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  • 1.
    Calvente, Alice
    et al.
    Laboratório de Botânica Sistemática, Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Lagoa Nova, RN, Natal, Brazil.
    da Silva, Ana Paula Alves
    Laboratório de Botânica Sistemática, Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Lagoa Nova, RN, Natal, Brazil.
    Edler, Daniel
    Umeå University, Faculty of Science and Technology, Department of Physics. Gothenburg Global Biodiversity Centre, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
    Carvalho, Fernanda Antunes
    Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Pampulha, MG, Belo Horizonte, Brazil.
    Fantinati, Mariana Ramos
    Departamento de Ciências Biológicas, Universidade Estadual Paulista–câmpus de Assis, Parque Universitário, SP, Assis, Brazil.
    Zizka, Alexander
    Biodiversity of plants, Philipps University Marburg, Marburg, Germany.
    Antonelli, Alexandre
    Gothenburg Global Biodiversity Centre, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden; Royal Botanic Gardens Kew, Richmond, United Kingdom; Department of Biology, University of Oxford, Oxford, United Kingdom.
    Spiny but photogenic: amateur sightings complement herbarium specimens to reveal the bioregions of cacti2023In: American Journal of Botany, ISSN 0002-9122, E-ISSN 1537-2197, Vol. 110, no 10, article id e16235Article in journal (Refereed)
    Abstract [en]

    Premise: Cacti are characteristic elements of the Neotropical flora and of major interest for biogeographic, evolutionary, and ecological studies. We tested global biogeographic boundaries for Neotropical Cactaceae using specimen-based occurrences, coupled with data from visual observations, as a means to tackle the known collection biases in the family.

    Methods: Species richness and record density were assessed for preserved specimens and human observations, and a bioregional scheme tailored to Cactaceae was produced using the interactive web application Infomap Bioregions, based on data from 261,272 point records cleaned through automated and manual steps.

    Results: We found that areas in Mexico and southwestern USA, in eastern Brazil, and along the Andean region have the greatest density of records and the highest species richness. Human observations complement information from preserved specimens substantially, especially along the Andes. We propose 24 cactus bioregions, among which the most species-rich are northern Mexico/southwestern USA, central Mexico, southern central Mexico, Central America, Mexican Pacific coast, central and southern Andes, northwestern Mexico/extreme southwestern USA, southwestern Bolivia, northeastern Brazil, and Mexico/Baja California.

    Conclusions: The bioregionalization proposed shows biogeographic boundaries specific to cacti and can thereby aid further evolutionary, biogeographic, and ecological studies by providing a validated framework for further analyses. This classification builds upon, and is distinctive from, other expert-derived regionalization schemes for other taxa. Our results showcase how observation data, including citizen-science records, can complement traditional specimen-based data for biogeographic research, particularly for taxa with specific specimen collection and preservation challenges and those that are threatened or internationally protected.

  • 2. Helm, Michael
    et al.
    Schmid, Markus
    Technische Universität München, Lehrstuhl für Botanik, Biologikum-Weihenstephan, Am Hochanger 4, D-85350 Freising, Germany.
    Hierl, Georg
    Terneus, Kimberly
    Tan, Li
    Lottspeich, Friedrich
    Kieliszewski, Marcia J.
    Gietl, Christine
    KDEL-tailed cysteine endopeptidases involved in programmed cell death, intercalation of new cells, and dismantling of extensin scaffolds2008In: American Journal of Botany, ISSN 0002-9122, E-ISSN 1537-2197, Vol. 95, no 9, p. 1049-1062Article in journal (Refereed)
  • 3.
    Sun, Jing
    et al.
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Yuan, Junxia
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Wang, Baosheng
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Pan, Jin
    4State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China .
    Zhang, Daming
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Development and characterization of 10 microsatellite loci in paeonia lactiflora (paeoniaceae)2011In: American Journal of Botany, ISSN 0002-9122, E-ISSN 1537-2197, Vol. 98, no 9, p. E242-E243Article in journal (Refereed)
    Abstract [en]

    Premise of the study: Microsatellite primers were developed in Paeonia lactiflora for further population genetic studies.

    Methods and Results: Ten dinucleotide microsatellite markers were developed using an enriched genomic library. They were identified in 58 individuals, and nine markers were also amplified in its cultivars. The number of alleles per locus ranged from three to 11, with a mean of six. The observed and expected heterozygosities ranged from 0.1662 to 0.9140 and from 0.0841 to 0.8157, respectively.

    Conclusions: These microsatellite markers will facilitate further studies on population genetics variation and genetic structure of P. lactiflora.

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