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      Riqueza, distribución geográfica y conservación de Lycianthes serie Meizonodontae (Capsiceae, Solanaceae) Translated title: Richness, geographic distribution and conservation of Lycianthes series Meizonodontae (Capsiceae, Solanaceae)

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          Abstract

          Resumen: Lycianthes serie Meizonodontae Bitter (Solanaceae) es un grupo monofilético, integrado por 8 especies y 2 variedades. El objetivo del presente trabajo fue analizar la riqueza, distribución y estado de conservación de la serie. Mediante el uso de sistemas de información geográfica (SIG), se evaluó la riqueza por latitud, longitud, altitud, división política, provincias biogeográficas, tipos de vegetación, una cuadrícula de 83 × 83 km y modelos de distribución potencial. También se estimó la distribución geográfica, así como el estado de conservación para cada taxón, de acuerdo con el criterio B2 de la UICN. Lycianthes serie Meizonodontae se distribuye desde el noreste de México hasta el centro de Costa Rica, pero México es su centro de diversificación. La riqueza de especies se concentra en el centro de México, donde converge la Faja Volcánica Transmexicana (FVT) y la Cuenca del río Balsas (CB). Por su área de ocupación (AOO), L. hintonii y L. staburckii están en peligro crítico de extinción (CR), mientras que las demás especies se consideran en preocupación menor (LC). Los modelos de distribución potencial infieren que la riqueza de Lycianthes serie Meizonodontae se localiza a lo largo de la FVT.

          Translated abstract

          Abstract: Lycianthes series Meizonodontae Bitter (Solanaceae) is monophyletic and includes 8 species and 2 varieties. The aim of this paper is to analyze the richness, distribution and conservation status of the series. Using geographic information systems (GIS), we evaluated the richness by latitude, longitude, elevation, political divisions, biogeographic provinces, vegetation types, a 83 × 83 km grid cell and species distribution models. Also, we estimated geographic distribution and conservation status for each taxon, according to criterion B2 of the IUCN. Lycianthes series Meizonodontae distributes from northeast of Mexico to central Costa Rica, with Mexico as its main center of diversification. The species richness concentrates in Central Mexico, where the Transmexican Volcanic Belt and the Balsas Basin converge. Based on their areas of occupancy (AOO), L. hintonii and L. starbuckii are considered as critically endangered (CR), while the rest of the species are least concern (LC). The potential distribution models suggest that the main richness of Lycianthes series Meizonodontae occurs in the Transmexican Volcanic Belt.

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          Checklist of the native vascular plants of Mexico

          Abstract: An updated inventory of the native vascular plants of Mexico records 23,314 species, distributed in 2,854 genera, 297 families, and 73 orders. The flora includes 1,039 species of ferns and lycophytes, 149 gymnosperms, and 22,126 angiosperms. On average, the number of synonyms per species is 1.3 (mode = 1). The number of species places Mexico as the country with the fourth largest floristic richness in the world, although among the non-insular countries, by its number of endemic species (about 50%) is second only surpassed by South Africa. The species distribution among higher taxonomic categories, and the richness and endemism values in the 32 states of Mexico are discussed. This compilation allows us to assess the flora's contribution to the overall Mexican biodiversity.
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            A phylogenetic framework for evolutionary study of the nightshades (Solanaceae): a dated 1000-tip tree

            Background The Solanaceae is a plant family of great economic importance. Despite a wealth of phylogenetic work on individual clades and a deep knowledge of particular cultivated species such as tomato and potato, a robust evolutionary framework with a dated molecular phylogeny for the family is still lacking. Here we investigate molecular divergence times for Solanaceae using a densely-sampled species-level phylogeny. We also review the fossil record of the family to derive robust calibration points, and estimate a chronogram using an uncorrelated relaxed molecular clock. Results Our densely-sampled phylogeny shows strong support for all previously identified clades of Solanaceae and strongly supported relationships between the major clades, particularly within Solanum. The Tomato clade is shown to be sister to section Petota, and the Regmandra clade is the first branching member of the Potato clade. The minimum age estimates for major splits within the family provided here correspond well with results from previous studies, indicating splits between tomato & potato around 8 Million years ago (Ma) with a 95% highest posterior density (HPD) 7–10 Ma, Solanum & Capsicum c. 19 Ma (95% HPD 17–21), and Solanum & Nicotiana c. 24 Ma (95% HPD 23–26). Conclusions Our large time-calibrated phylogeny provides a significant step towards completing a fully sampled species-level phylogeny for Solanaceae, and provides age estimates for the whole family. The chronogram now includes 40% of known species and all but two monotypic genera, and is one of the best sampled angiosperm family phylogenies both in terms of taxon sampling and resolution published thus far. The increased resolution in the chronogram combined with the large increase in species sampling will provide much needed data for the examination of many biological questions using Solanaceae as a model system.
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              Use of Maximum Entropy Modeling in Wildlife Research

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                2018
                : 89
                : 2
                : 516-529
                Affiliations
                [3] Zapopan orgnameUniversidad de Guadalajara orgdiv1Centro Universitario de Ciencias Biológicas y Agropecuarias orgdiv2Laboratorio Nacional de Identificación y Caracterización Vegetal Mexico
                [4] orgnameUniversidad Nacional Autónoma de México orgdiv1Instituto de Biología orgdiv2Departamento de Botánica Mexico
                [1] Zapopan orgnameUniversidad de Guadalajara orgdiv1Centro Universitario de Ciencias Biológicas y Agropecuarias Mexico
                [2] Zapopan orgnameUniversidad de Guadalajara orgdiv1Centro Universitario de Ciencias Biológicas y Agropecuarias orgdiv2Cátedra Conacyt-Universidad de Guadalajara Mexico
                Article
                S1870-34532018000200516
                10.22201/ib.20078706e.2018.2.2340
                98683a9e-2657-4d0b-ad49-f2da829dec02

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 02 June 2017
                : 03 November 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 68, Pages: 14
                Product

                SciELO Mexico


                Risk category,Distribución potencial,Categorías de riesgo,SIG,Faja Volcánica Transmexicana,Potential distribution,GIS,Transmexican Volcanic Belt

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