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Tiburtini M, Bacchetta G, Sarigu M, Cambria S, Caputo P, De Luca D, Domina G, Turini A, Peruzzi L. Integrative Taxonomy of Armeria Taxa (Plumbaginaceae) Endemic to Sardinia and Corsica. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112229. [PMID: 37299208 DOI: 10.3390/plants12112229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Sardinia and Corsica are two Mediterranean islands where the genus Armeria is represented by 11 taxa, 10 out of which are endemic. An integrative approach, using molecular phylogeny, karyology, and seed and plant morphometry was used to resolve the complex taxonomy and systematics in this group. We found that several taxa are no longer supported by newly produced data. Accordingly, we describe a new taxonomic hypothesis that only considers five species: Armeria leucocephala and A. soleirolii, endemic to Corsica, and A. morisii, A. sardoa, and A. sulcitana, endemic to Sardinia.
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Affiliation(s)
- Manuel Tiburtini
- PLANTSEED Lab, Department of Biology, University of Pisa, Via Derna 1, 56126 Pisa, Italy
| | - Gianluigi Bacchetta
- Centre for Conservation of Biodiversity (CCB), Department of Life and Environmental Sciences, University of Cagliari, V.le S. Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Marco Sarigu
- Centre for Conservation of Biodiversity (CCB), Department of Life and Environmental Sciences, University of Cagliari, V.le S. Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Salvatore Cambria
- Department of Biological, Geological and Environmental Sciences, University of Catania, Via Antonino Longo 19, 95125 Catania, Italy
| | - Paolo Caputo
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80100 Naples, Italy
| | - Daniele De Luca
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80100 Naples, Italy
| | - Gianniantonio Domina
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Alessia Turini
- PLANTSEED Lab, Department of Biology, University of Pisa, Via Derna 1, 56126 Pisa, Italy
| | - Lorenzo Peruzzi
- PLANTSEED Lab, Department of Biology, University of Pisa, Via Derna 1, 56126 Pisa, Italy
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Bruno Agudo A, Xavier Picó F, Mateo RG, Marcer A, Torices R, Álvarez I. Unravelling plant diversification: Intraspecific genetic differentiation in hybridizing Anacyclus species in the western Mediterranean Basin. AMERICAN JOURNAL OF BOTANY 2023; 110:e16121. [PMID: 36541247 DOI: 10.1002/ajb2.16121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
PREMISE The interfertile species Anacyclus clavatus, A. homogamos, and A. valentinus represent a plant complex coexisting in large anthropic areas of the western Mediterranean Basin with phenotypically mixed populations exhibiting a great floral variation. The goal of this study was to estimate the genetic identity of each species, to infer the role of hybridization in the observed phenotypic diversity, and to explore the effect of climate on the geographic distribution of species and genetic clusters. METHODS We used eight nuclear microsatellites to genotype 585 individuals from 31 populations of three Anacyclus species for population genetic analyses by using clustering algorithms based on Bayesian models and ordination methods. In addition, we used ecological niche models and niche overlap analyses for both the species and genetic clusters. We used an expanded data set, including 721 individuals from 129 populations for ecological niche models of the genetic clusters. RESULTS We found a clear correspondence between species and genetic clusters, except for A. clavatus that included up to three genetic clusters. We detected individuals with admixed genetic ancestry in A. clavatus and in mixed populations. Ecological niche models predicted similar distributions for species and genetic clusters. For the two specific genetic clusters of A. clavatus, ecological niche models predicted remarkably different areas. CONCLUSIONS Gene flow between Anacyclus species likely explains phenotypic diversity in contact areas. In addition, we suggest that introgression could be involved in the origin of one of the two A. clavatus genetic clusters, which also showed ecological differentiation.
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Affiliation(s)
- A Bruno Agudo
- Departamento de Biodiversidad y Conservación, Real Jardín Botánico (RJB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - F Xavier Picó
- Departamento de Ecología y Evolución, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas (CSIC), Sevilla, Spain
| | - Rubén G Mateo
- Departamento de Biología (Botánica), Universidad Autónoma de Madrid, Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
| | - Arnald Marcer
- CREAF, E 08193, Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
- Universitat Autònoma de Barcelona, E 08193, Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
| | - Rubén Torices
- Área de Biodiversidad y Conservación, Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - Inés Álvarez
- Departamento de Biodiversidad y Conservación, Real Jardín Botánico (RJB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
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Varaldo L, Guerrina M, Dagnino D, Minuto L, Casazza G. Dealing with disjunct populations of vascular plants: implications for assessing the effect of climate change. Oecologia 2023; 201:421-434. [PMID: 36738314 PMCID: PMC9945546 DOI: 10.1007/s00442-023-05323-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/15/2023] [Indexed: 02/05/2023]
Abstract
Species distribution models are the most widely used tool to predict species distributions for species conservation and assessment of climate change impact. However, they usually do not consider intraspecific ecological variation exhibited by many species. Overlooking the potential differentiation among groups of populations may lead to misplacing any conservation actions. This issue may be particularly relevant in species in which few populations with potential local adaptation occur, as in species with disjunct populations. Here, we used ecological niche modeling to analyze how the projections of current and future climatically suitable areas of 12 plant species can be affected using the whole taxa occurrences compared to occurrences from geographically disjunct populations. Niche analyses suggest that usually the disjunct group of populations selects the climatic conditions as similar as possible to the other according to climate availability. Integrating intraspecific variability only slightly increases models' ability to predict species occurrences. However, it results in different predictions of the magnitude of range change. In some species, integrating or not integrating intraspecific variability may lead to opposite trend in projected range change. Our results suggest that integrating intraspecific variability does not strongly improve overall models' accuracy, but it can result in considerably different conclusions about future range change. Consequently, accounting for intraspecific differentiation may enable the detection of potential local adaptations to new climate and so to design targeted conservation strategies.
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Affiliation(s)
- Lucia Varaldo
- Università di Genova, Dipartimento di Scienze della terra, Ambiente e Vita, Corso Europa 26, I-16132, Genoa, Italy
| | - Maria Guerrina
- Università di Genova, Dipartimento di Scienze della terra, Ambiente e Vita, Corso Europa 26, I-16132, Genoa, Italy
| | - Davide Dagnino
- Università di Genova, Dipartimento di Scienze della terra, Ambiente e Vita, Corso Europa 26, I-16132, Genoa, Italy
| | - Luigi Minuto
- Università di Genova, Dipartimento di Scienze della terra, Ambiente e Vita, Corso Europa 26, I-16132, Genoa, Italy.
| | - Gabriele Casazza
- Università di Genova, Dipartimento di Scienze della terra, Ambiente e Vita, Corso Europa 26, I-16132, Genoa, Italy
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Casazza G, Macrì C, Dagnino D, Guerrina M, Juin M, Minuto L, Thompson JD, Baumel A, Médail F. When ecological marginality is not geographically peripheral: exploring genetic predictions of the centre-periphery hypothesis in the endemic plant Lilium pomponium. PeerJ 2021; 9:e11039. [PMID: 33854841 PMCID: PMC7955672 DOI: 10.7717/peerj.11039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 02/09/2021] [Indexed: 01/14/2023] Open
Abstract
Background Quantifying variation of genetic traits over the geographical range of species is crucial for understanding the factors driving their range dynamics. The center-periphery hypothesis postulates, and many studies support, the idea that genetic diversity decreases and genetic differentiation increases toward the geographical periphery due to population isolation. The effects of environmental marginality on genetic variation has however received much less attention. Methods We tested the concordance between geographical and environmental gradients and the genetic predictions of center-periphery hypothesis for endemic Lilium pomponium in the southern Alps. Results We found little evidence for concordance between genetic variation and both geographical and environmental gradients. Although the prediction of increased differentiation at range limits is met, genetic diversity does not decrease towards the geographical periphery. Increased differentiation among peripheral populations, that are not ecologically marginal, may be explained by a decrease in habitat availability that reduces population connectivity. In contrast, a decrease of genetic diversity along environmental but not geographical gradients may be due to the presence of low quality habitats in the different parts of the range of a species that reduce effective population size or increase environmental constraints. As a result, environmental factors may affect population dynamics irrespective of distance from the geographical center of the range. In such situations of discordance between geographical and environmental gradients, the predictions of decreasing genetic diversity and increasing differentiation toward the geographical periphery may not be respected.
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Affiliation(s)
- Gabriele Casazza
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD. Technopôle de l'Arbois-Méditerranée, Aix en Provence, France
| | - Carmelo Macrì
- Department for the Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genova, Italy
| | - Davide Dagnino
- Department for the Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genova, Italy
| | - Maria Guerrina
- Department for the Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genova, Italy
| | - Marianick Juin
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD. Technopôle de l'Arbois-Méditerranée, Aix en Provence, France
| | - Luigi Minuto
- Department for the Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genova, Italy
| | - John D Thompson
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Alex Baumel
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD. Technopôle de l'Arbois-Méditerranée, Aix en Provence, France
| | - Frédéric Médail
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD. Technopôle de l'Arbois-Méditerranée, Aix en Provence, France
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Macrì C, Dagnino D, Guerrina M, Médail F, Minuto L, Thompson JD, Casazza G. Effects of environmental heterogeneity on phenotypic variation of the endemic plant Lilium pomponium in the Maritime and Ligurian Alps. Oecologia 2020; 195:93-103. [PMID: 33269409 PMCID: PMC7882563 DOI: 10.1007/s00442-020-04806-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 11/12/2020] [Indexed: 11/29/2022]
Abstract
Geographical limits of species’ distributions are assumed to be coincident with ecological margins, although this assumption might not always be true. Indeed, harsh environments such as Alpine and Mediterranean ecosystems may favour high phenotypic variability among populations, especially those in peripheral sites. Floral traits are often found to be less variable and less affected by environmental heterogeneity than vegetative traits because variation in the former may have negative effects on fitness. For this reason, it is important to quantify variation in floral traits and plant fecundity in study range limits. The objective of the study is to examine phenotypic variation and differences in reproduction in endemic Lilium pomponium in the Maritime and Ligurian Alps in relation to environmental variation across its distribution range. In this species, marginal climatic populations occur both in the peripheral and central geographical locations of the distribution range; hence, geographical and ecological gradients are not concordant. Floral trait variation is related to local environmental conditions with an array of interactions among resource availability, potential pollen limitation and population size that are differentially related to floral traits. Contrary to the general expectation, all central and peripheral populations had similar, moderate seed production with each group limited by different factors acting on different stages of the life-history strategy. Our results are in line with the idea that general expectations are confirmed only when its assumptions are met and that the differences in pollination environment along an environmental gradient may not be the main determinant of the distribution limit.
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Affiliation(s)
- Carmelo Macrì
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita (DISTAV), University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Davide Dagnino
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita (DISTAV), University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Maria Guerrina
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita (DISTAV), University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Frédéric Médail
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD, Technopôle de l'Arbois-Méditerranée, BP 80, 13545, Aix-en-Provence Cedex 4, France
| | - Luigi Minuto
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita (DISTAV), University of Genoa, Corso Europa 26, 16132, Genoa, Italy.
| | - John D Thompson
- Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, 1919 route de Mende, 34293, Montpellier Cedex 5, France
| | - Gabriele Casazza
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, Avignon Université, CNRS, IRD, Technopôle de l'Arbois-Méditerranée, BP 80, 13545, Aix-en-Provence Cedex 4, France
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González-Miguéns R, Muñoz-Nozal E, Jiménez-Ruiz Y, Mas-Peinado P, Ghanavi HR, García-París M. Speciation patterns in the Forficula auricularia species complex: cryptic and not so cryptic taxa across the western Palaearctic region. Zool J Linn Soc 2020. [DOI: 10.1093/zoolinnean/zlaa070] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Forficula auricularia (the European earwig) is possibly a complex of cryptic species. To test this hypothesis, we performed: (1) a phylogeographic study based on fragments of the mitochondrial COI and the nuclear ITS2 markers on a wide geographic sampling, (2) morphometric analyses of lineages present in Spain and (3) niche overlap analyses. We recovered five reciprocally monophyletic ancient phylogroups with unique historical patterns of distribution, climatic niches and diversification. External morphology was conserved and not correlated with speciation events, except in one case. Phylogenetic placement of the morphologically distinct taxon renders F. auricularia paraphyletic. Based on the congruence of the phylogenetic units defined by mtDNA and nuclear sequence data, we conclude that phylogroups have their own historical and future evolutionary trajectory and represent independent taxonomic units. Forficula auricularia is a complex of at least four species: the morphologically diagnosable Forficula aeolica González-Miguéns & García-París sp. nov., and the cryptic taxa: Forficula mediterranea González-Miguéns & García-París sp. nov., Forficula dentataFabricius, 1775stat. nov. and Forficula auriculariaLinnaeus, 1758s.s. We also provide new synonymy for F. dentata.
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Affiliation(s)
- Rubén González-Miguéns
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
- Real Jardín Botánico (RJB-CSIC). Plaza de Murillo. Madrid, Spain
| | - Eva Muñoz-Nozal
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
| | - Yolanda Jiménez-Ruiz
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
| | - Paloma Mas-Peinado
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global CIBC-UAM, Facultad de Ciencias, Universidad Autónoma de Madrid, c/Darwin, Madrid, Spain
| | - Hamid R Ghanavi
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
- Department of Biology, Lund University, Lund, Sweden
| | - Mario García-París
- Museo Nacional de Ciencias Naturales (MNCN-CSIC). Calle José Gutiérrez Abascal. Madrid, Spain
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Martín-Rodríguez I, Vargas P, Ojeda F, Fernández-Mazuecos M. An enigmatic carnivorous plant: ancient divergence of Drosophyllaceae but recent differentiation of Drosophyllum lusitanicum across the Strait of Gibraltar. SYST BIODIVERS 2020. [DOI: 10.1080/14772000.2020.1771467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Irene Martín-Rodríguez
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, E-11510, Spain
- Departamento de Biología, Geología, Física y Química Inorgánica, Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, Calle Tulipán s/n, Móstoles, E-28933, Spain
| | - Pablo Vargas
- Departamento de Biodiversidad y Conservación, Real Jardín Botánico (RJB-CSIC), Plaza de Murillo 2, Madrid, E-28014, Spain
| | - Fernando Ojeda
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, E-11510, Spain
| | - Mario Fernández-Mazuecos
- Departamento de Biodiversidad y Conservación, Real Jardín Botánico (RJB-CSIC), Plaza de Murillo 2, Madrid, E-28014, Spain
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Nieto Feliner G, Rosato M, Alegre G, San Segundo P, Rosselló JA, Garnatje T, Garcia S. Dissimilar molecular and morphological patterns in an introgressed peripheral population of a sand dune species (Armeria pungens, Plumbaginaceae). PLANT BIOLOGY (STUTTGART, GERMANY) 2019; 21:1072-1082. [PMID: 31349366 DOI: 10.1111/plb.13035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/23/2019] [Indexed: 05/26/2023]
Abstract
Introgression is a poorly understood evolutionary outcome of hybridisation because it may remain largely undetected whenever it involves the transfer of small parts of the genome from one species to another. Aiming to understand the early stages of this process, a putative case from the southernmost border of the Armeria pungens range from its congener A. macrophylla is revisited following the discovery of a subpopulation that does not show phenotypic signs of introgression and resembles typical A. pungens. We analysed morphometrics, nuclear ribosomal DNA ITS and plastid DNA (trnL-trnF) sequences, genome size, 45S and 5S rDNA loci-FISH data and nrDNA IGS sequences. Within the study site, most individuals match morphologies of either of the two hybridising species, particularly the new subpopulation, with intermediate phenotypes being scarce. This pattern does not fully fit molecular evidence revealing two ITS ribotypes co-occurring intragenomically in most plants from the study site and one single plastid haplotype. Genome size and structural features of the IGS sequences both indicate that A. pungens from the study site is genetically more similar to its sympatric congener than to the remainder of its conspecifics. Introgression of A. macrophylla into A. pungens and plastid capture explain all the evidence analysed. However, important features to understand the origin and fate of the introgressed population, such as the degree and direction of introgression, which are important for understanding early stages of hybridisation in plants with low reproductive barriers, should be addressed with new data.
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Affiliation(s)
| | - M Rosato
- Jardín Botánico, ICBIBE-Unidad Asociada CSIC, Universidad de Valencia, Valencia, Spain
| | - G Alegre
- Institut Botànic de Barcelona (IBB-CSIC-ICUB), Barcelona, Catalonia, Spain
| | | | - J A Rosselló
- Jardín Botánico, ICBIBE-Unidad Asociada CSIC, Universidad de Valencia, Valencia, Spain
| | - T Garnatje
- Institut Botànic de Barcelona (IBB-CSIC-ICUB), Barcelona, Catalonia, Spain
| | - S Garcia
- Institut Botànic de Barcelona (IBB-CSIC-ICUB), Barcelona, Catalonia, Spain
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Moo-Llanes DA, Pech-May A, Ibarra-Cerdeña CN, Rebollar-Téllez EA, Ramsey JM. Inferring distributional shifts of epidemiologically important North and Central American sandflies from Pleistocene to future scenarios. MEDICAL AND VETERINARY ENTOMOLOGY 2019; 33:31-43. [PMID: 30039583 DOI: 10.1111/mve.12326] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 05/29/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
Nine sandfly species (Diptera: Psychodidae) are suspected or proven vectors of Leishmania spp. in the North and Central America region. The ecological niches for these nine species were modelled in three time periods and the overlaps for all time periods of the geographic predictions (G space), and of ecological dimensions using pairwise comparisons of equivalent niches (E space), were calculated. Two Nearctic, six Neotropical and one species in both bioregions occupied a reduced number of distribution areas. The ecological niche projections for most sandfly species other than Lutzomyia shannoni and Lutzomyia ovallesi have not expanded significantly since the Pleistocene. Only three species increase significantly to 2050, whereas all others remain stable. Lutzomyia longipalpis shared a similar ecological niche with more species than any other, although both L. longipalpis and Lutzomyia olmeca olmeca had conserved distributions over time. Climate change, at both regional and local levels, will play a significant role in the temporal and spatial distributions of sandfly species.
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Affiliation(s)
- D A Moo-Llanes
- Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Federal District, Mexico
| | - A Pech-May
- Instituto Nacional de Medicina Tropical, Ministerio de Salud de la Nación, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Iguazú, Misiones, Argentina
| | - C N Ibarra-Cerdeña
- Departamento de Ecología Humana, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Unidad Mérida, Mérida, Yucatán, Mexico
| | - E A Rebollar-Téllez
- Facultad de Ciencias Biológicas, Zoología de Invertebrados, Universidad Autónoma de Nuevo León, San Nicolás de los Garzas, Nuevo León, Mexico
| | - J M Ramsey
- Centro Regional de Investigación en Salud Pública (CRISP), Instituto Nacional de Salud Pública, Tapachula, Chiapas, Mexico
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Naeem M, Yuan X, Huang J, An J. Habitat suitability for the invasion of Bombus terrestris in East Asian countries: A case study of spatial overlap with local Chinese bumblebees. Sci Rep 2018; 8:11035. [PMID: 30038323 PMCID: PMC6056460 DOI: 10.1038/s41598-018-29414-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 07/11/2018] [Indexed: 12/03/2022] Open
Abstract
Invasive species such as Bombus terrestris represent a severe threat that can result in the decline of local biodiversity. We examined the habitat suitability for B. terrestris invasion in East Asian countries and the risk of habitat overlap with 24 bumblebee species from different groups in China. All East Asian countries were predicted to be susceptible to invasion by B. terrestris, with the highest habitat suitability occurring in China followed by Japan, North Korea, South Korea and Mongolia. Within China, which is a global biodiversity hotspot for bumblebees, three different regions, north-west, central to south-east and north-east, were predicted as being highly suitable for invasion. In China, the group of species closely related to B. terrestris showed higher sensitivity (89%) to habitat overlap with B. terrestris than did the group of non-closely related species (73%). The risk of overlap for the three major regional bumblebees within China decreased in the order southern region, northern region and Tibetan Plateau region. Due to the sensitivity of habitat suitability and overlap, the use of the introduced European bumblebee B. terrestris for pollination services should be discouraged in regions with overlapping habitats in China, and management strategies should be implemented to conserve the vulnerable bumblebees in all East Asian countries.
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Affiliation(s)
- Muhammad Naeem
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100093, China
| | - Xiaolong Yuan
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100093, China
| | - Jiaxing Huang
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100093, China.
| | - Jiandong An
- Key Laboratory for Insect-Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100093, China.
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Lecheta MC, Corrêa RC, Moura MO. Climate Shapes the Geographic Distribution of the Blowfly Sarconesia chlorogaster (Diptera: Calliphoridae): An Environmental Niche Modeling Approach. ENVIRONMENTAL ENTOMOLOGY 2017; 46:1051-1059. [PMID: 28981671 DOI: 10.1093/ee/nvx124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Indexed: 06/07/2023]
Abstract
For all species, abiotic factors directly affect performance, survival and reproduction, and consequently, their geographic distribution. Species distribution models (SDMs) are important tools to predict the influence of abiotic factors in species distributions and has been more applied over the years. However, these models can be built under different algorithms and using different methods to select environmental predictors, which can lead to different results. Five different algorithms and two sets of environmental predictors were compared to predict the geographic distribution of the blowfly Sarconesia chlorogaster (Wiedemann) (Diptera: Calliphoridae). This species has several occurrence points and a considerable amount of biological data available, which makes S. chlorogaster a good model system to compare environmental predictors. Two sets of environmental predictors (mainly derived from temperature and humidity) were built, and the set based on the influence of abiotic variables on the ecophysiology of S. chlorogaster showed better results than the principal component analysis (PCA) approach using 19 climatic variables. We also employed five modeling algorithms-Envelope Score, Mahalanobis Distance, GARP, Support Vector Machines, and Maxent-and the latter two showed the best performances. The results indicate that temperature is the main factor shaping geographic distribution of S. chlorogaster through its effect on fitness. Furthermore, we showed that this species is mainly distributed in south, southeastern, and some northwestern and southwestern sites of South America. In addition, our results also predicted suitable areas in Ecuador and Colombia, countries without previous records.
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Affiliation(s)
- Melise Cristine Lecheta
- Departamento de Zoologia, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, s/n, Caixa Postal 19020, Curitiba, PR 81531-980, Brazil
| | - Rodrigo César Corrêa
- F.L.I.E.S Facility, Department of Entomology, Texas A&M University, College Station, 370 Olsen Blvd, TX 77843
| | - Mauricio Osvaldo Moura
- Departamento de Zoologia, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, s/n, Caixa Postal 19020, Curitiba, PR 81531-980, Brazil
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Marques I, Draper D, López-Herranz ML, Garnatje T, Segarra-Moragues JG, Catalán P. Past climate changes facilitated homoploid speciation in three mountain spiny fescues (Festuca, Poaceae). Sci Rep 2016; 6:36283. [PMID: 27808118 PMCID: PMC5093761 DOI: 10.1038/srep36283] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 10/03/2016] [Indexed: 11/25/2022] Open
Abstract
Apart from the overwhelming cases of allopolyploidization, the impact of speciation through homoploid hybridization is becoming more relevant than previously thought. Much less is known, however, about the impact of climate changes as a driven factor of speciation. To investigate these issues, we selected Festuca picoeuropeana, an hypothetical natural hybrid between the diploid species F. eskia and F. gautieri that occurs in two different mountain ranges (Cantabrian Mountains and Pyrenees) separated by more than 400 km. To unravel the outcomes of this mode of speciation and the impact of climate during speciation we used a multidisciplinary approach combining genome size and chromosome counts, data from an extensive nuclear genotypic analysis, plastid sequences and ecological niche models (ENM). Our results show that the same homoploid hybrid was originated independently in the two mountain ranges, being currently isolated from both parents and producing viable seeds. Parental species had the opportunity to contact as early as 21000 years ago although niche divergence occurs nowadays as result of a climate-driven shift. A high degree of niche divergence was observed between the hybrid and its parents and no recent introgression or backcrossed hybrids were detected, supporting the current presence of reproductive isolation barriers between these species.
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Affiliation(s)
- I Marques
- Departamento de Ciencias Agrarias y del Medio Natural, Escuela Politécnica Superior de Huesca, Universidad de Zaragoza, C/Carretera de Cuarte Km 1, E22071 Huesca, Spain
| | - D Draper
- Centro de Ecologia, Evolução e Alterações Ambientais (CE3C - Centre for Ecology, Evolution and Environmental Changes), C2, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - M L López-Herranz
- Departamento de Ciencias Agrarias y del Medio Natural, Escuela Politécnica Superior de Huesca, Universidad de Zaragoza, C/Carretera de Cuarte Km 1, E22071 Huesca, Spain
| | - T Garnatje
- Institut Botànic de Barcelona (IBB-CSIC-ICUB), Passeig del Migdia s/n, 08038 Barcelona, Spain
| | - J G Segarra-Moragues
- Departamento de Biología Vegetal, Facultad de Ciencias Biológicas, Universitat de València, Avda. Dr. Moliner, 50, E-46100, Burjassot, Spain
| | - P Catalán
- Departamento de Ciencias Agrarias y del Medio Natural, Escuela Politécnica Superior de Huesca, Universidad de Zaragoza, C/Carretera de Cuarte Km 1, E22071 Huesca, Spain.,Department of Botany, Institute of Biology, Tomsk State University, Lenin Av. 36, 634050 Tomsk, Russia
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Hardion L, Dumas PJ, Abdel-Samad F, Bou Dagher Kharrat M, Surina B, Affre L, Médail F, Bacchetta G, Baumel A. Geographical isolation caused the diversification of the Mediterranean thorny cushion-like Astragalus L. sect. Tragacantha DC. (Fabaceae). Mol Phylogenet Evol 2016; 97:187-195. [PMID: 26804816 DOI: 10.1016/j.ympev.2016.01.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 01/05/2016] [Accepted: 01/11/2016] [Indexed: 10/22/2022]
Abstract
Understanding the origin and evolution of Mediterranean vascular flora within the long-term context of climate change requires a continuous study of historical biogeography supported by molecular phylogenetic approaches. Here we provide new insights into the fascinating but often overlooked diversification of Mediterranean xerophytic plants. Growing in some of the most stressing Mediterranean environments, i.e. coastal and mountainous opened habitats, the circum-Mediterranean Astragalus L. sect. Tragacantha DC. (Fabaceae) gathers several thorny cushion-like taxa. These have been the subjects of recent taxonomical studies, but they have not yet been investigated within a comprehensive molecular framework. Bayesian phylogenetics applied to rDNA ITS sequences reveal that the diversification of A. sect. Tragacantha has roots dating back to the Pliocene, and the same data also indicate an eastern-western split giving rise to the five main lineages that exist today. In addition, AFLP fingerprinting supports an old east-west pattern of vicariance that completely rules out the possibility of a recent eastern origin for western taxa. The observed network of genetic relationships implies that contrary to what is widely claimed in the taxonomic literature, it is range fragmentation, as opposed to a coastal-to-mountain ecological shift, that is likely the main driver of diversification.
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Affiliation(s)
- Laurent Hardion
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France; Laboratoire Image Ville Environnement (LIVE), Université de Strasbourg, CNRS, Strasbourg, France.
| | - Pierre-Jean Dumas
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France
| | - Farah Abdel-Samad
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France; Laboratoire Caractérisation Génomique des Plantes, Faculté des Sciences, Université Saint-Joseph, Mar Roukoz, Mkalles, Lebanon
| | - Magda Bou Dagher Kharrat
- Laboratoire Caractérisation Génomique des Plantes, Faculté des Sciences, Université Saint-Joseph, Mar Roukoz, Mkalles, Lebanon
| | - Bostjan Surina
- Natural History Museum Rijeka, Lorenzov prolaz 1, 51000 Rijeka, Croatia; University of Primorska, Faculty of Mathematics, Natural Sciences and Information Technologies, Glagoljaška 8, SI-6000 Koper, Slovenia
| | - Laurence Affre
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France
| | - Frédéric Médail
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France
| | - Gianluigi Bacchetta
- Centro Conservazione Biodiversità, Dipartimento di Scienze della Vita e dell'Ambiente, Università degli Studi di Cagliari, Cagliari, Italy
| | - Alex Baumel
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Aix Marseille Université, CNRS, IRD, Avignon Université, Marseille, France
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Distributional modeling of Mantophasmatodea (Insecta: Notoptera): a preliminary application and the need for future sampling. ORG DIVERS EVOL 2015. [DOI: 10.1007/s13127-015-0250-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Fagundes CK, Vogt RC, De Marco Júnior P. Testing the efficiency of protected areas in the Amazon for conserving freshwater turtles. DIVERS DISTRIB 2015. [DOI: 10.1111/ddi.12396] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Camila K. Fagundes
- Wildlife Conservation Society, Brazil Program; Av. Rodrigo Octavio, 6200 Setor Sul, Bloco H 69077-000 Manaus AM Brazil
| | - Richard C. Vogt
- Departamento de Biologia Aquática, Coordenação de Biodiversidade; Instituto Nacional de Pesquisas da Amazônia (INPA); Av. André Araújo 2936 - Petrópolis, CP 2223 69067-375 Manaus AM Brazil
| | - Paulo De Marco Júnior
- Laboratório de Teoria, Metacomunidades e Ecologia da Paisagem, ICB 5; Universidade Federal de Goiás; CP 131 74.001-970 Goiânia GO Brazil
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Cardoso DC, Cristiano MP, Tavares MG, Schubart CD, Heinze J. Phylogeography of the sand dune ant Mycetophylax simplex along the Brazilian Atlantic Forest coast: remarkably low mtDNA diversity and shallow population structure. BMC Evol Biol 2015; 15:106. [PMID: 26058480 PMCID: PMC4460702 DOI: 10.1186/s12862-015-0383-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 05/20/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND During past glacial periods, many species of forest-dwelling animals experienced range contractions. In contrast, species living outside such moist habitats appear to have reacted to Quaternary changes in different ways. The Atlantic Forest represents an excellent opportunity to test phylogeographic hypotheses, because it has a wide range of vegetation types, including unforested habitats covered predominantly by herbaceous and shrubby plants, which are strongly influenced by the harsh environment with strong wind and high insolation. Here, we investigated the distribution of genetic diversity in the endemic sand dune ant Mycetophylax simplex across its known range along the Brazilian coast, with the aim of contributing to the understanding of alternative phylogeographic patterns. We used partial sequences of the mitochondrial gene cytochrome oxidase I and nuclear gene wingless from 108 specimens and 51 specimens, respectively, to assess the phylogeography and demographic history of this species. To achieve this we performed different methods of phylogenetic and standard population genetic analyses. RESULTS The observed genetic diversity distribution and historical demographic profile suggests that the history of M. simplex does not match the scenario suggested for other Atlantic Forest species. Instead, it underwent demographic changes and range expansions during glacial periods. Our results show that M. simplex presents a shallow phylogeographic structure with isolation by distance among the studied populations, living in an almost panmictic population. Our coalescence approach indicates that the species maintained a stable population size until roughly 75,000 years ago, when it underwent a gradual demographic expansion that were coincident with the low sea-level during the Quaternary. Such demographic events were likely triggered by the expansion of the shorelines during the lowering of the sea level. CONCLUSIONS Our data suggest that over evolutionary time M. simplex did not undergo dramatic range fragmentation, but rather it likely persisted in largely interconnected populations. Furthermore, we add an important framework about how both glacial and interglacial events could positively affect the distribution and diversification of species. The growing number of contrasting phylogeographic patterns within and among species and regions have shown that Quaternary events influenced the distribution of species in more ways than first supposed.
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Affiliation(s)
- Danon Clemes Cardoso
- Present address: Departamento de Genética, Universidade Federal do Paraná, Setor de Ciências Biológicas, Rua Francisco H. dos Santos, s/n°, Jardim das Américas, Curitiba, Paraná, 81530-000, Brazil. .,Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, sn, Viçosa, Minas Gerais, 36570-000, Brazil. .,Zoology/Evolutionary Biology, Universität Regensburg, Universitätstrasse 31, D-93040, Regensburg, Germany.
| | - Maykon Passos Cristiano
- Zoology/Evolutionary Biology, Universität Regensburg, Universitätstrasse 31, D-93040, Regensburg, Germany. .,Departamento de Biodiversidade, Evolução e Meio Ambiente, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, 35400-000, Brazil.
| | - Mara Garcia Tavares
- Present address: Departamento de Genética, Universidade Federal do Paraná, Setor de Ciências Biológicas, Rua Francisco H. dos Santos, s/n°, Jardim das Américas, Curitiba, Paraná, 81530-000, Brazil.
| | - Christoph D Schubart
- Zoology/Evolutionary Biology, Universität Regensburg, Universitätstrasse 31, D-93040, Regensburg, Germany.
| | - Jürgen Heinze
- Zoology/Evolutionary Biology, Universität Regensburg, Universitätstrasse 31, D-93040, Regensburg, Germany.
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Silva DP, Vilela B, De Marco P, Nemésio A. Using ecological niche models and niche analyses to understand speciation patterns: the case of sister neotropical orchid bees. PLoS One 2014; 9:e113246. [PMID: 25422941 PMCID: PMC4244149 DOI: 10.1371/journal.pone.0113246] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 10/25/2014] [Indexed: 12/04/2022] Open
Abstract
The role of past connections between the two major South American forested biomes on current species distribution has been recognized a long time ago. Climatic oscillations that further separated these biomes have promoted parapatric speciation, in which many species had their continuous distribution split, giving rise to different but related species (i.e., different potential distributions and realized niche features). The distribution of many sister species of orchid bees follow this pattern. Here, using ecological niche models and niche analyses, we (1) tested the role of ecological niche differentiation on the divergence between sister orchid-bees (genera Eulaema and Eufriesea) from the Amazon and Atlantic forests, and (2) highlighted interesting areas for new surveys. Amazonian species occupied different realized niches than their Atlantic sister species. Conversely, species of sympatric but distantly related Eulaema bees occupied similar realized niches. Amazonian species had a wide potential distribution in South America, whereas Atlantic Forest species were more limited to the eastern coast of the continent. Additionally, we identified several areas in need of future surveys. Our results show that the realized niche of Atlantic-Amazonian sister species of orchid bees, which have been previously treated as allopatric populations of three species, had limited niche overlap and similarity. These findings agree with their current taxonomy, which treats each of those populations as distinct valid species.
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Affiliation(s)
- Daniel P. Silva
- Programa de Pós-Graduação em Ecologia e Evolução, Departamento de Ecologia, ICB, Universidade Federal de Goiás, Rodovia Goiânia-Nerópolis Campus II, Setor Itatiaia, Goiânia, Brazil
| | - Bruno Vilela
- Programa de Pós-Graduação em Ecologia e Evolução, Departamento de Ecologia, ICB, Universidade Federal de Goiás, Rodovia Goiânia-Nerópolis Campus II, Setor Itatiaia, Goiânia, Brazil
| | - Paulo De Marco
- Theory, Metapopulation, and Landscape Lab, Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás Campus II, Goiânia, Brazil
| | - André Nemésio
- Instituto de Biologia, Universidade Federal de Uberlândia – UFU, Rua Ceará, Campus Umuarama, Uberlândia, Brazil
- * E-mail:
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Wang Z, Kang M, Liu H, Gao J, Zhang Z, Li Y, Wu R, Pang X. High-level genetic diversity and complex population structure of Siberian apricot (Prunus sibirica L.) in China as revealed by nuclear SSR markers. PLoS One 2014; 9:e87381. [PMID: 24516551 PMCID: PMC3917850 DOI: 10.1371/journal.pone.0087381] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 12/20/2013] [Indexed: 12/24/2022] Open
Abstract
Siberian apricot (Prunus sibirica L.), an ecologically and economically important tree species with a high degree of tolerance to a variety of extreme environmental conditions, is widely distributed across the mountains of northeastern and northern China, eastern and southeastern regions of Mongolia, Eastern Siberia, and the Maritime Territory of Russia. However, few studies have examined the genetic diversity and population structure of this species. Using 31 nuclear microsatellites, we investigated the level of genetic diversity and population structure of Siberian apricot sampled from 22 populations across China. The number of alleles per locus ranged from 5 to 33, with an average of 19.323 alleles. The observed heterozygosity and expected heterozygosity ranged from 0.037 to 0.874 and 0.040 to 0.924 with average values of 0.639 and 0.774, respectively. A STRUCTURE-based analysis clustered all of the populations into four genetic clusters. Significant genetic differentiation was observed between all population pairs. A hierarchical analysis of molecular variance attributed about 94% of the variation to within populations. No significant difference was detected between the wild and semi-wild groups, indicating that recent cultivation practices have had little impact on the genetic diversity of Siberian apricot. The Mantel test showed that the genetic distance among the populations was not significantly correlated with geographic distance (r = 0.4651, p = 0.9940). Our study represents the most comprehensive investigation of the genetic diversity and population structure of Siberian apricot in China to date, and it provides valuable information for the collection of genetic resources for the breeding of Siberian apricot and related species.
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Affiliation(s)
- Zhe Wang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Ming Kang
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Huabo Liu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Jiao Gao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Zhengdong Zhang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Yingyue Li
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Rongling Wu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Xiaoming Pang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, Center for Computational Biology, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
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Seeking the flowers for the bees: Integrating biotic interactions into niche models to assess the distribution of the exotic bee species Lithurgus huberi in South America. Ecol Modell 2014. [DOI: 10.1016/j.ecolmodel.2013.11.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Booth TH, Nix HA, Busby JR, Hutchinson MF. bioclim: the first species distribution modelling package, its early applications and relevance to most currentMaxEntstudies. DIVERS DISTRIB 2013. [DOI: 10.1111/ddi.12144] [Citation(s) in RCA: 438] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Trevor H. Booth
- CSIRO Ecosystem Sciences and CSIRO Climate Adaptation Flagship; GPO Box 1700 Canberra ACT 2601 Australia
| | - Henry A. Nix
- Climate Change Institute; College of Medicine, Biology and Environment; Australian National University; Canberra ACT 2600 Australia
| | - John R. Busby
- CSIRO Plant Industry; Centre for Australian National Biodiversity Research; GPO Box 1600 Canberra ACT 2601 Australia
| | - Michael F. Hutchinson
- Fenner School of Environment and Society; Australian National University; Canberra ACT 0200 Australia
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García-Fernández A, Iriondo JM, Escudero A, Aguilar JF, Feliner GN. Genetic patterns of habitat fragmentation and past climate-change effects in the Mediterranean high-mountain plant Armeria caespitosa (Plumbaginaceae). AMERICAN JOURNAL OF BOTANY 2013; 100:1641-1650. [PMID: 23857736 DOI: 10.3732/ajb.1200653] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PREMISE OF THE STUDY Mountain plants are among the species most vulnerable to global warming, because of their isolation, narrow geographic distribution, and limited geographic range shifts. Stochastic and selective processes can act on the genome, modulating genetic structure and diversity. Fragmentation and historical processes also have a great influence on current genetic patterns, but the spatial and temporal contexts of these processes are poorly known. We aimed to evaluate the microevolutionary processes that may have taken place in Mediterranean high-mountain plants in response to changing historical environmental conditions. METHODS Genetic structure, diversity, and loci under selection were analyzed using AFLP markers in 17 populations distributed over the whole geographic range of Armeria caespitosa, an endemic plant that inhabits isolated mountains (Sierra de Guadarrama, Spain). Differences in altitude, geographic location, and climate conditions were considered in the analyses, because they may play an important role in selective and stochastic processes. KEY RESULTS Bayesian clustering approaches identified nine genetic groups, although some discrepancies in assignment were found between alternative analyses. Spatially explicit analyses showed a weak relationship between genetic parameters and spatial or environmental distances. However, a large proportion of outlier loci were detected, and some outliers were related to environmental variables. CONCLUSIONS A. caespitosa populations exhibit spatial patterns of genetic structure that cannot be explained by the isolation-by-distance model. Shifts along the altitude gradient in response to Pleistocene climatic oscillations and environmentally mediated selective forces might explain the resulting structure and genetic diversity values found.
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Garnatje T, Pérez-Collazos E, Pellicer J, Catalán P. Balearic insular isolation and large continental spread framed the phylogeography of the western Mediterranean Cheirolophus intybaceus s.l. (Asteraceae). PLANT BIOLOGY (STUTTGART, GERMANY) 2013; 15:166-75. [PMID: 22759527 DOI: 10.1111/j.1438-8677.2012.00632.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Recent Quaternary geological and climate events have shaped the evolutionary histories of plant species in the Mediterranean basin, one of the most important hotspots of biodiversity. Genetic analyses of the western Mediterranean Cheirolophus intybaceus s.l. (Asteraceae) based on AFLP were conducted to establish the relationships between its close species and populations, to reconstruct the phylogeography of the group and to analyse potential unidirectional versus bidirectional dispersals between the Ibero-Provençal belt and the Balearic Islands. AFLP data revealed two main genetic groups, one constituted by the Balearic populations and Garraf (NE Iberia) and the other formed by the remaining mainland populations that were further sub-structured into two geographically separated subgroups (SE + E Iberia and NE Iberia + SW France). Genetic diversity and spatial structure analyses suggested a mid-Pleistocene scenario for the origin of C. intybaceus in southern Iberia, followed by dispersal to the north and a single colonisation event of the Balearic archipelago from the near Dianic NE Iberian area. This hypothesis was supported by paleogeographic data, which showed the existence of terrestrial connections between the continent and the islands during the Middle-Late Pleistocene marine regressions, whereas the more recent single back-colonisation of the mainland from Mallorca might be explained by several hypotheses, such as long-distance dispersal mediated by migratory marine birds or sea currents.
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Affiliation(s)
- T Garnatje
- Institut Botànic de Barcelona (IBB-CSIC-ICUB), Barcelona, Catalonia, Spain
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Bhagwat SA, Breman E, Thekaekara T, Thornton TF, Willis KJ. A battle lost? Report on two centuries of invasion and management of Lantana camara L. in Australia, India and South Africa. PLoS One 2012; 7:e32407. [PMID: 22403653 PMCID: PMC3293794 DOI: 10.1371/journal.pone.0032407] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 01/30/2012] [Indexed: 12/02/2022] Open
Abstract
Recent discussion on invasive species has invigorated the debate on strategies to manage these species. Lantana camara L., a shrub native to the American tropics, has become one of the worst weeds in recorded history. In Australia, India and South Africa, Lantana has become very widespread occupying millions of hectares of land. Here, we examine historical records to reconstruct invasion and management of Lantana over two centuries and ask: Can we fight the spread of invasive species or do we need to develop strategies for their adaptive management? We carried out extensive research of historical records constituting over 75% of records on invasion and management of this species in the three countries. The records indicate that governments in Australia, India and South Africa have taken aggressive measures to eradicate Lantana over the last two centuries, but these efforts have been largely unsuccessful. We found that despite control measures, the invasion trajectory of Lantana has continued upwards and that post-war land-use change might have been a possible trigger for this spread. A large majority of studies on invasive species address timescales of less than one year; and even fewer address timescales of >10 years. An understanding of species invasions over long time-scales is of paramount importance. While archival records may give only a partial picture of the spread and management of invasive species, in the absence of any other long-term dataset on the ecology of Lantana, our study provides an important insight into its invasion, spread and management over two centuries and across three continents. While the established paradigm is to expend available resources on attempting to eradicate invasive species, our findings suggest that in the future, conservationists will need to develop strategies for their adaptive management rather than fighting a losing battle.
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Affiliation(s)
- Shonil A Bhagwat
- School of Geography and the Environment, University of Oxford, Oxford, United Kingdom.
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SLOVÁK MAREK, KUČERA JAROMÍR, TURIS PETER, ZOZOMOVÁ-LIHOVÁ JUDITA. Multiple glacial refugia and postglacial colonization routes inferred for a woodland geophyte, Cyclamen purpurascens: patterns concordant with the Pleistocene history of broadleaved and coniferous tree species. Biol J Linn Soc Lond 2012. [DOI: 10.1111/j.1095-8312.2011.01826.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fernández-Mazuecos M, Vargas P. Historical isolation versus recent long-distance connections between Europe and Africa in bifid toadflaxes (Linaria sect. Versicolores). PLoS One 2011; 6:e22234. [PMID: 21779399 PMCID: PMC3136523 DOI: 10.1371/journal.pone.0022234] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 06/17/2011] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Due to its complex, dynamic and well-known paleogeography, the Mediterranean region provides an ideal framework to study the colonization history of plant lineages. The genus Linaria has its diversity centre in the Mediterranean region, both in Europe and Africa. The last land connection between both continental plates occurred during the Messinian Salinity Crisis, in the late Miocene (5.96 to 5.33 Ma). METHODOLOGY/PRINCIPAL FINDINGS We analyzed the colonization history of Linaria sect. Versicolores (bifid toadflaxes), which includes c. 22 species distributed across the Mediterranean, including Europe and Africa. Two cpDNA regions (rpl32-trnL(UAG) and trnK-matK) were sequenced from 66 samples of Linaria. We conducted phylogenetic, dating, biogeographic and phylogeographic analyses to reconstruct colonization patterns in space and time. Four major clades were found: two of them exclusively contain Iberian samples, while the other two include northern African samples together with some European samples. The bifid toadflaxes have been split in African and European clades since the late Miocene, and most lineage and speciation differentiation occurred during the Pliocene and Quaternary. We have strongly inferred four events of post-Messinian colonization following long-distance dispersal from northern Africa to the Iberian Peninsula, Sicily and Greece. CONCLUSIONS/SIGNIFICANCE The current distribution of Linaria sect. Versicolores lineages is explained by both ancient isolation between African and European populations and recent events of long-distance dispersal over sea barriers. This result provides new evidence for the biogeographic complexity of the Mediterranean region.
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Dupin M, Reynaud P, Jarošík V, Baker R, Brunel S, Eyre D, Pergl J, Makowski D. Effects of the training dataset characteristics on the performance of nine species distribution models: application to Diabrotica virgifera virgifera. PLoS One 2011; 6:e20957. [PMID: 21701579 PMCID: PMC3118793 DOI: 10.1371/journal.pone.0020957] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 05/14/2011] [Indexed: 11/19/2022] Open
Abstract
Many distribution models developed to predict the presence/absence of invasive alien species need to be fitted to a training dataset before practical use. The training dataset is characterized by the number of recorded presences/absences and by their geographical locations. The aim of this paper is to study the effect of the training dataset characteristics on model performance and to compare the relative importance of three factors influencing model predictive capability; size of training dataset, stage of the biological invasion, and choice of input variables. Nine models were assessed for their ability to predict the distribution of the western corn rootworm, Diabrotica virgifera virgifera, a major pest of corn in North America that has recently invaded Europe. Twenty-six training datasets of various sizes (from 10 to 428 presence records) corresponding to two different stages of invasion (1955 and 1980) and three sets of input bioclimatic variables (19 variables, six variables selected using information on insect biology, and three linear combinations of 19 variables derived from Principal Component Analysis) were considered. The models were fitted to each training dataset in turn and their performance was assessed using independent data from North America and Europe. The models were ranked according to the area under the Receiver Operating Characteristic curve and the likelihood ratio. Model performance was highly sensitive to the geographical area used for calibration; most of the models performed poorly when fitted to a restricted area corresponding to an early stage of the invasion. Our results also showed that Principal Component Analysis was useful in reducing the number of model input variables for the models that performed poorly with 19 input variables. DOMAIN, Environmental Distance, MAXENT, and Envelope Score were the most accurate models but all the models tested in this study led to a substantial rate of mis-classification.
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Affiliation(s)
- Maxime Dupin
- INRA, UR Zoologie Forestière, Ardon, Orléans, France
- CIRAD, UMR Peuplement Végétaux et Bio agresseurs en Milieu Tropical, Montpellier, France
- Anses, Laboratoire de la Santé des Végétaux, Station d'Angers, Angers, France
| | - Philippe Reynaud
- Anses, Laboratoire de la Santé des Végétaux, Station d'Angers, Angers, France
| | - Vojtěch Jarošík
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
- Institute of Botany ASCR, Průhonice, Czech Republic
| | - Richard Baker
- Food and Environment Research Agency, Sand Hutton, York, United Kingdom
| | | | - Dominic Eyre
- Food and Environment Research Agency, Sand Hutton, York, United Kingdom
| | - Jan Pergl
- Institute of Botany ASCR, Průhonice, Czech Republic
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - David Makowski
- INRA, UMR 211 INRA AgroParisTech, Thiverval-Grignon, France
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Pérez-Collazos E, Sanchez-Gómez P, Jiménez F, Catalán P. The phylogeographical history of the Iberian steppe plant Ferula loscosii (Apiaceae): a test of the abundant-centre hypothesis. Mol Ecol 2011; 18:848-61. [PMID: 19207254 DOI: 10.1111/j.1365-294x.2008.04060.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The geology and climate of the western Mediterranean area were strongly modified during the Late Tertiary and the Quaternary. These geological and climatic events are thought to have induced changes in the population histories of plants in the Iberian Peninsula. However, fine-scale genetic spatial architecture across western Mediterranean steppe plant refugia has rarely been investigated. A population genetic analysis of amplified fragment length polymorphism variation was conducted on present-day, relict populations of Ferula loscosii (Apiaceae). This species exhibits high individual/population numbers in the middle Ebro river valley and, according to the hypothesis of an abundant-centre distribution, these northern populations might represent a long-standing/ancestral distribution centre. However, our results suggest that the decimated southern and central Iberian populations are more variable and structured than the northeastern ones, representing the likely vestiges of an ancestral distribution centre of the species. Phylogeographical analysis suggests that F. loscosii likely originated in southern Spain and then migrated towards the central and northeastern ranges, further supporting a Late Miocene southern-bound Mediterranean migratory way for its oriental steppe ancestors. In addition, different glacial-induced conditions affected the southern and northern steppe Iberian refugia during the Quaternary. The contrasting genetic homogeneity of the Ebro valley range populations compared to the southern Iberian ones possibly reflects more severe bottlenecks and subsequent genetic drift experienced by populations of the northern Iberia refugium during the Pleistocene, followed by successful postglacial expansion from only a few founder plants.
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Affiliation(s)
- E Pérez-Collazos
- Departamento de Agricultura y Economía Agraria, Escuela Politécnica Superior de Huesca, Universidad de Zaragoza, C/Carretera de Cuarte s/n E-22071 Huesca, Spain.
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Fernández-Mazuecos M, Vargas P. Genetically depauperate in the continent but rich in oceanic islands: Cistus monspeliensis (Cistaceae) in the Canary Islands. PLoS One 2011; 6:e17172. [PMID: 21347265 PMCID: PMC3038934 DOI: 10.1371/journal.pone.0017172] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 01/24/2011] [Indexed: 11/18/2022] Open
Abstract
Background Population genetic theory holds that oceanic island populations are expected to have lower levels of genetic variation than their mainland counterparts, due to founder effect after island colonization from the continent. Cistus monspeliensis (Cistaceae) is distributed in both the Canary Islands and the Mediterranean region. Numerous phylogenetic results obtained in the last years allow performing further phylogeographic analyses in Cistus. Methodology/Principal Findings We analyzed sequences from multiple plastid DNA regions in 47 populations of Cistus monspeliensis from the Canary Islands (21 populations) and the Mediterranean basin (26 populations). The time-calibrated phylogeny and phylogeographic analyses yielded the following results: (1) a single, ancestral haplotype is distributed across the Mediterranean, whereas 10 haplotypes in the Canary Islands; (2) four haplotype lineages are present in the Canarian Islands; (3) multiple colonization events across the archipelago are inferred; (4) the earliest split of intraspecific lineages occurred in the Early to Middle Pleistocene (<930,000 years BP). Conclusions/Significance The contrasting pattern of cpDNA variation is best explained by genetic bottlenecks in the Mediterranean during Quaternary glaciations, while the Canarian archipelago acted as a refugium of high levels of genetic diversity. Active colonization across the Canarian islands is supported not only by the distribution of C. monspeliensis in five of the seven islands, but also by our phylogeographic reconstruction in which unrelated haplotypes are present on the same island. Widespread distribution of thermophilous habitats on every island, as those found throughout the Mediterranean, has likely been responsible for the successful colonization of C. monspeliensis, despite the absence of a long-distance dispersal mechanism. This is the first example of a plant species with higher genetic variation among oceanic island populations than among those of the continent.
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Jacobs MMJ, Smulders MJM, van den Berg RG, Vosman B. What's in a name; genetic structure in Solanum section Petota studied using population-genetic tools. BMC Evol Biol 2011; 11:42. [PMID: 21310063 PMCID: PMC3045909 DOI: 10.1186/1471-2148-11-42] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 02/10/2011] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The taxonomy and systematic relationships among species of Solanum section Petota are complicated and the section seems overclassified. Many of the presumed (sub)species from South America are very similar and they are able to exchange genetic material. We applied a population genetic approach to evaluate support for subgroups within this material, using AFLP data. Our approach is based on the following assumptions: (i) accessions that may exchange genetic material can be analyzed as if they are part of one gene pool, and (ii) genetic differentiation among species is expected to be higher than within species. RESULTS A dataset of 566 South-American accessions (encompassing 89 species and subspecies) was analyzed in two steps. First, with the program STRUCTURE 2.2 in an 'unsupervised' procedure, individual accessions were assigned to inferred clusters based on genetic similarity. The results showed that the South American members of section Petota could be arranged in 16 clusters of various size and composition. Next, the accessions within the clusters were grouped by maximizing the partitioning of genetic diversity among subgroups (i.e., maximizing Fst values) for all available individuals of the accessions (2767 genotypes). This two-step approach produced an optimal partitioning into 44 groups.Some of the species clustered as genetically distinct groups, either on their own, or combined with one or more other species. However, accessions of other species were distributed over more than one cluster, and did not form genetically distinct units. CONCLUSIONS We could not find any support for 43 species (almost half of our dataset). For 28 species some level of support could be found varying from good to weak. For 18 species no conclusions could be drawn as the number of accessions included in our dataset was too low. These molecular data should be combined with data from morphological surveys, with geographical distribution data, and with information from crossing experiments to identify natural units at the species level. However, the data do indicate which taxa or combinations of taxa are clearly supported by a distinct set of molecular marker data, leaving other taxa unsupported. Therefore, the approach taken provides a general method to evaluate the taxonomic system in any species complex for which molecular data are available.
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Affiliation(s)
- Mirjam M J Jacobs
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
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Phylogeny and genetic structure of Erophaca (Leguminosae), a East–West Mediterranean disjunct genus from the Tertiary. Mol Phylogenet Evol 2010; 56:441-50. [DOI: 10.1016/j.ympev.2010.02.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 02/03/2010] [Accepted: 02/19/2010] [Indexed: 11/18/2022]
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Piñeiro R, Widmer A, Aguilar JF, Nieto Feliner G. Introgression in peripheral populations and colonization shape the genetic structure of the coastal shrub Armeria pungens. Heredity (Edinb) 2010; 106:228-40. [PMID: 20424642 DOI: 10.1038/hdy.2010.46] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The coastal shrub Armeria pungens has a disjunct Atlantic-Mediterranean distribution. The historic range expansion underlying this distribution was investigated using the nuclear internal transcribed spacer region, three plastid regions (namely trnL-F, trnS-fM and matK) and morphometric data. A highly diverse ancestral lineage was identified in southwest Portugal. More recently, two areas have been colonized: (1) Corsica and Sardinia, where disjunct Mediterranean populations have been established as a result of the long-distance dispersal of Portuguese genotypes, and (2) the southern part of the Atlantic range, Gulf of Cadiz, where a distinct lineage showing no genetic differentiation among populations occurs. Genetic consequences of colonization seem to have been more severe in the Gulf of Cadiz than in Corsica-Sardinia. Although significant genetic divergence is associated with low plastid diversity in the Gulf of Cadiz, in Corsica-Sardinia, the loss of plastid haplotypes was not accompanied by divergence from disjunct Portuguese source populations. In addition, in its northernmost and southernmost populations, A. pungens exhibited evidence for ancient or ongoing introgression from sympatric congeners. Introgression might have created novel genotypes able to expand beyond the latitudinal margins of the species or, alternatively, these genotypes may be the result of surfing of alleles from other species in demographic equilibrium into peripheral populations of A. pungens. Our results highlight the evolutionary significance of genetic drift following the colonization of new areas and the key role of introgression in range expansion.
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Affiliation(s)
- R Piñeiro
- Real Jardín Botánico, CSIC, Madrid, Spain.
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Marques I, Feliner GN, Draper Munt D, Martins-Loução MA, Aguilar JF. Unraveling cryptic reticulate relationships and the origin of orphan hybrid disjunct populations in Narcissus. Evolution 2010; 64:2353-68. [PMID: 20199565 DOI: 10.1111/j.1558-5646.2010.00983.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Evolutionary consequences of natural hybridization between species may vary so drastically depending on spatial, genetic, and ecological factors that multiple approaches are required to uncover them. To unravel the evolutionary history of a controversial hybrid (Narcissus x perezlarae), here we use four approaches: DNA sequences from five regions (four organellar, one nuclear), cytological studies (chromosome counts and genome size), crossing experiments, and niche modeling. We conclude that (1) it actually consists of two different hybrid taxa, N.xperezlarae s.s. (N. cavanillesii x N. miniatus) and N.xalentejanus (N. cavanillesii x N. serotinus); (2) both have been formed several times independently, that is, polytopically; (3) N. cavanillesii was the mother progenitor in most hybridization events. We also address the origin of orphan hybrid populations of N.xperezlarae in eastern Spain, hundreds of kilometers away from N. cavanillesii. Although long-distance dispersal of already formed hybrids cannot be completely rejected, extirpation of N. cavanillesii via demographic competition is a more likely explanation. Low-reproductive barriers to fertilization by foreign pollen in N. cavanillesii, molecular footprints of the former presence of this species in the area, active asexual propagation by bulbs in N.xperezlarae, and overlapping ecological niches are consistent with the extirpation scenario.
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Affiliation(s)
- Isabel Marques
- Universidade de Lisboa. Museu Nacional de História Natural, Jardim Botânico, Rua da Escola Politécnica 58. 1280-102 Lisboa, Portugal.
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Escudero M, Vargas P, Arens P, Ouborg NJ, Luceño M. The east-west-north colonization history of the Mediterranean and Europe by the coastal plant Carex extensa (Cyperaceae). Mol Ecol 2009; 19:352-70. [PMID: 20002603 DOI: 10.1111/j.1365-294x.2009.04449.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Coastal plants are ideal models for studying the colonization routes of species because of the simple linear distributions of these species. Carex extensa occurs mainly in salt marshes along the Mediterranean and European coasts. Variation in cpDNA sequences, amplified fragment length polymorphisms (AFLPs) and simple sequence repeats (SSRs) of 24 populations were analysed to reconstruct its colonization history. Phylogenetic relationships indicate that C. extensa together with the South American Carex vixdentata and the southern African Carex ecklonii form a monophyletic group of halophilic species. Analyses of divergence times suggest that early lineage diversification may have occurred between the late Miocene and the late Pliocene (Messinian crisis). Phylogenetic and network analyses of cpDNA variation revealed the monophyly of the species and an ancestral haplotype contained in populations of the eastern Mediterranean. The AFLP and SSR analyses support a pattern of variation compatible with these two lineages. These analyses also show higher levels of genetic diversity and differentiation in the eastern population group, which underwent an east-to-west Mediterranean colonization. Quaternary climatic oscillations appear to have been responsible for the split between these two lineages. Secondary contacts may have taken place in areas near the Ligurian Sea in agreement with the gene flow detected in Corsican populations. The AFLP and SSR data accord with the 'tabula rasa' hypothesis in which a recent and rapid colonization of northern Europe took place from the western Mediterranean after the Last Glacial Maximum. The unbalanced west-east vs. west-north colonization may be as a result of 'high density blocking' effect.
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Affiliation(s)
- M Escudero
- Department of Molecular Biology and Biochemical Engineering, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
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Alvarez N, Thiel-Egenter C, Tribsch A, Holderegger R, Manel S, Schönswetter P, Taberlet P, Brodbeck S, Gaudeul M, Gielly L, Küpfer P, Mansion G, Negrini R, Paun O, Pellecchia M, Rioux D, Schüpfer F, Van Loo M, Winkler M, Gugerli F. History or ecology? Substrate type as a major driver of patial genetic structure in Alpine plants. Ecol Lett 2009; 12:632-40. [PMID: 19392716 DOI: 10.1111/j.1461-0248.2009.01312.x] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nadir Alvarez
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
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Díaz-Pérez A, Sequeira M, Santos-Guerra A, Catalán P. Multiple Colonizations, In Situ Speciation, and Volcanism-Associated Stepping-Stone Dispersals Shaped the Phylogeography of the Macaronesian Red Fescues (Festuca L., Gramineae). Syst Biol 2008; 57:732-49. [DOI: 10.1080/10635150802302450] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Antonio Díaz-Pérez
- Department of Agriculture (Botany), High Polytechnic School of Huesca, University of Zaragoza Ctra. Cuarte km 1, 22071 Huesca, Spain; E-mail: (A.D.-P.); (P.C.)
| | - Miguel Sequeira
- Department of Biology (CEM), Universidade da Madeira Alto da Penteada, 9000 Funchal, Portugal; E-mail:
| | - Arnoldo Santos-Guerra
- Botanic Garden of La Orotava (ICIA) Retama 2, 38400 Puerto de la Cruz, Tenerife, Spain; E-mail:
| | - Pilar Catalán
- Department of Agriculture (Botany), High Polytechnic School of Huesca, University of Zaragoza Ctra. Cuarte km 1, 22071 Huesca, Spain; E-mail: (A.D.-P.); (P.C.)
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Ortiz MA, Tremetsberger K, Terrab A, Stuessy TF, García-Castaño JL, Urtubey E, Baeza CM, Ruas CF, Gibbs PE, Talavera S. Phylogeography of the invasive weed Hypochaeris radicata (Asteraceae): from Moroccan origin to worldwide introduced populations. Mol Ecol 2008; 17:3654-67. [PMID: 18662226 DOI: 10.1111/j.1365-294x.2008.03835.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In an attempt to delineate the area of origin and migratory expansion of the highly successful invasive weedy species Hypochaeris radicata, we analysed amplified fragment length polymorphisms from samples taken from 44 populations. Population sampling focused on the central and western Mediterranean area, but also included sites from Northern Spain, Western and Central Europe, Southeast Asia and South America. The six primer combinations applied to 213 individuals generated a total of 517 fragments of which 513 (99.2%) were polymorphic. The neighbour-joining tree presented five clusters and these divisions were supported by the results of Bayesian analyses: plants in the Moroccan, Betic Sierras (Southern Spain), and central Mediterranean clusters are all heterocarpic. The north and central Spanish, southwestern Sierra Morena, and Central European, Asian and South American cluster contain both heterocarpic (southwestern Sierra Morena) and homocarpic populations (all other populations). The Doñana cluster includes two homocarpic populations. Analyses of fragment parameters indicate that the oldest populations of H. radicata are located in Morocco and that the species expanded from this area in the Late Quaternary via at least three migratory routes, the earliest of which seems to have been to the southwestern Iberian Peninsula, with subsequent colonizations to the central Mediterranean area and the Betic Sierras. Homocarpic populations originated in the southwestern Iberian Peninsula and subsequently spread across north and central Spain, Central Europe and worldwide, where they became a highly successful weed.
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Affiliation(s)
- M A Ortiz
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Apdo-1095, 41080 Sevilla, Spain.
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Terrab A, Schönswetter P, Talavera S, Vela E, Stuessy TF. Range-wide phylogeography of Juniperus thurifera L., a presumptive keystone species of western Mediterranean vegetation during cold stages of the Pleistocene. Mol Phylogenet Evol 2008; 48:94-102. [PMID: 18439840 DOI: 10.1016/j.ympev.2008.03.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Revised: 03/06/2008] [Accepted: 03/11/2008] [Indexed: 10/22/2022]
Abstract
We investigate the range-wide population structure and phylogeography of thuriferous juniper (Juniperus thurifera L.), a species with a highly disjunct distribution in the western Mediterranean. We genotyped a total of 327 individuals from 20 populations using amplified fragment length polymorphisms (AFLP). Different analyses such as principal co-ordinate analysis (PCoA), nonmetric multidimensional scaling of F(ST) distances among populations, unweighted pair group method with arithmetic mean (UPGMA), and Bayesian clustering revealed that the Strait of Gibraltar acted as an efficient barrier against gene flow between the Moroccan and European populations for a very long time, and consequently support that the Moroccan populations should be recognised as a distinct subspecies (J. thurifera L. subsp. africana (Maire) Romo and Boratyńsky). The Algerian population was genetically more closely related to the European than to the Moroccan ones, probably due to dispersal events from Europe to Algeria. With respect to the mainland European populations, our data are not conclusive to reject any of the two following hypotheses: (1) the Iberian Peninsula was subdivided into different gene pools, and was the source for the colonisation of the Pyrenees and the Alps; and (2) the pattern we see today is partly the result of immigration into the Iberian Peninsula, e.g. from the Alps. Finally, the Corsican population was closely related genetically to two northern Iberian populations most probably due to relatively recent long-distance dispersal.
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Affiliation(s)
- Anass Terrab
- Department of Systematic and Evolutionary Botany, Faculty Centre Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria.
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