of the climatic fluctuations on the diversification of the BQM biota, we estimated the ancient demography of distinct endemic species of animals and plants using hierarchical approximate Bayesian computation analysis and Ecological Niche Modelling. Additionally, we evaluated if climatic oscillations have driven a genetic spatial congruence in the genetic structure of codistributed species from the Espinhaço Range, one of the main BQM areas. Our results show that the majority of plant lineages underwent a synchronous expansion over the Last Glacial Maximum (LGM, c. 21 thousand years ago), although we could not obtain a clear demographic pattern for the animal lineages. We also obtained a signal of a congruent phylogeographic break between lineages endemic to the Espinhaço Range, suggesting how ancient climatic oscillations might have driven the evolutionary history of the Espinhaço's biota.
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Affiliation(s)
- Marcos Vinicius Dantas-Queiroz
- Programa de Pós-Graduação em Biologia Vegetal, Universidade Estadual Paulista (UNESP), São Paulo, Brazil
- Department of Evolutionary Plant Biology, Institute of Botany of the Czech Academy of Sciences, Zámek 1, Průhonice, Czech Republic
| | - Fernanda Hurbath
- Universidade do Estado de Minas Gerais - Unidade Passos, Av. Juca Stockler, 1130, bairro Belo Horizonte, Passos, Brazil
| | - Fernanda Maria de Russo Godoy
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Flávia Mol Lanna
- Department of Evolution, Ecology and Organismal Biology. Museum of Biological Diversity, The Ohio State University, Columbus, Ohio, USA
| | - Leonardo M Versieux
- Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Clarisse Palma-Silva
- Programa de Pós-Graduação em Biologia Vegetal, Universidade Estadual Paulista (UNESP), São Paulo, Brazil
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
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14
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Mendes Junior AAV, Filgueira CPB, Miranda LDFC, de Almeida AB, Cantanhêde LM, Fagundes A, Pereira SA, Menezes RC, Cupolillo E. First report of Leishmania (Mundinia) martiniquensis in South American territory and confirmation of Leishbunyavirus infecting this parasite in a mare. Mem Inst Oswaldo Cruz 2023; 118:e220220. [PMID: 37194810 DOI: 10.1590/0074-02760220220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 04/03/2023] [Indexed: 05/18/2023] Open
Abstract
BACKGROUND Epidemiological data related to leishmaniases or Leishmania infection in horses are scarce. However, studies carried out in different regions in the world showed equids parasitised by Leishmania braziliensis, L. infantum and L. martiniquensis. OBJECTIVES Identify the Leishmania species causing cutaneous leishmaniasis in a mare, living in Rio de Janeiro State (Brazil), and search the presence of Leishmania viruses in the isolated parasite. METHODS Isoenzymes and polymerase chain reaction (PCR) targeting ITSrDNA region followed by sequencing were conducted for typing the isolated parasite. A search for Leishmania virus infection was also performed. FINDINGS The mare presented skin nodules and ulcers in the left pinna caused by Leishmania spp. that was detected by culture and PCR. The parasite was identified as Leishmania (Mundinia) martiniquensis, infected by Leishbunyavirus (LBV), representing the first description of this species in South America. The animal travelled to different Brazilian regions, but not to outside the country. MAIN CONCLUSIONS The worldwide distribution of L. martiniquensis and its infection by LBV were confirmed in this study, indicating the autochthonous transmission cycle in Brazil. The clinical profile of the disease in the mare, showing fast spontaneous healing of cutaneous lesions, may indicate that skin lesions related to L. martiniquensis infection in horses might be underdiagnosed.
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Affiliation(s)
- Artur Augusto Velho Mendes Junior
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Dermatozoonoses em Animais Domésticos, Rio de Janeiro, RJ, Brasil
| | | | - Luciana de Freitas Campos Miranda
- Fundação Oswaldo Cruz-Fiocruz, Laboratório de Pesquisa Clínica e Vigilância em Leishmanioses, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, RJ, Brasil
| | - Adilson Benedito de Almeida
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Dermatozoonoses em Animais Domésticos, Rio de Janeiro, RJ, Brasil
| | - Lilian Motta Cantanhêde
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Pesquisa em Leishmanioses, Rio de Janeiro, RJ, Brasil
| | - Aline Fagundes
- Fundação Oswaldo Cruz-Fiocruz, Laboratório de Pesquisa Clínica e Vigilância em Leishmanioses, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, RJ, Brasil
| | - Sandro Antônio Pereira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Dermatozoonoses em Animais Domésticos, Rio de Janeiro, RJ, Brasil
| | - Rodrigo Caldas Menezes
- Fundação Oswaldo Cruz-Fiocruz, Instituto Nacional de Infectologia Evandro Chagas, Laboratório de Pesquisa Clínica em Dermatozoonoses em Animais Domésticos, Rio de Janeiro, RJ, Brasil
| | - Elisa Cupolillo
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Pesquisa em Leishmanioses, Rio de Janeiro, RJ, Brasil
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15
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Muñoz-Valencia V, Montoya-Lerma J, Seppä P, Diaz F. Landscape genetics across the Andes mountains: Environmental variation drives genetic divergence in the leaf-cutting ant Atta cephalotes. Mol Ecol 2023; 32:95-109. [PMID: 36261873 DOI: 10.1111/mec.16742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 10/07/2022] [Accepted: 10/17/2022] [Indexed: 12/29/2022]
Abstract
Distinguishing among the mechanisms underlying the spatial distribution of genetic variation resulting from the environmental or physical barriers from those arising due to simple geographic distance is challenging in complex landscapes. The Andean uplift represents one of the most heterogeneous habitats where multiple mechanisms may interact, confounding their relative roles. We explore this broad question in the leaf-cutting ant Atta cephalotes, a species that is distributed across the Andes mountains, using nuclear microsatellite markers and mtCOI gene sequences. We investigate spatial genetic divergence across the western range of the northern Andes in Colombia by testing the relative role of alternative scenarios of population divergence, including isolation by geographic distance (IBD), climatic conditions (IBE), and the physical barriers presented by the Andes mountains (IBB). Our results reveal substantial genetic differentiation among A. cephalotes populations for both types of markers, but only nuclear divergence followed a hierarchical pattern with multiple models of genetic divergence imposed by the western range. Model selection showed that the IBD, IBE (temperature and precipitation), and IBB (Andes mountains) models, often proposed as individual drivers of genetic divergence, interact, and explain up to 33% of the genetic divergence in A. cephalotes. The IBE model remained significant after accounting for IBD, suggesting that environmental factors play a more prominent role than IBB. These factors, in combination with the idiosyncratic dispersal patterns of ants, appear to determine the hierarchical patterns of gene flow. This study enriches our understanding of the forces shaping population divergence in complex habitat landscapes.
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Affiliation(s)
- Vanessa Muñoz-Valencia
- Group of Agroecosystem Ecology and Natural Habitats, Department of Biology, Faculty of Natural Science, Universidad del Valle, Cali, Colombia
| | - James Montoya-Lerma
- Group of Agroecosystem Ecology and Natural Habitats, Department of Biology, Faculty of Natural Science, Universidad del Valle, Cali, Colombia
| | - Perttu Seppä
- Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Fernando Diaz
- Biology Department, Colgate University, New York, USA
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16
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Marques-Souza S, Pellegrino KCM, Brunes TO, Rojas-Runjaic FJM, Rodrigues MT. A molecular perspective on the systematics and distribution of Loxopholis lizards in South and Central America, with advances on the biogeography of the tribe Ecpleopodini (Gymnophthalmidae: Squamata). SYST BIODIVERS 2022. [DOI: 10.1080/14772000.2022.2119295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sergio Marques-Souza
- Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, 05508-900, Brazil
| | - Katia Cristina M. Pellegrino
- Departamento de Ecologia e Biologia Evolutiva, Laboratório de Genética Evolutiva, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Tuliana O. Brunes
- Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, 05508-900, Brazil
| | - Fernando J. M. Rojas-Runjaic
- Laboratório de Herpetologia, Coordenação de Zoologia, Programa de Capacitação Institucional, Museu Paraense Emílio Goeldi (MPEG), Belém, Pará, Brazil
- Museo de Historia Natural La Salle, Fundación La Salle de Ciencias Naturales, Caracas, Distrito Capital, Venezuela
| | - Miguel Trefaut Rodrigues
- Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, 05508-900, Brazil
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17
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Silva AC, Souza AF. Spatial structure of the Caatinga woody flora: abundance patterns have environmental, Pleistocene, and indigenous drivers. AN ACAD BRAS CIENC 2022; 94:e20211019. [PMID: 36477232 DOI: 10.1590/0001-3765202220211019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 02/25/2022] [Indexed: 11/29/2022] Open
Abstract
Despite growing knowledge on the distribution and functioning of dryland vegetation types, their internal biodiversity structure (i.e., subregions) is much less studied. In the delineation of subregions, the use of species occurrence or abundance data may reveal different aspects of metacommunity structure. We revisit the issue of the bioregionalization of the woody flora of the Caatinga, the largest block of the dry forest and woodland biome in Latin America, using abundance data. We also evaluated the drivers of the spatial distribution of plant subregions: historical, current environmental and human effects. Using a K-means partition on interpolated NMDS axes, we identified 10 abundance subregions. Aridity, topography and soil, biome stability since the Pleistocene, and historical indigenous effects were retained by a Multinomial Logistic regression model, and their combined fractions explained most of the abundance variability in subregions. The subregions we present may support spatialized conservation and management decisions in the lack of detailed local data. The present results confirm the Caatinga woody flora broad composition patterns uncovered using presence-absence data in previous studies. Additionally, we found larger subregions than those identified with presence and absence data, suggesting the existence of oligarchies of dominant species in distinct parts of the Caatinga biome.
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Affiliation(s)
- Augusto C Silva
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Ecologia, Departamento de Ecologia, CB, Campus Universitário, Lagoa Nova, Caixa Postal 1524, 59078-900 Natal, RN, Brazil
| | - Alexandre F Souza
- Universidade Federal do Rio Grande do Norte, Departamento de Ecologia, CB, Campus Universitário, Lagoa Nova, Caixa Postal 1524, 59078-900 Natal, RN, Brazil
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18
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The phylogeography of some soil-feeding termites shaped by the Andes. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00594-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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dos Santos MV, Prudente ALC, Rodrigues MT, Sturaro MJ. The Role of Vicariance and Paleoclimatic Shifts in the Diversification of Uranoscodon superciliosus (Squamata, Tropiduridae) of the Amazonian Floodplains. Evol Biol 2022. [DOI: 10.1007/s11692-022-09583-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Sepúlveda‐Espinoza F, Bertin‐Benavides A, Hasbún R, Toro‐Núñez Ó, Varas‐Myrik A, Alarcón D, Guillemin M. The impact of Pleistocene glaciations and environmental gradients on the genetic structure of
Embothrium coccineum. Ecol Evol 2022; 12:e9474. [DOI: 10.1002/ece3.9474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/02/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
- Francisco Sepúlveda‐Espinoza
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
- Facultad de Ciencias, Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
| | - Ariana Bertin‐Benavides
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
- ONG Conciencia Sur Concepción Chile
- Laboratorio de Genómica Forestal, Centro de Biotecnología Universidad de Concepción Concepción Chile
| | - Rodrigo Hasbún
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
| | - Óscar Toro‐Núñez
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile
| | - Antonio Varas‐Myrik
- Laboratorio de Epigenética Vegetal, Departamento de Silvicultura, Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
| | - Diego Alarcón
- Departamento de Ciencias Ecológicas, Instituto de Ecología y Biodiversidad Universidad de Chile Ñuñoa Chile
| | - Marie‐Laure Guillemin
- Núcleo Milenio MASH, Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
- IRL 3614 Evolutionary Biology and Ecology of Algae, CNRS Sorbonne Université, Pontificia Universidad Católica de Chile, Universidad Austral de Chile Roscoff France
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL) Valdivia Chile
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Martins NT, Macagnan LB, Cassano V, Gurgel CFD. Brazilian marine phylogeography: A literature synthesis and analysis of barriers. Mol Ecol 2022; 31:5423-5439. [PMID: 36073087 DOI: 10.1111/mec.16684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 08/15/2022] [Accepted: 08/30/2022] [Indexed: 12/24/2022]
Abstract
In the last 30 years a plethora of phylogeography studies have been published targeting Brazilian marine species. To date, several historical and extant physical and ecological processes have been identified as drivers of allopatric, sympatric and parapatric population genetic differentiation detected along the Brazilian coast. Examples of extant physical barriers include the split of the South Equatorial Current into the Brazil and North Brazil boundary currents, the mouth of major rivers (e.g., Amazon, São Francisco and Doce rivers) and coastal upwellings. Examples of historical barriers include the Vitória-Trindade seamount chain promoting genetic differentiation during periods of glacial maxima and lower sea levels. Examples of ecological speciation include adaptations to different substrata, resource use and reproductive biology. We used published data to build data sets and generalized additive models to identify patterns of spatial phylogeographical concordance across multiple taxa and markers. Our results identify Cape São Roque as the most dominant extant barrier to gene flow along the Brazilian coast, followed by the Vitória-Trindade seamount chain and Cape Santa Marta. Cape Santa Marta is the northern winter limit of the Rio da Plata plume and is intermittently influenced by the Malvinas Current. This study provides a novel explicit quantitative approach to comparative phylogeography that recognizes four Brazilian phylogeographical regions delimited by processes associated with barriers to gene flow.
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Affiliation(s)
- Nuno T Martins
- Departamento de Botânica, Universidade de São Paulo, Instituto de Biociências, São Paulo, São Paulo, Brazil
| | - Leonardo B Macagnan
- NUPEM - Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Valéria Cassano
- Departamento de Botânica, Universidade de São Paulo, Instituto de Biociências, São Paulo, São Paulo, Brazil
| | - Carlos Frederico D Gurgel
- NUPEM - Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
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22
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González M, Kacevas N, Nori J, Piacentini LN, Bidegaray-Batista L. Not the same: phylogenetic relationships and ecological niche comparisons between two different forms of Aglaoctenus lagotis from Argentina and Uruguay. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00586-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Porto CR, Fazolato CP, Marques R, Batalha-Filho H, Napoli MF, Garda AA, de Carvalho MLS, de Campos Fernandes FM. Unravelling the cryptic diversity and evolution of the dwarf swamp frog Pseudopaludicola mystacalis (Anura, Leptodactylidae) in open habitats of South America. AMPHIBIA-REPTILIA 2022. [DOI: 10.1163/15685381-bja10099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Many studies on the diversity of the South American biota support the role of ecological and geological events as main drivers of species diversification. For many groups, geomorphological events are the key drivers of diversification, while the influence of Pleistocene climate oscillations is prominent for others. To precisely indicate which events were key for the development of the astonishing biodiversity in South America, studies on widely distributed species are paramount. One such species, the dwarf swamp frog Pseudopaludicola mystacalis (Leptodactylidae, Leiuperinae), is widely distributed in open habitats of South America and we herein investigate population differentiation and diversification in this species across its geographic range. We sequenced a 1374 bp mtDNA fragment from 64 specimens across 25 localities. We used population assignment and species delimitation methods to assess genetic structure and lineage limits across the species distribution. We estimated, for each lineage, intraspecific diversity, divergence times, and demographic histories. Our results recovered ten lineages with up to 5% of genetic divergence among them. Diversification occurred mainly during the Tertiary, suggesting that Miocene-Pliocene topographic events had a major influence on the diversification of P. mystacalis. Pleistocene climatic oscillations also played a role on evolutionary history of P. mystacalis, causing demographic changes in one lineage.
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Affiliation(s)
- Clara Ribeiro Porto
- Universidade Federal da Bahia, Programa de Pós-Graduação em Genética e Biodiversidade, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
| | - Cecil Pergentino Fazolato
- Universidade Federal da Bahia, Programa de Pós-Graduação em Biodiversidade e Evolução, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
| | - Ricardo Marques
- Universidade do Estado de Mato Grosso, 78690-000, Nova Xavantina, Mato Grosso, Brazil
| | - Henrique Batalha-Filho
- Universidade Federal da Bahia, Programa de Pós-Graduação em Biodiversidade e Evolução, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
| | - Marcelo Felgueiras Napoli
- Universidade Federal da Bahia, Programa de Pós-Graduação em Biodiversidade e Evolução, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
| | - Adrian Antonio Garda
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Botânica e Zoologia, Avenida Senador Salgado Filho, S/N, Lagoa Nova, 59078-900, Natal, RN, Brazil
| | - Maria Luiza Silveira de Carvalho
- Universidade Federal da Bahia, Programa de Pós-Graduação em Genética e Biodiversidade, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
- Universidade Federal da Bahia, Programa de Pós-Graduação em Biodiversidade e Evolução, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
| | - Flora Maria de Campos Fernandes
- Universidade Federal da Bahia, Programa de Pós-Graduação em Genética e Biodiversidade, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
- Universidade Federal da Bahia, Programa de Pós-Graduação em Biodiversidade e Evolução, Instituto de Biologia, Rua Barão de Jeremoabo, s/n, 40170-115, Ondina, Salvador, Bahia, Brazil
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Rodriguez-Muñoz E, Montes C, Rojas-Runjaic FJM, Crawford AJ. Synthesis of geological data and comparative phylogeography of lowland tetrapods suggests recent dispersal through lowland portals crossing the Eastern Andean Cordillera. PeerJ 2022; 10:e13186. [PMID: 35855906 PMCID: PMC9288170 DOI: 10.7717/peerj.13186] [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: 12/09/2021] [Accepted: 03/08/2022] [Indexed: 01/12/2023] Open
Abstract
Vicariance is the simplest explanation for divergence between sister lineages separated by a potential barrier, and the northern Andes would seem to provide an ideal example of a vicariant driver of divergence. We evaluated the potential role of the uplift of the Eastern Cordillera (EC) of the Colombian Andes and the Mérida Andes (MA) of Venezuela as drivers of vicariance between lowland populations co-distributed on both flanks. We synthesized published geological data and provided a new reconstruction showing that the EC-MA grew from north to south, reaching significant heights and separating drainages and changing sediment composition by 38-33 million years ago (Ma). A few lowland passes across the EC-MA may have reached their current heights (~1,900 m a.s.l.) at 3-5 Ma. We created a comparative phylogeographic data set for 37 lineages of lowland tetrapods. Based on molecular phylogenetic analyses, most divergences between sister populations or species across the EC-MA occurred during Pliocene and the Quaternary and a few during the latest Miocene, and coalescent simulations rejected synchronous divergence for most groups. Divergence times were on average slightly but significantly more recent in homeotherms relative to poikilotherms. Because divergence ages are mostly too recent relative to the geological history and too asynchronous relative to each other, divergence across the northern Andes may be better explained by organism-environment interactions concomitant with climate oscillations during the Pleistocene, and/or dispersal across portals through the Andes.
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Affiliation(s)
| | - Camilo Montes
- Department of Physics and Geosciences, Universidad del Norte, Barranquilla, Atlantico, Colombia
| | - Fernando J. M. Rojas-Runjaic
- Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Caracas, Venezuela,Laboratório de Herpetologia, Coordenação de Zoologia, Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
| | - Andrew J. Crawford
- Department of Biological Sciences, Universidad de Los Andes, Bogotá, DC, Colombia
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Mittan CS, Zamudio KR, Thomé MTC, Camurugi F, Colli GR, Garda AA, Haddad CFB, Prado CPA. Temporal and spatial diversification along the Amazonia-Cerrado transition in Neotropical treefrogs of the Boana albopunctata species group. Mol Phylogenet Evol 2022; 175:107579. [PMID: 35835425 DOI: 10.1016/j.ympev.2022.107579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 10/17/2022]
Abstract
Despite extensive research on biodiversity in Neotropical forests, biodiversity in seasonally dry, open biomes in South America has been underestimated until recently. We leverage a widespread group, Boana albopunctata, to uncover cryptic lineages and investigate the timing of diversification in Neotropical anurans with a focus on dry diagonal biomes (Cerrado, Caatinga and Chaco) and the ecotone between Amazonia and the Cerrado. We inferred a multilocus phylogeny of the B. albopunctata species group that includes 15 of 18 described species, recovered two cryptic species, and reconstructed the timing of diversification among species distributed across multiple South American biomes. One new potential species (B. aff. steinbachi), sampled in the Amazonian state of Acre, clustered within the B. calcara-fasciata species complex and is close to B. steinbachi. A second putative new species (B. aff. multifasciata), sampled in the Amazonia-Cerrado ecotone, is closely related to B. multifasciata. Lastly, we place a recently identified Cerrado lineage (B. aff. albopuncata) into the B. albopunctata species group phylogeny for the first time. Our ancestral range reconstruction showed that species in the B. albopuctata group likely dispersed from Amazonia-Cerrado into the dry-diagonal and Atlantic Forest. Intraspecies demography showed, for both B. raniceps and B. albopunctata, signs of rapid expansion across the dry diagonal. Similarly, for one clade of B. multifasciata, our analyses support an invasion of the Cerrado from Amazonia, followed by a rapid expansion across the open diagonal biomes. Thus, our study recovers several recent divergences along the Amazonia-Cerrado ecotone in northern Brazil. Tectonic uplift and erosion in the late Miocene and climate oscillations in the Pleistocene corresponded with estimated divergence times in the dry diagonal and Amazonia-Cerrado ecotone. Our study highlights the importance of these threatened open formations in the generation of biodiversity in the Neotropics.
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Affiliation(s)
- Cinnamon S Mittan
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA.
| | - Kelly R Zamudio
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - M Tereza C Thomé
- Departamento de Biodiversidade e Centro de Aquicultura, Instituto de Biociências, São Paulo State University (Unesp), Rio Claro, São Paulo, Brazil
| | - Felipe Camurugi
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Campo Grande, Brazil; Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Guarino R Colli
- Departamento de Zoologia, Universidade de Brasília, Brasília, DF, Brazil
| | - Adrian A Garda
- Laboratório de Anfíbios e Répteis, Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Célio F B Haddad
- Departamento de Biodiversidade e Centro de Aquicultura, Instituto de Biociências, São Paulo State University (Unesp), Rio Claro, São Paulo, Brazil
| | - Cynthia P A Prado
- Departamento de Morfologia e Fisiologia Animal, Faculdade de Ciências Agrárias e Veterinárias, São Paulo State University (Unesp), Jaboticabal, São Paulo, Brazil
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26
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de Faria Santos A, Cancello EM, Morales AC. Phylogeography of Nasutitermes ephratae (Termitidae: Nasutitermitinae) in neotropical region. Sci Rep 2022; 12:11656. [PMID: 35804053 PMCID: PMC9270401 DOI: 10.1038/s41598-022-15407-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 06/23/2022] [Indexed: 12/03/2022] Open
Abstract
The neotropical region ranks third in the number of termites and includes five different families. Of these, Termitidae is the most diverse and includes the species Nasutitermes ephratae, which is widespread in the neotropics. To date, only one study has been published about phylogeography in neotropical termites (N. corniger). Here, we explored the population genetic patterns of N. ephratae and also evaluated the phylogeographical processes involved in the evolutionary history of the species. We used the mitochondrial genes 16S rRNA and COII as molecular markers: these were sequenced for 128 samples of N. ephratae. We estimated the genetic diversity and divergence time as well as the demography and genetic structure. We also performed an ancestral area reconstruction and a haplotype network. The results showed high genetic variability, recent demographic expansion, and strong genetic structure. A dispersal route for the species, that occurred in both directions between South and Central America, was inferred. The results emphasize a temporary separation between the South and Central America populations that affected the origin of the current Central America populations. These populations were formed from different phylogeographic histories.
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Affiliation(s)
- Amanda de Faria Santos
- Instituto de Biociências, Letras e Ciências Exatas (IBILCE), Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP, Brazil.
| | - Eliana Marques Cancello
- Museu de Zoologia da Universidade de São Paulo (MZUSP), Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Adriana Coletto Morales
- Instituto de Biociências, Letras e Ciências Exatas (IBILCE), Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP, Brazil. .,Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, Brazil.
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Varella K, Vilela RDV, Gentile R, Cardoso TDS, da Costa-Neto SF, Maldonado Júnior A. Population genetic structure and phenotypic diversity of Aspidodera raillieti (Nematoda: Heterakoidea), a parasite of Didelphini marsupials in Brazil's South and Southeast Atlantic Forest. Parasit Vectors 2022; 15:203. [PMID: 35698157 PMCID: PMC9195327 DOI: 10.1186/s13071-022-05288-6] [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: 12/21/2021] [Accepted: 04/16/2022] [Indexed: 11/18/2022] Open
Abstract
Background The population genetics of parasites may be influenced by host specificity, life cycle, host geographical range, evolutionary history, and host population structure. The nematode Aspidodera raillieti infects different marsupial and rodent hosts in the Nearctic and Neotropical regions, implying a gene flow among populations. However, niche diversification of the main hosts of A. raillieti in superimposed areas may provide conditions for population genetic structuring within this parasite species. We examined the genetic structuring of A. raillieti infecting three marsupial species co-occurring along the South and Southeast Brazilian Atlantic Forest, a hotspot of biodiversity. Methods We employed morphometric analyses and partial mitochondrial cytochrome c oxidase I gene sequences (MT-CO1) to characterize populations via phylogenetic and phylogeographic analyses. Results Among 175 A. raillieti specimens recovered from the marsupial hosts Didelphis aurita, D. albiventris, and Philander quica, we identified 99 MT-CO1 haplotypes forming four haplogroups and four clades in networks and phylogenetic trees, respectively. Clades I and II encompassed parasites of D. albiventris from the South region, clade III comprised parasites of D. aurita from the South and Southeast regions, and clade IV encompassed parasites of D. aurita and D. albiventris from the South and Southeast regions and parasites of P. quica from the South region. High genetic differentiation between clades, with a high fixation index and greater genetic variation in the analysis of molecular variance (AMOVA), indicated low gene flow between clades. Haplotypes shared among host species revealed a lack of host specificity. A significant correlation in the Mantel test suggested parasite isolation by distance, while there was no evidence of geographical structure between populations. Negative neutrality test values for clades III and IV suggested recent population expansion. Morphometric differentiation between A. raillieti specimens recovered from different host species, as well as from different localities, was more evident in males. Conclusion The genetic structure of A. raillieti populations in the South and Southeast Atlantic Forest resulted from historical events rather than from current geographical distribution or host specificity. We also demonstrate morphometric variation associated with host species and localities, suggesting phenotypic plasticity to host attributes and to spatial variables. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05288-6.
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Affiliation(s)
- Karina Varella
- Programa de Pós-Graduação em Biologia Parasitária (PPGBP), Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil.,Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Roberto do Val Vilela
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil.
| | - Rosana Gentile
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Thiago Dos Santos Cardoso
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil
| | | | - Arnaldo Maldonado Júnior
- Programa de Pós-Graduação em Biologia Parasitária (PPGBP), Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil.,Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, RJ, Brazil
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Global Evapotranspiration Datasets Assessment Using Water Balance in South America. REMOTE SENSING 2022. [DOI: 10.3390/rs14112526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Evapotranspiration (ET) connects the land to the atmosphere, linking water, energy, and carbon cycles. ET is an essential climate variable with a fundamental importance, and accurate assessments of the spatiotemporal trends and variability in ET are needed from regional to continental scales. This study compared eight global actual ET datasets (ETgl) and the average actual ET ensemble (ETens) based on remote sensing, climate reanalysis, land-surface, and biophysical models to ET computed from basin-scale water balance (ETwb) in South America on monthly time scale. The 50 small-to-large basins covered major rivers and different biomes and climate types. We also examined the magnitude, seasonality, and interannual variability of ET, comparing ETgl and ETens with ETwb. Global ET datasets were evaluated between 2003 and 2014 from the following datasets: Breathing Earth System Simulator (BESS), ECMWF Reanalysis 5 (ERA5), Global Land Data Assimilation System (GLDAS), Global Land Evaporation Amsterdam Model (GLEAM), MOD16, Penman–Monteith–Leuning (PML), Operational Simplified Surface Energy Balance (SSEBop) and Terra Climate. By using ETwb as a basis for comparison, correlation coefficients ranged from 0.45 (SSEBop) to 0.60 (ETens), and RMSE ranged from 35.6 (ETens) to 40.5 mm·month−1 (MOD16). Overall, ETgl estimates ranged from 0 to 150 mm·month−1 in most basins in South America, while ETwb estimates showed maximum rates up to 250 mm·month−1. ETgl varied by hydroclimatic regions: (i) basins located in humid climates with low seasonality in precipitation, including the Amazon, Uruguay, and South Atlantic basins, yielded weak correlation coefficients between monthly ETgl and ETwb, and (ii) tropical and semiarid basins (areas where precipitation demonstrates a strong seasonality, as in the São Francisco, Northeast Atlantic, Paraná/Paraguay, and Tocantins basins) yielded moderate-to-strong correlation coefficients. An assessment of the interannual variability demonstrated a disagreement between ETgl and ETwb in the humid tropics (in the Amazon), with ETgl showing a wide range of interannual variability. However, in tropical, subtropical, and semiarid climates, including the Tocantins, São Francisco, Paraná, Paraguay, Uruguay, and Atlantic basins (Northeast, East, and South), we found a stronger agreement between ETgl and ETwb for interannual variability. Assessing ET datasets enables the understanding of land–atmosphere exchanges in South America, to improvement of ET estimation and monitoring for water management.
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Shen Y, Wei J, Wang S, Zhang X, Mu K, Liu S, Ma H. The Copper Chaperone Protein Gene GmATX1 Promotes Seed Vigor and Seedling Tolerance under Heavy Metal and High Temperature and Humidity Stresses in Transgenic Arabidopsis. PLANTS 2022; 11:plants11101325. [PMID: 35631750 PMCID: PMC9143580 DOI: 10.3390/plants11101325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022]
Abstract
Abiotic stresses such as high temperature, high humidity, and heavy metals are important factors that affect seed development and quality, and restrict yield in soybean. The ATX1-type copper chaperones are an important type of proteins that are used for maintaining intracellular copper ion homeostasis. In our previous study, a copper chaperone protein GmATX1 was identified in developing seeds of soybean under high temperature and humidity (HTH) stresses. In this study, the GmATX1 gene was isolated, and multiple alignment analysis showed that its encoding protein shared high sequence identities with other plant orthologues of copper chaperone proteins containing the HMA domain, and a conserved metal ion-binding site, CXXC. A subcellular localization assay indicated that GmATX1 was localized in the cell membrane and nucleus. An expression analysis indicated that GmATX1 was involved in seed development, and in response to HTH and heavy metal stresses in soybean. GmATX1-silent soybean seedlings were found to be more severely damaged than the control under HTH stress. Moreover, the silencing of GmATX1 reduced antioxidase activity and reactive oxygen species (ROS) scavenging ability in the seedling leaves. The overexpression of GmATX1 in Arabidopsis improved seed vigor and seedling tolerance, and enhanced antioxidase activity and ROS scavenging ability under HTH and heavy metal stresses. Our results indicated that GmATX1 could promote seed vigor and seedling tolerance to HTH and heavy metal stresses in transgenic Arabidopsis, and this promotion could be achieved by enhancing the antioxidase activity and ROS scavenging ability.
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Affiliation(s)
- Yingzi Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
| | - Jiaping Wei
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
- Gansu Province Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Shuang Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
| | - Xi Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
| | - Kebing Mu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
| | - Sushuang Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
- Department of Life Science and Health, Huzhou University, Huzhou 313000, China
| | - Hao Ma
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.S.); (J.W.); (S.W.); (X.Z.); (K.M.); (S.L.)
- Correspondence: ; Tel./Fax: +86-25-8439-5324
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Lima-Rezende CA, Cabanne GS, Rocha AV, Carboni M, Zink RM, Caparroz R. A comparative phylogenomic analysis of birds reveals heterogeneous differentiation processes among Neotropical savannas. Mol Ecol 2022; 31:3451-3467. [PMID: 35510775 DOI: 10.1111/mec.16487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/25/2022] [Accepted: 04/11/2022] [Indexed: 11/30/2022]
Abstract
The main objective of this study is to evaluate biogeographic hypotheses of diversification and connection between isolated savannas north (Amazonian savannas) and south (Cerrado core) of the Amazon River. To achieve our goal, we employed genomic markers (genotyping-by-sequencing) to evaluate the genetic structure, population phylogenetic relationships, and historical range shifts of four Neotropical passerines with peri-Atlantic distributions: the Narrow-billed Woodcreeper (Lepidocolaptes angustirostris), the Plain-crested Elaenia (Elaenia cristata), the Grassland Sparrow (Ammodramus humeralis), and the White-banded Tanager (Neothraupis fasciata). The population genetic analyses indicated that landscape (e.g., geographic distance, landscape resistance, and percentage of tree cover) and climate metrics explained divergence among populations in most species, but without indicating a differential role between current and historical factors. Our results did not fully support the hypothesis that isolated populations at Amazonian savannas have been recently derived from the Cerrado core domain. Intraspecific phylogenies and gene flow analyses supported multiple routes of connection between the Cerrado and Amazonian savannas, rejecting the hypothesis that the Atlantic corridor explains the peri-Atlantic distribution. Our results reveal that the biogeographic history of the region is complex and cannot be explained by simple vicariant models.
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Affiliation(s)
- Cássia Alves Lima-Rezende
- División de Ornitología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" - CONICET, Buenos Aires, Argentina
| | - Gustavo S Cabanne
- División de Ornitología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" - CONICET, Buenos Aires, Argentina
| | - Amanda Vaz Rocha
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil
| | - Martin Carboni
- División de Ornitología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" - CONICET, Buenos Aires, Argentina
| | - Robert M Zink
- School of Natural Resources, School of Biological Sciences, and Nebraska State Museum, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
| | - Renato Caparroz
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil
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Ramos KS, Martins AC, Melo GAR. Evolution of andrenine bees reveals a long and complex history of faunal interchanges through the Americas during the Mesozoic and Cenozoic. Mol Phylogenet Evol 2022; 172:107484. [PMID: 35452842 DOI: 10.1016/j.ympev.2022.107484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/29/2022]
Abstract
Bees are presumed to have arisen in the early to mid-Cretaceous coincident with the fragmentation of the southern continents and concurrently with the early diversification of the flowering plants. Here, we apply DNA sequences from multiple genes to recover a dated phylogeny and historical biogeographic of andrenine bees, a large group of 3000 species mainly distributed in arid areas of North America, South America, and the Palearctic region. Our results corroborate the monophyly of Andreninae and points toward a South America origin for the group during the Late Cretaceous. Overall, we provide strong evidence of amphitropical distributional pattern currently observed in the American continent as result of faunal interchange in at least three historical periods, much prior to the Panama Isthmus closure. The Palearctic diversity is shown to have arisen from North America during the Eocene and Miocene, and the Afrotropical lineages likely originated from the Palearctic region in the Miocene when the Sahara Desert was mostly vegetated. The incursions from South to North America and then onto the Old World are chronological congruent with periods when open-vegetation habitats were available for trans-continental dispersal and at the times when aridification and temperature decline offered favorable circumstances for bee diversification.
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Affiliation(s)
- Kelli S Ramos
- Museu de Zoologia, Universidade de São Paulo, Av. Nazaré 481, CEP 04263-000 São Paulo, Brazil.
| | - Aline C Martins
- Department of Zoology, University of Brasilia, 70910-900 Brasilia, Distrito Federal, Brazil
| | - Gabriel A R Melo
- Department of Zoology, Federal University of Paraná, PB 19020, 81531-980 Curitiba, Paraná, Brazil
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Dissecting a Geographical Colourful Tapestry: Phylogeography of the Colour Polymorphic Spider Gasteracantha cancriformis. J ZOOL SYST EVOL RES 2022. [DOI: 10.1155/2022/8112945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Species with large distributions provide unique opportunities to test how geography has influenced biotic diversification. In this work, we aimed to explore the effect of geographic barriers on the distribution of the phenotypic and genetic variation of a spider species that is widespread in continental and insular America. We obtained an alignment of the mitochondrial locus Cytochrome Oxidase I (COI) for 408 individuals across the geographic range of Gasteracantha cancriformis. We used phylogenetics, population genetics, and morphology to explore the genetic and phenotypic variation of this species. We found five genetically differentiated and geographically structured populations. Three of them are distributed in continental America, separated by the Andes mountains, and two are in the Caribbean and Galapagos Islands. Some of these geographic clades shared haplotypes between them, which may be a consequence of dispersal. We detected at least 20 phenotypes of G. cancriformis, some of which were exclusive to a geographic region, while others occurred in multiple regions. We did not observe well-defined morphological differences across male genitalia. This evidence suggests that G. cancriformis is a widespread species with high phenotypic variation that should be explored in more depth.
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Malleret MM, Freire MD, Lemes P, Brum FT, Camargo A, Verrastro L. Phylogeography and species delimitation of the Neotropical frog complex (Hylidae:
Scinax granulatus
). ZOOL SCR 2022. [DOI: 10.1111/zsc.12537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matías M. Malleret
- Laboratorio de Biogeografía y Evolución Programa de Desarrollo Universitario, Centro Universitario Regional Noreste, Universidad de la República Rivera Uruguay
| | - Marcelo D. Freire
- Laboratório de Herpetologia Programa de Pós‐graduação em Biologia Animal Instituto de Biociências Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
| | - Priscila Lemes
- Laboratório de Ecologia e Conservação Departamento de Botânica e Ecologia, Insituto de Biociências, Universidade Federal do Mato Grosso Cuiabá Mato Grosso Brazil
| | - Fernanda T. Brum
- Programa de Pós‐graduação em Ecologia e Conservação Universidade Federal do Paraná Curitiba Paraná Brazil
| | - Arley Camargo
- Laboratorio de Biogeografía y Evolución Programa de Desarrollo Universitario, Centro Universitario Regional Noreste, Universidad de la República Rivera Uruguay
| | - Laura Verrastro
- Laboratório de Herpetologia Programa de Pós‐graduação em Biologia Animal Instituto de Biociências Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
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Alvares DJ, Ferrari A, Borges-Martins M. Geographic distribution patterns of amphibians and reptiles from the Uruguayan Savanna. SYST BIODIVERS 2022. [DOI: 10.1080/14772000.2022.2039796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Diego Janisch Alvares
- Programa de Pós–Graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
| | - Augusto Ferrari
- Programa de Pós–Graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, FURG, Campus Carreiros, Rio Grande, Rio Grande do Sul, Brasil
| | - Marcio Borges-Martins
- Programa de Pós–Graduação em Biologia Animal, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brasil
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Magalhães FDM, Camurugi F, Lyra ML, Baldo D, Gehara M, Haddad CFB, Garda AA. Ecological divergence and synchronous Pleistocene diversification in the widespread South American butter frog complex. Mol Phylogenet Evol 2022; 169:107398. [PMID: 35031468 DOI: 10.1016/j.ympev.2022.107398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/31/2021] [Accepted: 11/15/2021] [Indexed: 11/19/2022]
Abstract
Phylogeographic studies primarily focus on the major role of landscape topography in driving lineage diversification. However, populational phylogeographic breaks may also occur as a result of either niche conservatism or divergence, in the absence of geographic barriers to gene flow. Furthermore, these two factors are not mutually exclusive and can act in concert, making it challenging to evaluate their relative importance on explaining genetic variation in nature. Herein, we use sequences of two mitochondrial and four nuclear genes to investigate the timing and diversification patterns of species pertaining to the Leptodactylus latrans complex, which harbors four morphologically cryptic species with broad distributions across environmental gradients in eastern South America. The origin of this species complex dates back to the late Miocene (ca. 5.5 Mya), but most diversification events occurred synchronically during the late Pleistocene likely as the result of ecological divergence driven by Quaternary climatic oscillations. Further, significant patterns of environmental niche divergences among species in the L. latrans complex imply that ecological isolation is the primary mode of genetic diversification, mostly because phylogenetic breaks are associated with environmental transitions rather than topographic barriers at both species and populational scale. We provided new insights about diversification patterns and processes within a species complex of broadly and continuously distributed group of frogs along South America.
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Affiliation(s)
- Felipe de M Magalhães
- Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal da Paraíba-UFPB, Centro de Ciências Exatas e da Natureza, Cidade Universitária, 58000-000 João Pessoa, Paraiba, Brazil; Earth and Environmental Sciences, Ecology and Evolution, Rutgers University-Newark 195 University Ave, Newark, NJ 07102, USA.
| | - Felipe Camurugi
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Cidade Universitária, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Mariana L Lyra
- Instituto de Biociências, Universidade Estadual Paulista, Campus Rio Claro, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Laboratório de Herpetologia, Cx. Postal 199, 13506-900 Rio Claro, São Paulo, Brazil
| | - Diego Baldo
- Instituto de Biología Subtropical (IBS, CONICET-UNaM), Laboratorio de Genética Evolutiva, Facultad de Ciencias Exactas, Universidad Nacional de Misiones, Félix de Azara 1552, CPA N3300LQF Posadas, Misiones, Argentina
| | - Marcelo Gehara
- Earth and Environmental Sciences, Ecology and Evolution, Rutgers University-Newark 195 University Ave, Newark, NJ 07102, USA
| | - Célio F B Haddad
- Instituto de Biociências, Universidade Estadual Paulista, Campus Rio Claro, Departamento de Biodiversidade e Centro de Aquicultura (CAUNESP), Laboratório de Herpetologia, Cx. Postal 199, 13506-900 Rio Claro, São Paulo, Brazil
| | - Adrian A Garda
- Laboratório de Anfíbios e Répteis (LAR), Departamento de Botânica e Zoologia da Universidade Federal do Rio Grande do Norte, Campus Universitário. Lagoa Nova, 59078-900 Natal, Rio Grande do Norte, Brazil
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36
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Silva-Arias GA, Caballero-Villalobos L, Giudicelli GC, Freitas LB. Landscape and climatic features drive genetic differentiation processes in a South American coastal plant. BMC Ecol Evol 2021; 21:196. [PMID: 34702161 PMCID: PMC8547116 DOI: 10.1186/s12862-021-01916-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 09/22/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Historical and ecological processes shape patterns of genetic diversity in plant species. Colonization to new environments and geographical landscape features determine, amongst other factors, genetic diversity within- and differentiation between-populations. We analyse the genetic diversity and population structure of Calibrachoa heterophylla to infer the influence of abiotic landscape features on the level of gene flow in this coastal species of the South Atlantic Coastal Plain. RESULTS The C. heterophylla populations located on early-deposited coastal plain regions show higher genetic diversity than those closer to the sea. The genetic differentiation follows a pattern of isolation-by-distance. Landscape features, such as water bodies and wind corridors, and geographical distances equally explain the observed genetic differentiation, whereas the precipitation seasonality exhibits a strong signal for isolation-by-environment in marginal populations. The estimated levels of gene flow suggest that marginal populations had restricted immigration rates enhancing differentiation. CONCLUSIONS Topographical features related to coastal plain deposition history influence population differentiation in C. heterophylla. Gene flow is mainly restricted to nearby populations and facilitated by wind fields, albeit without any apparent influence of large water bodies. Furthermore, differential rainfall regimes in marginal populations seem to promote genetic differentiation.
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Affiliation(s)
- Gustavo A Silva-Arias
- Professorship for Population Genetics, Department of Life Science Systems, Technical University of Munich, Freising, Germany. .,Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Lina Caballero-Villalobos
- Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Giovanna C Giudicelli
- Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Loreta B Freitas
- Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Poveda-Martínez D, Varone L, Fuentes Corona M, Hight S, Logarzo G, Hasson E. Spatial and host related genomic variation in partially sympatric cactophagous moth species. Mol Ecol 2021; 31:356-371. [PMID: 34662480 DOI: 10.1111/mec.16232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 01/17/2023]
Abstract
Surveys of patterns of genetic variation in natural sympatric and allopatric populations of recently diverged species are necessary to understand the processes driving intra- and interspecific diversification. The South American moths Cactoblastis cactorum, Cactoblastis doddi and Cactoblastis bucyrus are specialized in the use of cacti as host plants. These species have partially different geographic ranges and differ in patterns of host plant use. However, there are areas that overlap, particularly, in northwestern Argentina, where they are sympatric. Using a combination of genome-wide SNPs and mitochondrial data we assessed intra and interspecific genetic variation and investigated the relative roles of geography and host plants on genetic divergence. We also searched for genetic footprints of hybridization between species. We identified three well delimited species and detected signs of hybridization in the area of sympatry. Our results supported a hypothetical scenario of allopatric speciation in the generalist C. cactorum and genetic interchange during secondary geographic contact with the pair of specialists C. bucyrus and C. doddi that probably speciated sympatrically. In both cases, adaptation to new host plants probably played an important role in speciation. The results also suggested the interplay of geography and host plant use as drivers of divergence and limiting gene flow at intra and interspecific levels.
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Affiliation(s)
- Daniel Poveda-Martínez
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina.,Instituto de Ecología Genética y Evolución de Buenos Aires (IEGEBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Grupo de investigación en Evolución, Ecología y Conservación (EECO), Universidad del Quindío, Armenia, Colombia.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Laura Varone
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Malena Fuentes Corona
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Stephen Hight
- Insect Behavior and Biocontrol Research Unit (IBBRU), USDA-ARS, Tallahassee, Florida, USA
| | - Guillermo Logarzo
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina
| | - Esteban Hasson
- Instituto de Ecología Genética y Evolución de Buenos Aires (IEGEBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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38
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Bonatelli IAS, Gehara M, Carstens BC, Colli GR, Moraes EM. Comparative and predictive phylogeography in the South American diagonal of open formations: Unravelling the biological and environmental influences on multitaxon demography. Mol Ecol 2021; 31:331-342. [PMID: 34614269 DOI: 10.1111/mec.16210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/28/2022]
Abstract
Phylogeography investigates historical drivers of the geographical distribution of intraspecific lineages. Particular attention has been given to ecological, climatic and geological processes in the diversification of the Neotropical biota. Several species sampled across the South American diagonal of open formations (DOF), comprising the Caatinga, Cerrado and Chaco biomes, experienced range shifts coincident with Quaternary climatic changes. However, comparative studies across different spatial, temporal and biological scales on DOF species are still meagre. Here, we combine phylogeographical model selection and machine learning predictive frameworks to investigate the influence of Pleistocene climatic changes on several plant and animal species from the DOF. We assembled mitochondrial/chloroplastic DNA sequences in public repositories and inferred the demographic responses of 44 species, comprising 70 intraspecific lineages of plants, lizards, frogs, spiders and insects. We then built a random forest model using biotic and abiotic information to identify the best predictors of demographic responses in the Pleistocene. Finally, we assessed the temporal synchrony of species demographic responses with hierarchical approximate Bayesian computation. Biotic variables related to population connectivity, gene flow and habitat preferences largely predicted how species responded to Pleistocene climatic changes, and demographic changes were synchronous primarily during the Middle Pleistocene. Although 22 (~31%) lineages underwent demographic expansion, presumably associated with the spread of aridity during the glacial Pleistocene periods, our findings suggest that nine lineages (~13%) exhibited the opposite response due to taxon-specific attributes.
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Affiliation(s)
- Isabel A S Bonatelli
- Departamento de Biologia, Universidade Federal de São Carlos, Sorocaba, Brazil.,Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo, Diadema, Brazil
| | - Marcelo Gehara
- Department of Earth and Environmental Sciences, Rutgers University-Newark, Newark, New Jersey, USA
| | - Bryan C Carstens
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, Ohio, USA
| | - Guarino R Colli
- Departamento de Zoologia, Universidade de Brasília, Brasília, Brazil
| | - Evandro M Moraes
- Departamento de Biologia, Universidade Federal de São Carlos, Sorocaba, Brazil
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Prado JR, Percequillo AR, Pirani RM, Thomaz AT. Phenotypic and genomic differences between biomes of the South America marsh rat, Holochilus brasiliensis. Biol J Linn Soc Lond 2021. [DOI: 10.1093/biolinnean/blab132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Abiotic factors can influence genetic and phenotypic divergence in several ways, and identifying the mechanisms responsible for generating this variation is challenging. However, when evaluated in combination, ecological characteristics and genetic and phenotypic information can help us to understand how habitat preferences can influence morphological and genetic patterns exhibited by taxa distributed between distinct biomes, such as the Atlantic Forest and Pampas biomes in South America. By combining distributional, environmental, phenotypic and genomic information from a habitat-specialist semi-aquatic rodent (Holochilus brasiliensis), we quantified the relationship between ecological niche differences and the phenotypic and genetic variation. The results demonstrate notable segregation among the ecological niches of H. brasiliensis within each biome, although we could not refute the hypothesis of niche similarity or equivalency. Such differences are consistent with a solid morphometric variation associated with the size of these rodents. However, the ecological and morphometric differentiation is not accompanied by the same pattern of genetic variation. Despite differences in the connectivity patterns in both biomes, the genetic differences corroborate a consistent level of migration history between biomes. Additionally, the association tests show that the environment explains a small and non- significant part of the genetic variation but a significant portion of the morphometric variation.
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Affiliation(s)
- Joyce R Prado
- Departamento de Ciências Biológicas, Escola Superior de Agricultura ‘Luiz de Queiroz’, Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Alexandre R Percequillo
- Departamento de Ciências Biológicas, Escola Superior de Agricultura ‘Luiz de Queiroz’, Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Renata M Pirani
- Biology Department, University of Nevada-Reno, Reno, NV, USA
| | - Andrea T Thomaz
- Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, DC, Colombia
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Thomé MTC, Carstens BC, Rodrigues MT, Galetti PM, Alexandrino J, Haddad CFB. A role of asynchrony of seasons in explaining genetic differentiation in a Neotropical toad. Heredity (Edinb) 2021; 127:363-372. [PMID: 34304245 PMCID: PMC8478927 DOI: 10.1038/s41437-021-00460-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 07/09/2021] [Accepted: 07/11/2021] [Indexed: 02/07/2023] Open
Abstract
The process of diversification can be studied at the phylogeographic level by attempting to identify the environmental features that promote and maintain population divergence. Here we investigate diversification in Rhinella granulosa, a Neotropical toad from northeastern Brazil, by testing a range of hypotheses that encompass different putative mechanisms reducing gene flow among populations. We sequenced single nucleotide polymorphisms and examined individual predictions related to the role of geographic barriers (rivers), ecological gradients, historical habitat stability, and spatial variation in climate seasonality, also known as the asynchrony of seasons hypothesis. This hypothesis postulates that temporal asynchrony of wet and dry seasons over short distances causes parapatric populations to become isolated by time. After determining genetic structure, inferring past distributions, ranking demographic models, and estimating the power of monthly climatic variables, our results identified two populations that are not associated with geographic barriers, biome gradients, or historical refugia. Instead, they are predicted by spatial variation in monthly rainfall and minimum temperature, consistent with the asynchrony of seasons hypothesis, supported also by our comparative framework using multiple matrix regression and linear mixed effects modeling. Due to the toad's life history, climate likely mediates gene flow directly, with genetic differentiation being provoked by neutral mechanisms related to climate driven population isolation, and/or by natural selection against migrants from populations with different breeding times. The asynchrony of seasons hypothesis is seldom considered in phylogeographic studies, but our results indicate that it should be tested in systems where breeding is tightly coupled with climate.
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Affiliation(s)
- Maria Tereza C Thomé
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, USA.
- Departamento de Biodiversidade e Centro de Aquicultura, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP, Brazil.
| | - Bryan C Carstens
- Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH, USA
| | - Miguel Trefaut Rodrigues
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Pedro Manoel Galetti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - João Alexandrino
- Departamento de Ecologia e Biologia Evolutiva, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Célio F B Haddad
- Departamento de Biodiversidade e Centro de Aquicultura, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP, Brazil
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41
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Teixeira TM, Nazareno AG. One Step Away From Extinction: A Population Genomic Analysis of A Narrow Endemic, Tropical Plant Species. FRONTIERS IN PLANT SCIENCE 2021; 12:730258. [PMID: 34630476 PMCID: PMC8496504 DOI: 10.3389/fpls.2021.730258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Intraspecific genetic variation plays a fundamental role in maintaining the evolutionary potential of wild populations. Hence, the assessment of genetic diversity patterns becomes essential to guide biodiversity conservation policies, particularly for threatened species. To inform management strategies for conservation of Mimosa catharinensis - a narrow endemic, critically endangered plant species - we identified 1,497 unlinked SNP markers derived from a reduced representation sequencing method (i.e., double digest restriction site associated DNA sequencing, or ddRADseq). This set of molecular markers was employed to assess intrapopulation genetic parameters and the demographic history of one extremely small population of M. catharinensis (N=33) located in the Brazilian Atlantic Forest. Contrary to what is expected for narrow endemic and threatened species with small population sizes, we observed a moderate level of genetic diversity for M. catharinensis [uH E(0%missing data)=0.205, 95% CI (0.160, 0.250); uH E(30%missing data)=0.233, 95% CI (0.174, 0.292)]. Interestingly, M. catharinensis, which is a lianescent shrub with no indication of seed production for at least two decades, presented high levels of outcrossing [t (0%missing data)=0.883, SE±0.0483; t (30%missing data)=0.909, SE±0.011] and an apparent absence of inbreeding [F (0%missing data)=-0.145, 95% CI (-0.189, -0.101); F (30%missing data)=-0.105, 95% CI (-0.199, -0.011)]. However, the reconstruction of demographic history of M. catharinensis indicated that the population should be suffered a recent bottleneck. Our population genomic study tackles a central issue in evolution and conservation biology and we expect that it will be useful to help safeguard the remaining genetic diversity reported for this unique genetic resource.
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Affiliation(s)
- Thais M. Teixeira
- Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Alison G. Nazareno
- Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, Brazil
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States
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Barrios-Leal DY, Menezes RST, Ribeiro JV, Bizzo L, Melo de Sene F, Neves-da-Rocha J, Manfrin MH. A holocenic and dynamic hybrid zone between two cactophilic Drosophila species in a coastal lowland plain of the Brazilian Atlantic Forest. J Evol Biol 2021; 34:1737-1751. [PMID: 34538008 DOI: 10.1111/jeb.13934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
Hybridization and introgression are processes that contribute to shaping biological diversity. The factors promoting the formation of these processes are multiples but poorly explored in a biogeographical and ecological context. In the southeast coastal plain of the Brazilian Atlantic Forest, a hybrid zone was described between two closely related cactophilic species, Drosophila antonietae and D. serido. Here, we revisited and analysed specimens from this hybrid zone to evaluate its temporal and spatial dynamic. We examined allopatric and sympatric populations of the flies using independent sources of data such as mitochondrial and nuclear sequences, microsatellite loci, morphometrics of wings and male genitalia, and climatic niche models. We also verified the emergence of the flies from necrotic tissues of collected cacti to verify the role of host association for the population dynamics. Our results support the existence of a hybrid zone due to secondary contact and limited to the localities where the two species are currently in contact. Furthermore, we detected asymmetric bidirectional introgression and the maintenance of the species integrity, ecological association and morphological characters, suggesting selection and limited introgression. Considering our paleomodels, probably this hybrid zone is recent and the contact occurred during the Holocene to the present day, favoured by range expansion of their populations due to expansion of open and dry areas in eastern South America during palaeoclimatic and geomorphological events.
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Affiliation(s)
- Dora Yovana Barrios-Leal
- Pós-Graduação, Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Rodolpho S T Menezes
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - João Victor Ribeiro
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Luiz Bizzo
- UNIVALI - Universidade do Vale do Itajaí, Itajaí, Santa Catarina, Brazil.,Centro Universitário - Católica de Santa Catarina, Jaraguá do Sul, Santa Catarina, Brazil
| | - Fabio Melo de Sene
- Pós-Graduação, Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - João Neves-da-Rocha
- Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Maura Helena Manfrin
- Pós-Graduação, Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
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Abstract
Extinction of species has been a recurrent phenomenon in the history of our planet, but it was generally outweighed in the course of quite a long geological time by the appearance of new species, except, especially, for the five geologically short times when the so-called “Big Five” mass extinctions occurred. Could the current decline in biodiversity be considered as a signal of an ongoing, human-driven sixth mass extinction? This note briefly examines some issues related to: (i) The hypothesized current extinction rate and the magnitude of contemporary global biodiversity loss; (ii) the challenges of comparing them to the background extinction rate and the magnitude of the past Big Five mass extinction events; (iii) briefly considering the effects of the main anthropogenic stressors on ecosystems, including the risk of the emergence of pandemic diseases. A comparison between the Pleistocene fauna dynamics with the present defaunation process and the cascading effects of recent anthropogenic actions on ecosystem structure and functioning suggests that habitat degradation, ecosystem fragmentation, and alien species introduction are important stressors increasing the negative impact on biodiversity exerted by anthropogenic-driven climate changes and their connected effects. In addition, anthropogenic ecological stressors such as urbanization, landscapes, and wildlife trade, creating new opportunities for virus transmission by augmenting human contact with wild species, are among the main factors triggering pandemic diseases.
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Sympatric and independently evolving lineages in the Thoropa miliaris - T. taophora species complex (Anura: Cycloramphidae). Mol Phylogenet Evol 2021; 166:107220. [PMID: 34481948 DOI: 10.1016/j.ympev.2021.107220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 04/28/2021] [Accepted: 06/01/2021] [Indexed: 11/20/2022]
Abstract
Species delimitation can be challenging and affected by subjectivity. Sibling lineages that occur in sympatry constitute good candidates for species delimitation regardless of the adopted species concept. The Thoropa miliaris + T. taophora species complex exhibits high genetic diversity distributed in several lineages that occur sympatrically in the southeastern Atlantic Forest of Brazil. We used 414 loci obtained by anchored hybrid enrichment to characterize genetic variation in the Thoropa miliaris species group (T. saxatilis, T megatympanum, T. miliaris, and T. taophora), combining assignment analyses with traditional and coalescent phylogeny reconstruction. We also investigated evolutionary independence in co-occurring lineages by estimating gene flow, and validated lineages under the multispecies coalescent. We recovered most previously described lineages as unique populations in assignment analyses; exceptions include two lineages within T. miliaris that are further substructured, and the merging of all T. taophora lineages. We found very low probabilities of gene flow between sympatric lineages, suggesting independent evolution. Species tree inferences and species delimitation yielded resolved relationships and indicate that all lineages constitute putative species that diverged during the Pliocene and Pleistocene, later than previously estimated.
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45
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Moreno EMS, Pico GMVDO, Kovalsky IE, Luque JMR, Seijo JG, Neffa VGS. Species diversification in the lowlands of mid-latitude South America: Turnera sidoides subsp. carnea as a case study. AN ACAD BRAS CIENC 2021; 93:e20201067. [PMID: 34468489 DOI: 10.1590/0001-3765202120201067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 12/27/2020] [Indexed: 11/21/2022] Open
Abstract
The lowlands of mid-latitude South America comprise complex temperate ecoregions characterized by a unique biodiversity. However, the processes responsible for shaping its species diversity are still largely unknown. Turnera sidoides subsp. carnea is a variable subspecies occurring in the lowlands of northeastern Argentina and Uruguay, extending to southern Paraguay and Brazil. It constitutes a good model to perform evolutionary studies. Here we used an integrative approach to understand the process of diversification within this subspecies and to increase the knowledge concerning patterns and processes responsible for shaping the species diversity in the temperate lowlands of South America. The results provided strong evidences that this subspecies is an autopolyploid complex per se, being in an active process of intrasubspecific diversification. Morphological and genetic data show that the diversity of T. sidoides subsp. carnea is in congruence with the great past and present abiotic and biotic variability of the mid-latitude South American lowlands. The evolutionary history of this subspecies is consistent with past fragmentation and allopatric differentiation at diploid level. Geographic isolation and local adaptation would have promoted strong morphological, ecological, and genetic differentiation, resulting in two morphotypes and different genetic groups indicative of incipient speciation.
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Affiliation(s)
- Ercilia M S Moreno
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina.,Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Libertad 5460, 3400, Corrientes, Argentina
| | - Gisela M Via DO Pico
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina
| | - Ivana E Kovalsky
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina.,Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Libertad 5460, 3400, Corrientes, Argentina
| | - Juan M Roggero Luque
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina
| | - José G Seijo
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina.,Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Libertad 5460, 3400, Corrientes, Argentina
| | - Viviana G Solís Neffa
- Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, 3400, Corrientes, Argentina.,Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Libertad 5460, 3400, Corrientes, Argentina
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Quiroga-Carmona M. Exploring the effects of the quaternary glacial–interglacial cycles on the geographic distributions of tropical Andean rodents: species in the genus Aepeomys Thomas, 1898 (Thomasomyini: Sigmodontinae: Cricetidae) as a case study. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2021. [DOI: 10.1080/01650521.2021.1948654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Marcial Quiroga-Carmona
- Doctorado en Ciencias, Mención Ecología y Evolución, Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja S/n, Valdivia, Chile
- Colección de Mamíferos, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
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Zucoloto RB, Bomfim GC, de Campos Fernandes FM, Schnadelbach AS, Piña CI, Verdade LM. Effective population size of broad-snouted caiman (Caiman latirostris) in Brazil: A historical and spatial perspective. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Sassone AB, Hojsgaard DH, Giussani LM, Brassac J, Blattner FR. Genomic, karyological and morphological changes of South American garlics (Ipheion) provide insights into mechanisms of speciation in the Pampean region. Mol Ecol 2021; 30:3716-3729. [PMID: 34087027 DOI: 10.1111/mec.16009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/19/2021] [Accepted: 05/21/2021] [Indexed: 01/15/2023]
Abstract
Speciation proceeds through mechanisms that promote reproductive isolation and shape the extent of genetic variation in natural populations, and thus its study is essential to understand the evolutionary processes leading to increased biodiversity. Chromosomal rearrangements are known to facilitate reproductive isolation by hybrid sterility and favour speciation events. The genus Ipheion (Amaryllidaceae, Allioideae) is unique as its species exhibit a remarkable karyological variability but lack population-level genetic data. To unveil the diversification processes acting upon the formation of new lineages within Ipheion in the Pampas of South America, we combined morphology and karyology approaches with genotyping-by-sequencing. Our phylogenomic and population genomics results supported the taxonomic division of Ipheion into three morphological and genetically well-differentiated groups. The origin of Ipheion uniflorum was traced back to its current southern distribution area in the southern Pampean region (in Argentina), from where it had expanded to the north reaching Uruguay. Our results further suggested that chromosome rearrangements and ploidy shifts had triggered speciation events, first during the origin of I. uniflorum and later during its subsequent diversification into I. recurvifolium and I. tweedieanum, in both cases reinforced by extrinsic factors and biogeographical settings. The current study illustrates the analytical power of multidisciplinary approaches integrating phylo- and population genomics with classic analyses to reveal evolutionary processes in plants.
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Affiliation(s)
- Agostina B Sassone
- Instituto de Botánica Darwinion, CONICET-ANCEFN, Buenos Aires, Argentina.,Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Diego H Hojsgaard
- Department of Systematics, Biodiversity, and Evolution of Plants, Albrecht-von-Haller Institute for Plant Sciences, University of Goettingen, Goettingen, Germany
| | - Liliana M Giussani
- Instituto de Botánica Darwinion, CONICET-ANCEFN, Buenos Aires, Argentina
| | - Jonathan Brassac
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Frank R Blattner
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
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49
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Galuszynski NC. The transition to agricultural cultivation of neo-crops may fail to account for wild genetic diversity patterns: insights from the Cape Floristic Region. PeerJ 2021; 9:e11462. [PMID: 34178439 PMCID: PMC8197031 DOI: 10.7717/peerj.11462] [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: 12/17/2020] [Accepted: 04/26/2021] [Indexed: 11/20/2022] Open
Abstract
Aim The global increase in the cultivation of native wild plants has raised concerns regarding potential risks associated with translocating genetic lineages beyond their natural range. This study aimed to investigate whether agricultural cultivation of neo-crops (a) accounts for the levels of genetic diversity present in wild populations, and whether (b) cultivated populations are genetically divergent from wild populations and thus pose a potential threat to wild genetic diversity. Location The Cape Floristic Region (CFR), located along the southern Cape of South Africa. Methods High Resolution Melt analysis (HRM) coupled with Sanger sequencing was used to screen three non-coding chloroplast DNA loci in Cyclopia Vent. (Fabaceae), a CFR endemic neo-crop cultivated for the production of a herbal infusion referred to as Honeybush tea. Wild and cultivated populations for three of three widely cultivated Honeybush species (C. intermedia, C. longifolia, and C. subternata) were screened. Genetic diversity and differentiation were measured and compared between wild and cultivated groups. Results Across all asseccions, a total of 17 haplotypes were detected, four of which were shared between wild and cultivated populations, while the remaining 13 were only detected in wild populations. Genetic diversity and differentiation was significantly higher in wild populations than in cultivated populations. Conclusions If no guidelines exist to facilitate the introduction of native wild plant taxa to a cultivated setting, wild genetic diversity patterns are likely to be compromised by cultivated populations. In the case presented here, cultivation represents a genetic bottleneck, failing to account for rare haplotypes, and may have disrupted species boundaries by initiating interspecific hybridization. More empirical work is required to evaluate the extent to which neo-crop cultivation poses a risk to wild genetic resources in the CFR and globally.
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Fegies AC, Carmignotto AP, Perez MF, Guilardi MD, Lessinger AC. Molecular Phylogeny of Cryptonanus (Didelphidae: Thylamyini): Evidence for a recent and complex diversification in South American open biomes. Mol Phylogenet Evol 2021; 162:107213. [PMID: 34029717 DOI: 10.1016/j.ympev.2021.107213] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 05/07/2021] [Accepted: 05/19/2021] [Indexed: 11/30/2022]
Abstract
Systematic revisions of South American marsupials have contributed to our knowledge about genus and species diversity in the last decades, including studies of the most recently described genus Cryptonanus (Didelphidae), currently comprising four recognized species. Herein we provide the first phylogeny for these mouse opossums based on comprehensive sampling, including representatives from all nominal taxa, encompassing most of the geographic distribution of the genus while also extending its known range. The taxonomic status of Cryptonanus species was explored by analyses of multiple mitochondrial and nuclear DNA markers to assess phylogenetic relationships and to provide divergence time estimates, species delimitations and biogeographical hypotheses. Cryptonanus monophyly remained highly supported despite the inclusion of abundant new data from more than a hundred specimens, comprising 10 independent evolutionary lineages. Species-complexes within valid nominal taxa reveal higher species richness in the genus. Based on divergence estimates from a dated phylogeny, we suggest that Cryptonanus diversified along the Quaternary, with speciation events occurring well into the Pleistocene. The best supported biogeographical hypothesis endorses speciation by vicariance and subset speciation across open formations in shaping the evolutionary history of this didelphid genus, strongly associated with dry tropical landscapes of South America.
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Affiliation(s)
- Ana Cláudia Fegies
- Departamento de Engenharia Ambiental, Universidade Estadual Paulista (UNESP), Campus Sorocaba, Av. Três de Março 511, Sorocaba, São Paulo CEP 18087-180, Brazil
| | - Ana Paula Carmignotto
- Departamento de Biologia, Universidade Federal de São Carlos (UFSCar), Campus Sorocaba, Rodovia João Leme dos Santos km 110, Sorocaba, São Paulo CEP 18052-780, Brazil.
| | - Manolo Fernandez Perez
- Departamento de Genética e Evolução, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís km 235, São Carlos, São Paulo CEP 13565-905, Brazil
| | - Mariana Dias Guilardi
- Laboratório de Ecologia e Evolução, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, São Paulo CEP 05503-000, Brazil
| | - Ana Cláudia Lessinger
- Departamento de Biologia, Universidade Federal de São Carlos (UFSCar), Campus Sorocaba, Rodovia João Leme dos Santos km 110, Sorocaba, São Paulo CEP 18052-780, Brazil.
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