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  • Phylogeny  (34)
  • Binding Sites  (28)
  • American Association for the Advancement of Science (AAAS)  (59)
  • Springer  (3)
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  • 1
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    Zika virus in the Americas: Early epidemiological and genetic findings (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2016-03-26
    Beschreibung: Brazil has experienced an unprecedented epidemic of Zika virus (ZIKV), with ~30,000 cases reported to date. ZIKV was first detected in Brazil in May 2015, and cases of microcephaly potentially associated with ZIKV infection were identified in November 2015. We performed next-generation sequencing to generate seven Brazilian ZIKV genomes sampled from four self-limited cases, one blood donor, one fatal adult case, and one newborn with microcephaly and congenital malformations. Results of phylogenetic and molecular clock analyses show a single introduction of ZIKV into the Americas, which we estimated to have occurred between May and December 2013, more than 12 months before the detection of ZIKV in Brazil. The estimated date of origin coincides with an increase in air passengers to Brazil from ZIKV-endemic areas, as well as with reported outbreaks in the Pacific Islands. ZIKV genomes from Brazil are phylogenetically interspersed with those from other South American and Caribbean countries. Mapping mutations onto existing structural models revealed the context of viral amino acid changes present in the outbreak lineage; however, no shared amino acid changes were found among the three currently available virus genomes from microcephaly cases. Municipality-level incidence data indicate that reports of suspected microcephaly in Brazil best correlate with ZIKV incidence around week 17 of pregnancy, although this correlation does not demonstrate causation. Our genetic description and analysis of ZIKV isolates in Brazil provide a baseline for future studies of the evolution and molecular epidemiology of this emerging virus in the Americas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faria, Nuno Rodrigues -- Azevedo, Raimunda do Socorro da Silva -- Kraemer, Moritz U G -- Souza, Renato -- Cunha, Mariana Sequetin -- Hill, Sarah C -- Theze, Julien -- Bonsall, Michael B -- Bowden, Thomas A -- Rissanen, Ilona -- Rocco, Iray Maria -- Nogueira, Juliana Silva -- Maeda, Adriana Yurika -- Vasami, Fernanda Giseli da Silva -- Macedo, Fernando Luiz de Lima -- Suzuki, Akemi -- Rodrigues, Sueli Guerreiro -- Cruz, Ana Cecilia Ribeiro -- Nunes, Bruno Tardeli -- Medeiros, Daniele Barbosa de Almeida -- Rodrigues, Daniela Sueli Guerreiro -- Nunes Queiroz, Alice Louize -- da Silva, Eliana Vieira Pinto -- Henriques, Daniele Freitas -- Travassos da Rosa, Elisabeth Salbe -- de Oliveira, Consuelo Silva -- Martins, Livia Caricio -- Vasconcelos, Helena Baldez -- Casseb, Livia Medeiros Neves -- Simith, Darlene de Brito -- Messina, Jane P -- Abade, Leandro -- Lourenco, Jose -- Carlos Junior Alcantara, Luiz -- de Lima, Maricelia Maia -- Giovanetti, Marta -- Hay, Simon I -- de Oliveira, Rodrigo Santos -- Lemos, Poliana da Silva -- de Oliveira, Layanna Freitas -- de Lima, Clayton Pereira Silva -- da Silva, Sandro Patroca -- de Vasconcelos, Janaina Mota -- Franco, Luciano -- Cardoso, Jedson Ferreira -- Vianez-Junior, Joao Lidio da Silva Goncalves -- Mir, Daiana -- Bello, Gonzalo -- Delatorre, Edson -- Khan, Kamran -- Creatore, Marisa -- Coelho, Giovanini Evelim -- de Oliveira, Wanderson Kleber -- Tesh, Robert -- Pybus, Oliver G -- Nunes, Marcio R T -- Vasconcelos, Pedro F C -- 090532/Z/09/Z/Wellcome Trust/United Kingdom -- 095066/Wellcome Trust/United Kingdom -- 102427/Wellcome Trust/United Kingdom -- MR/L009528/1/Medical Research Council/United Kingdom -- R24 AT 120942/AT/NCCIH NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 15;352(6283):345-9. doi: 10.1126/science.aaf5036. Epub 2016 Mar 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. ; Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Para State, Brazil. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. ; Instituto Adolfo Lutz, University of Sao Paulo, Sao Paulo, Brazil. ; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. Metabiota, San Francisco, CA 94104, USA. ; Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia, Brazil. ; Centre of Post Graduation in Collective Health, Department of Health, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brazil. ; Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98121, USA. Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK. ; Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. ; Laboratorio de AIDS and Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil. ; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada. Department of Medicine, Division of Infectious Diseases, University of Toronto, Toronto, Ontario, Canada. ; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada. ; Brazilian Ministry of Health, Brasilia, Brazil. ; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. Metabiota, San Francisco, CA 94104, USA. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br. ; Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br. ; Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Para State, Brazil. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27013429" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aedes/virology ; Americas/epidemiology ; Animals ; *Disease Outbreaks ; Female ; Genome, Viral/genetics ; Humans ; Incidence ; Insect Vectors/virology ; Microcephaly/*epidemiology/virology ; Molecular Epidemiology ; Molecular Sequence Data ; Mutation ; Pacific Islands/epidemiology ; Phylogeny ; Pregnancy ; RNA, Viral/genetics ; Sequence Analysis, RNA ; Travel ; Zika Virus/classification/*genetics/isolation & purification ; Zika Virus Infection/*epidemiology/transmission/*virology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 2
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    A regulatory SNP causes a human genetic disease by creating a new transcriptional promoter (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2006-05-27
    Beschreibung: We describe a pathogenetic mechanism underlying a variant form of the inherited blood disorder alpha thalassemia. Association studies of affected individuals from Melanesia localized the disease trait to the telomeric region of human chromosome 16, which includes the alpha-globin gene cluster, but no molecular defects were detected by conventional approaches. After resequencing and using a combination of chromatin immunoprecipitation and expression analysis on a tiled oligonucleotide array, we identified a gain-of-function regulatory single-nucleotide polymorphism (rSNP) in a nongenic region between the alpha-globin genes and their upstream regulatory elements. The rSNP creates a new promoterlike element that interferes with normal activation of all downstream alpha-like globin genes. Thus, our work illustrates a strategy for distinguishing between neutral and functionally important rSNPs, and it also identifies a pathogenetic mechanism that could potentially underlie other genetic diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Gobbi, Marco -- Viprakasit, Vip -- Hughes, Jim R -- Fisher, Chris -- Buckle, Veronica J -- Ayyub, Helena -- Gibbons, Richard J -- Vernimmen, Douglas -- Yoshinaga, Yuko -- de Jong, Pieter -- Cheng, Jan-Fang -- Rubin, Edward M -- Wood, William G -- Bowden, Don -- Higgs, Douglas R -- MC_U137961143/Medical Research Council/United Kingdom -- MC_U137961145/Medical Research Council/United Kingdom -- MC_U137961147/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 May 26;312(5777):1215-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, OX3 9DS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16728641" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Cells, Cultured ; Chromatin Immunoprecipitation ; Chromosomes, Human, Pair 16/*genetics ; Erythroblasts ; GATA1 Transcription Factor/metabolism ; Gene Expression ; Gene Expression Profiling ; Globins/*genetics ; Haplotypes ; Humans ; Melanesia ; Minisatellite Repeats ; Multigene Family ; Oligonucleotide Array Sequence Analysis ; *Polymorphism, Single Nucleotide ; *Promoter Regions, Genetic ; Regulatory Elements, Transcriptional ; Transcription, Genetic ; alpha-Thalassemia/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 3
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    An Aboriginal Australian genome reveals separate human dispersals into Asia (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2011-09-24
    Beschreibung: We present an Aboriginal Australian genomic sequence obtained from a 100-year-old lock of hair donated by an Aboriginal man from southern Western Australia in the early 20th century. We detect no evidence of European admixture and estimate contamination levels to be below 0.5%. We show that Aboriginal Australians are descendants of an early human dispersal into eastern Asia, possibly 62,000 to 75,000 years ago. This dispersal is separate from the one that gave rise to modern Asians 25,000 to 38,000 years ago. We also find evidence of gene flow between populations of the two dispersal waves prior to the divergence of Native Americans from modern Asian ancestors. Our findings support the hypothesis that present-day Aboriginal Australians descend from the earliest humans to occupy Australia, likely representing one of the oldest continuous populations outside Africa.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991479/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991479/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rasmussen, Morten -- Guo, Xiaosen -- Wang, Yong -- Lohmueller, Kirk E -- Rasmussen, Simon -- Albrechtsen, Anders -- Skotte, Line -- Lindgreen, Stinus -- Metspalu, Mait -- Jombart, Thibaut -- Kivisild, Toomas -- Zhai, Weiwei -- Eriksson, Anders -- Manica, Andrea -- Orlando, Ludovic -- De La Vega, Francisco M -- Tridico, Silvana -- Metspalu, Ene -- Nielsen, Kasper -- Avila-Arcos, Maria C -- Moreno-Mayar, J Victor -- Muller, Craig -- Dortch, Joe -- Gilbert, M Thomas P -- Lund, Ole -- Wesolowska, Agata -- Karmin, Monika -- Weinert, Lucy A -- Wang, Bo -- Li, Jun -- Tai, Shuaishuai -- Xiao, Fei -- Hanihara, Tsunehiko -- van Driem, George -- Jha, Aashish R -- Ricaut, Francois-Xavier -- de Knijff, Peter -- Migliano, Andrea B -- Gallego Romero, Irene -- Kristiansen, Karsten -- Lambert, David M -- Brunak, Soren -- Forster, Peter -- Brinkmann, Bernd -- Nehlich, Olaf -- Bunce, Michael -- Richards, Michael -- Gupta, Ramneek -- Bustamante, Carlos D -- Krogh, Anders -- Foley, Robert A -- Lahr, Marta M -- Balloux, Francois -- Sicheritz-Ponten, Thomas -- Villems, Richard -- Nielsen, Rasmus -- Wang, Jun -- Willerslev, Eske -- BB/H005854/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/H008802/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- R01 HG003229/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):94-8. doi: 10.1126/science.1211177. Epub 2011 Sep 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, Natural History Museum of Denmark, Oster Voldgade 5-7, 1350 Copenhagen, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940856" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): African Continental Ancestry Group ; Animals ; Asia ; Asian Continental Ancestry Group/genetics ; Computer Simulation ; DNA, Mitochondrial/genetics ; Emigration and Immigration ; Ethnic Groups/genetics ; European Continental Ancestry Group/genetics ; Far East ; Gene Flow ; Gene Frequency ; Genetics, Population/methods ; *Genome, Human ; Genome, Mitochondrial ; Haplotypes ; Hominidae/genetics ; Humans ; Linkage Disequilibrium ; Male ; Oceanic Ancestry Group/*genetics ; Phylogeny ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Western Australia
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 4
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    The coffee genome provides insight into the convergent evolution of caffeine biosynthesis (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2014-09-06
    Beschreibung: Coffee is a valuable beverage crop due to its characteristic flavor, aroma, and the stimulating effects of caffeine. We generated a high-quality draft genome of the species Coffea canephora, which displays a conserved chromosomal gene order among asterid angiosperms. Although it shows no sign of the whole-genome triplication identified in Solanaceae species such as tomato, the genome includes several species-specific gene family expansions, among them N-methyltransferases (NMTs) involved in caffeine production, defense-related genes, and alkaloid and flavonoid enzymes involved in secondary compound synthesis. Comparative analyses of caffeine NMTs demonstrate that these genes expanded through sequential tandem duplications independently of genes from cacao and tea, suggesting that caffeine in eudicots is of polyphyletic origin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Denoeud, France -- Carretero-Paulet, Lorenzo -- Dereeper, Alexis -- Droc, Gaetan -- Guyot, Romain -- Pietrella, Marco -- Zheng, Chunfang -- Alberti, Adriana -- Anthony, Francois -- Aprea, Giuseppe -- Aury, Jean-Marc -- Bento, Pascal -- Bernard, Maria -- Bocs, Stephanie -- Campa, Claudine -- Cenci, Alberto -- Combes, Marie-Christine -- Crouzillat, Dominique -- Da Silva, Corinne -- Daddiego, Loretta -- De Bellis, Fabien -- Dussert, Stephane -- Garsmeur, Olivier -- Gayraud, Thomas -- Guignon, Valentin -- Jahn, Katharina -- Jamilloux, Veronique -- Joet, Thierry -- Labadie, Karine -- Lan, Tianying -- Leclercq, Julie -- Lepelley, Maud -- Leroy, Thierry -- Li, Lei-Ting -- Librado, Pablo -- Lopez, Loredana -- Munoz, Adriana -- Noel, Benjamin -- Pallavicini, Alberto -- Perrotta, Gaetano -- Poncet, Valerie -- Pot, David -- Priyono -- Rigoreau, Michel -- Rouard, Mathieu -- Rozas, Julio -- Tranchant-Dubreuil, Christine -- VanBuren, Robert -- Zhang, Qiong -- Andrade, Alan C -- Argout, Xavier -- Bertrand, Benoit -- de Kochko, Alexandre -- Graziosi, Giorgio -- Henry, Robert J -- Jayarama -- Ming, Ray -- Nagai, Chifumi -- Rounsley, Steve -- Sankoff, David -- Giuliano, Giovanni -- Albert, Victor A -- Wincker, Patrick -- Lashermes, Philippe -- New York, N.Y. -- Science. 2014 Sep 5;345(6201):1181-4. doi: 10.1126/science.1255274. Epub 2014 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commissariat a l'Energie Atomique, Genoscope, Institut de Genomique, BP5706, 91057 Evry, France. CNRS, UMR 8030, CP5706, Evry, France. Universite d'Evry, UMR 8030, CP5706, Evry, France. ; Department of Biological Sciences, 109 Cooke Hall, University at Buffalo (State University of New York), Buffalo, NY 14260, USA. ; Institut de Recherche pour le Developpement (IRD), UMR Resistance des Plantes aux Bioagresseurs (RPB) [Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD), IRD, UM2)], BP 64501, 34394 Montpellier Cedex 5, France. ; CIRAD, UMR Amelioration Genetique et Adaptation des Plantes Mediterraneennes et Tropicales (AGAP), F-34398 Montpellier, France. ; IRD, UMR Diversite Adaptation et Developpement des Plantes (CIRAD, IRD, UM2), BP 64501, 34394 Montpellier Cedex 5, France. ; Italian National Agency for New Technologies, Energy and Sustainable Development (ENEA) Casaccia Research Center, Via Anguillarese 301, 00123 Roma, Italy. ; Department of Mathematics and Statistics, University of Ottawa, 585 King Edward Avenue, Ottawa, Ontario K1N 6N5, Canada. ; Commissariat a l'Energie Atomique, Genoscope, Institut de Genomique, BP5706, 91057 Evry, France. ; Institut de Recherche pour le Developpement (IRD), UMR Resistance des Plantes aux Bioagresseurs (RPB) [Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD), IRD, UM2)], BP 64501, 34394 Montpellier Cedex 5, France. Bioversity International, Parc Scientifique Agropolis II, 34397 Montpellier Cedex 5, France. ; Nestle Research and Development Centre, 101 Avenue Gustave Eiffel, Notre-Dame-d'Oe, BP 49716, 37097 Tours Cedex 2, France. ; ENEA Trisaia Research Center, 75026 Rotondella, Italy. ; Bioversity International, Parc Scientifique Agropolis II, 34397 Montpellier Cedex 5, France. ; Department of Mathematics and Statistics, University of Ottawa, 585 King Edward Avenue, Ottawa, Ontario K1N 6N5, Canada. Center for Biotechnology, Universitat Bielefeld, Universitatsstrasse 27, D-33615 Bielefeld, Germany. AG Genominformatik, Technische Fakultat, Universitat Bielefeld, 33594 Bielefeld, Germany. ; Institut National de la Recherche Agronomique (INRA), Unite de Recherches en Genomique-Info (UR INRA 1164), Centre de Recherche de Versailles, 78026 Versailles Cedex, France. ; Department of Biological Sciences, 109 Cooke Hall, University at Buffalo (State University of New York), Buffalo, NY 14260, USA. Department of Biology, Chongqing University of Science and Technology, 4000042 Chongqing, China. ; Department of Plant Biology, 148 Edward R. Madigan Laboratory, MC-051, 1201 West Gregory Drive, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. ; Departament de Genetica and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Diagonal 643, Barcelona 08028, Spain. ; Department of Mathematics, University of Maryland, Mathematics Building 084, University of Maryland, College Park, MD 20742, USA. School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontario K1N 6N5, Canada. ; Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy. ; Indonesian Coffee and Cocoa Institute, Jember, East Java, Indonesia. ; Laboratorio de Genetica Molecular, Nucleo de Biotecnologia (NTBio), Embrapa Recursos Geneticos e Biotecnologia, Final Av. W/5 Norte, Parque Estacao Biologia, Brasilia-DF 70770-917, Brazil. ; CIRAD, UMR RPB (CIRAD, IRD, UM2), BP 64501, 34394 Montpellier Cedex 5, France. ; Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy. DNA Analytica Srl, Via Licio Giorgieri 5, 34127 Trieste, Italy. ; Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia 4072, Australia. ; Central Coffee Research Institute, Coffee Board, Coffee Research Station (Post) - 577 117 Chikmagalur District, Karnataka State, India. ; Hawaii Agriculture Research Center, Post Office Box 100, Kunia, HI 96759-0100, USA. ; BIO5 Institute, University of Arizona, 1657 Helen Street, Tucson, AZ 85721, USA. ; Department of Biological Sciences, 109 Cooke Hall, University at Buffalo (State University of New York), Buffalo, NY 14260, USA. vaalbert@buffalo.edu pwincker@genoscope.cns.fr philippe.lashermes@ird.fr. ; Commissariat a l'Energie Atomique, Genoscope, Institut de Genomique, BP5706, 91057 Evry, France. CNRS, UMR 8030, CP5706, Evry, France. Universite d'Evry, UMR 8030, CP5706, Evry, France. vaalbert@buffalo.edu pwincker@genoscope.cns.fr philippe.lashermes@ird.fr. ; Institut de Recherche pour le Developpement (IRD), UMR Resistance des Plantes aux Bioagresseurs (RPB) [Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD), IRD, UM2)], BP 64501, 34394 Montpellier Cedex 5, France. vaalbert@buffalo.edu pwincker@genoscope.cns.fr philippe.lashermes@ird.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25190796" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Caffeine/biosynthesis/*genetics ; Coffea/classification/*genetics ; *Evolution, Molecular ; *Genome, Plant ; Methyltransferases/genetics/*physiology ; Phylogeny ; Plant Proteins/genetics/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    Mapping the lectin-like activity of tumor necrosis factor (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1994-02-11
    Beschreibung: Tumor necrosis factor (TNF), but not lymphotoxin (LT), is directly trypanolytic for salivarian trypanosomes. This activity was not blocked by soluble 55-kilodalton and 75-kilodalton TNF receptors, but was potently inhibited by N,N'-diacetylchitobiose, an oligosaccharide that binds TNF. Comparative sequence analysis of TNF and LT localized the trypanocidal region, and synthetic peptides were trypanolytic. TNF molecules in which the trypanocidal region was mutated or deleted retained tumoricidal activity. Thus, trypanosome-TNF interactions occur via a TNF domain, probably with lectin-like affinity, which is functionally and spatially distinct from the mammalian TNF receptor binding sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lucas, R -- Magez, S -- De Leys, R -- Fransen, L -- Scheerlinck, J P -- Rampelberg, M -- Sablon, E -- De Baetselier, P -- New York, N.Y. -- Science. 1994 Feb 11;263(5148):814-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular Immunology, University of Brussels, Sint-Genesius-Rode, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8303299" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; *Disaccharides ; Glucans/metabolism/pharmacology ; L Cells (Cell Line) ; Lectins/chemistry/metabolism/*pharmacology ; Lymphotoxin-alpha/pharmacology ; Mice ; Molecular Sequence Data ; Mutation ; Peptide Fragments/chemistry/pharmacology ; Receptors, Tumor Necrosis Factor/metabolism ; Trypanosoma brucei brucei/*drug effects ; Tumor Necrosis Factor-alpha/chemistry/genetics/metabolism/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 6
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    Mapping human genetic diversity in Asia (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2009-12-17
    Beschreibung: Asia harbors substantial cultural and linguistic diversity, but the geographic structure of genetic variation across the continent remains enigmatic. Here we report a large-scale survey of autosomal variation from a broad geographic sample of Asian human populations. Our results show that genetic ancestry is strongly correlated with linguistic affiliations as well as geography. Most populations show relatedness within ethnic/linguistic groups, despite prevalent gene flow among populations. More than 90% of East Asian (EA) haplotypes could be found in either Southeast Asian (SEA) or Central-South Asian (CSA) populations and show clinal structure with haplotype diversity decreasing from south to north. Furthermore, 50% of EA haplotypes were found in SEA only and 5% were found in CSA only, indicating that SEA was a major geographic source of EA populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉HUGO Pan-Asian SNP Consortium -- Abdulla, Mahmood Ameen -- Ahmed, Ikhlak -- Assawamakin, Anunchai -- Bhak, Jong -- Brahmachari, Samir K -- Calacal, Gayvelline C -- Chaurasia, Amit -- Chen, Chien-Hsiun -- Chen, Jieming -- Chen, Yuan-Tsong -- Chu, Jiayou -- Cutiongco-de la Paz, Eva Maria C -- De Ungria, Maria Corazon A -- Delfin, Frederick C -- Edo, Juli -- Fuchareon, Suthat -- Ghang, Ho -- Gojobori, Takashi -- Han, Junsong -- Ho, Sheng-Feng -- Hoh, Boon Peng -- Huang, Wei -- Inoko, Hidetoshi -- Jha, Pankaj -- Jinam, Timothy A -- Jin, Li -- Jung, Jongsun -- Kangwanpong, Daoroong -- Kampuansai, Jatupol -- Kennedy, Giulia C -- Khurana, Preeti -- Kim, Hyung-Lae -- Kim, Kwangjoong -- Kim, Sangsoo -- Kim, Woo-Yeon -- Kimm, Kuchan -- Kimura, Ryosuke -- Koike, Tomohiro -- Kulawonganunchai, Supasak -- Kumar, Vikrant -- Lai, Poh San -- Lee, Jong-Young -- Lee, Sunghoon -- Liu, Edison T -- Majumder, Partha P -- Mandapati, Kiran Kumar -- Marzuki, Sangkot -- Mitchell, Wayne -- Mukerji, Mitali -- Naritomi, Kenji -- Ngamphiw, Chumpol -- Niikawa, Norio -- Nishida, Nao -- Oh, Bermseok -- Oh, Sangho -- Ohashi, Jun -- Oka, Akira -- Ong, Rick -- Padilla, Carmencita D -- Palittapongarnpim, Prasit -- Perdigon, Henry B -- Phipps, Maude Elvira -- Png, Eileen -- Sakaki, Yoshiyuki -- Salvador, Jazelyn M -- Sandraling, Yuliana -- Scaria, Vinod -- Seielstad, Mark -- Sidek, Mohd Ros -- Sinha, Amit -- Srikummool, Metawee -- Sudoyo, Herawati -- Sugano, Sumio -- Suryadi, Helena -- Suzuki, Yoshiyuki -- Tabbada, Kristina A -- Tan, Adrian -- Tokunaga, Katsushi -- Tongsima, Sissades -- Villamor, Lilian P -- Wang, Eric -- Wang, Ying -- Wang, Haifeng -- Wu, Jer-Yuarn -- Xiao, Huasheng -- Xu, Shuhua -- Yang, Jin Ok -- Shugart, Yin Yao -- Yoo, Hyang-Sook -- Yuan, Wentao -- Zhao, Guoping -- Zilfalil, Bin Alwi -- Indian Genome Variation Consortium -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1541-5. doi: 10.1126/science.1177074.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007900" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Algorithms ; Asia ; Asian Continental Ancestry Group/*genetics/history ; Bayes Theorem ; Cluster Analysis ; *Emigration and Immigration/history ; Ethnic Groups/*genetics/history ; Gene Flow ; Genotype ; Geography ; *Haplotypes ; History, Ancient ; Humans ; Language ; Linguistics ; Oligonucleotide Array Sequence Analysis ; Phylogeny ; *Polymorphism, Single Nucleotide ; Principal Component Analysis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 7
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    Unbekannt
    Erosion of lizard diversity by climate change and altered thermal niches (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2010-05-15
    Beschreibung: It is predicted that climate change will cause species extinctions and distributional shifts in coming decades, but data to validate these predictions are relatively scarce. Here, we compare recent and historical surveys for 48 Mexican lizard species at 200 sites. Since 1975, 12% of local populations have gone extinct. We verified physiological models of extinction risk with observed local extinctions and extended projections worldwide. Since 1975, we estimate that 4% of local populations have gone extinct worldwide, but by 2080 local extinctions are projected to reach 39% worldwide, and species extinctions may reach 20%. Global extinction projections were validated with local extinctions observed from 1975 to 2009 for regional biotas on four other continents, suggesting that lizards have already crossed a threshold for extinctions caused by climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinervo, Barry -- Mendez-de-la-Cruz, Fausto -- Miles, Donald B -- Heulin, Benoit -- Bastiaans, Elizabeth -- Villagran-Santa Cruz, Maricela -- Lara-Resendiz, Rafael -- Martinez-Mendez, Norberto -- Calderon-Espinosa, Martha Lucia -- Meza-Lazaro, Rubi Nelsi -- Gadsden, Hector -- Avila, Luciano Javier -- Morando, Mariana -- De la Riva, Ignacio J -- Victoriano Sepulveda, Pedro -- Rocha, Carlos Frederico Duarte -- Ibarguengoytia, Nora -- Aguilar Puntriano, Cesar -- Massot, Manuel -- Lepetz, Virginie -- Oksanen, Tuula A -- Chapple, David G -- Bauer, Aaron M -- Branch, William R -- Clobert, Jean -- Sites, Jack W Jr -- New York, N.Y. -- Science. 2010 May 14;328(5980):894-9. doi: 10.1126/science.1184695.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA. lizardrps@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20466932" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acclimatization ; Animals ; *Biodiversity ; Biological Evolution ; Body Temperature ; *Climate Change ; *Ecosystem ; *Extinction, Biological ; Female ; Forecasting ; Geography ; Global Warming ; *Lizards/genetics/physiology ; Male ; Mexico ; Models, Biological ; Phylogeny ; Population Dynamics ; Reproduction ; Seasons ; Selection, Genetic ; Temperature
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    Ocean plankton. Determinants of community structure in the global plankton interactome (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2015-05-23
    Beschreibung: Species interaction networks are shaped by abiotic and biotic factors. Here, as part of the Tara Oceans project, we studied the photic zone interactome using environmental factors and organismal abundance profiles and found that environmental factors are incomplete predictors of community structure. We found associations across plankton functional types and phylogenetic groups to be nonrandomly distributed on the network and driven by both local and global patterns. We identified interactions among grazers, primary producers, viruses, and (mainly parasitic) symbionts and validated network-generated hypotheses using microscopy to confirm symbiotic relationships. We have thus provided a resource to support further research on ocean food webs and integrating biological components into ocean models.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lima-Mendez, Gipsi -- Faust, Karoline -- Henry, Nicolas -- Decelle, Johan -- Colin, Sebastien -- Carcillo, Fabrizio -- Chaffron, Samuel -- Ignacio-Espinosa, J Cesar -- Roux, Simon -- Vincent, Flora -- Bittner, Lucie -- Darzi, Youssef -- Wang, Jun -- Audic, Stephane -- Berline, Leo -- Bontempi, Gianluca -- Cabello, Ana M -- Coppola, Laurent -- Cornejo-Castillo, Francisco M -- d'Ovidio, Francesco -- De Meester, Luc -- Ferrera, Isabel -- Garet-Delmas, Marie-Jose -- Guidi, Lionel -- Lara, Elena -- Pesant, Stephane -- Royo-Llonch, Marta -- Salazar, Guillem -- Sanchez, Pablo -- Sebastian, Marta -- Souffreau, Caroline -- Dimier, Celine -- Picheral, Marc -- Searson, Sarah -- Kandels-Lewis, Stefanie -- Tara Oceans coordinators -- Gorsky, Gabriel -- Not, Fabrice -- Ogata, Hiroyuki -- Speich, Sabrina -- Stemmann, Lars -- Weissenbach, Jean -- Wincker, Patrick -- Acinas, Silvia G -- Sunagawa, Shinichi -- Bork, Peer -- Sullivan, Matthew B -- Karsenti, Eric -- Bowler, Chris -- de Vargas, Colomban -- Raes, Jeroen -- New York, N.Y. -- Science. 2015 May 22;348(6237):1262073. doi: 10.1126/science.1262073.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Rega Institute KU Leuven, Herestraat 49, 3000 Leuven, Belgium. VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences (DBIT) Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. ; Station Biologique de Roscoff, CNRS, UMR 7144, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, Universite Pierre et Marie Curie (UPMC) Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. ; Station Biologique de Roscoff, CNRS, UMR 7144, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, Universite Pierre et Marie Curie (UPMC) Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), Inserm U1024, CNRS UMR 8197, Paris, F-75005 France. ; Department of Microbiology and Immunology, Rega Institute KU Leuven, Herestraat 49, 3000 Leuven, Belgium. VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences (DBIT) Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. Interuniversity Institute of Bioinformatics in Brussels (IB), ULB Machine Learning Group, Computer Science Department, Universite Libre de Bruxelles (ULB), Brussels, Belgium. ; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA. ; VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), Inserm U1024, CNRS UMR 8197, Paris, F-75005 France. ; Station Biologique de Roscoff, CNRS, UMR 7144, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, Universite Pierre et Marie Curie (UPMC) Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), Inserm U1024, CNRS UMR 8197, Paris, F-75005 France. Institut de Biologie Paris-Seine, CNRS FR3631, F-75005, Paris, France. ; VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences (DBIT) Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. ; Department of Microbiology and Immunology, Rega Institute KU Leuven, Herestraat 49, 3000 Leuven, Belgium. VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. ; CNRS, UMR 7093, Laboratoire d'Oceanographie de Villefranche (LOV), Observatoire Oceanologique, F-06230 Villefranche-sur-mer, France. Sorbonne Universites, UPMC Paris 06, UMR 7093, Laboratoire d'Oceanographie de Villefranche (LOV), Observatoire Oceanologique, F-06230 Villefranche-sur-mer, France. ; Interuniversity Institute of Bioinformatics in Brussels (IB), ULB Machine Learning Group, Computer Science Department, Universite Libre de Bruxelles (ULB), Brussels, Belgium. ; Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM)-Consejo Superior de Investigaciones Cientificas (CSIC), Pg. Maritim de la Barceloneta, 37-49, Barcelona E08003, Spain. ; Sorbonne Universites, UPMC, Universite Paris 06, CNRS-Institut pour la Recherche et le Developpement-Museum National d'Histoire Naturelle, Laboratoire d'Oceanographie et du Climat: Experimentations et Approches Numeriques (LOCEAN) Laboratory, 4 Place Jussieu, 75005, Paris, France. ; KU Leuven, Laboratory of Aquatic Ecology, Evolution and Conservation, Charles Deberiotstraat 32, 3000 Leuven. ; PANGAEA, Data Publisher for Earth and Environmental Science, University of Bremen, Hochschulring 18, 28359 Bremen, Germany. MARUM, Center for Marine Environmental Sciences, University of Bremen, Hochschulring 18, 28359 Bremen, Germany. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Directors' Research, European Molecular Biology Laboratory, Heidelberg, Germany. ; Institute for Chemical Research, Kyoto University, Gokasho, Uji, 611-0011 Kyoto, Japan. ; Department of Geosciences, Laboratoire de Meteorologie Dynamique (LMD), Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris Cedex 05, France. Laboratoire de Physique des Ocean, Universite de Bretagne Occidentale (UBO)-Institut Universaire Europeen de la Mer (IUEM), Palce Copernic, 29820 Polouzane, France. ; Commissariat a l'Energie Atomique (CEA), Genoscope, 2 rue Gaston Cremieux, 91000 Evry, France. CNRS, UMR 8030, 2 rue Gaston Cremieux, 91000 Evry, France. Universite d'Evry, UMR 8030, CP5706 Evry, France. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. ; Structural and Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Max-Delbruck-Centre for Molecular Medicine, 13092 Berlin, Germany. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), Inserm U1024, CNRS UMR 8197, Paris, F-75005 France. Directors' Research, European Molecular Biology Laboratory, Heidelberg, Germany. jeroen.raes@vib-kuleuven.be vargas@sb-roscoff.fr cbowler@biologie.ens.fr karsenti@embl.de. ; Ecole Normale Superieure, Institut de Biologie de l'ENS (IBENS), Inserm U1024, CNRS UMR 8197, Paris, F-75005 France. jeroen.raes@vib-kuleuven.be vargas@sb-roscoff.fr cbowler@biologie.ens.fr karsenti@embl.de. ; Station Biologique de Roscoff, CNRS, UMR 7144, Place Georges Teissier, 29680 Roscoff, France. Sorbonne Universites, Universite Pierre et Marie Curie (UPMC) Universite Paris 06, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, 29680 Roscoff, France. jeroen.raes@vib-kuleuven.be vargas@sb-roscoff.fr cbowler@biologie.ens.fr karsenti@embl.de. ; Department of Microbiology and Immunology, Rega Institute KU Leuven, Herestraat 49, 3000 Leuven, Belgium. VIB Center for the Biology of Disease, VIB, Herestraat 49, 3000 Leuven, Belgium. Department of Applied Biological Sciences (DBIT) Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. jeroen.raes@vib-kuleuven.be vargas@sb-roscoff.fr cbowler@biologie.ens.fr karsenti@embl.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999517" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Food Chain ; Host Specificity ; Oceans and Seas ; Phylogeny ; Plankton/*classification/*physiology ; Platyhelminths/classification/physiology ; Sunlight ; *Symbiosis ; Viruses/classification
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Phylogeny and physiology of Drosophila opsins (1994)
    Springer
    Journal of molecular evolution 38 (1994), S. 250-262 
    Details
    ISSN: 1432-1432
    Schlagwort(e): Opsin ; Visual pigments ; Gene family ; Evolution ; Phylogeny ; Spectral sensitivity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Phylogenetic and physiological methods were used to study the evolution of the opsin gene family in Drosophila. A phylogeny based on DNA sequences from 13 opsin genes including representatives from the two major subgenera of Drosophila shows six major, well-supported clades: The “blue opsin” clade includes all of the Rhl and Rh2 genes and is separated into two distinct subclades of Rhl sequences and Rh2 sequences; the ultraviolet opsin clade includes all Rh3 and Rh4 genes and bifurcates into separate Rh3 and Rh4 clades. The duplications that generated this gene family most likely took place before the evolution of the subgenera Drosophila and Sophophora and their component species groups. Numerous changes have occurred in these genes since the duplications, including the loss and/or gain of introns in the different genes and even within the Rhl and Rh4 clades. Despite these changes, the spectral sensitivity of each of the opsins has remained remarkably fixed in a sample of four species representing two species groups in each of the two subgenera. All of the strains that were investigated had R1-6 (Rhl) spectral sensitivity curves that peaked at or near 480 nm, R7 (Rh3 and Rh4) peaks in the ultraviolet range, and ocellar (Rh2) peaks near 420 nm. Each of the four gene clades on the phylogeny exhibits very conservative patterns of amino acid replacement in domains of the protein thought to influence spectral sen sitivity, reflecting strong constraints on the spectrum of light visible to Drosophila.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00176087
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  • 10
    Digitale Medien
    Digitale Medien
    RAPD variation in wild populations of four species of the genus Hordeum (Poaceae) (1998)
    Springer
    Theoretical and applied genetics 96 (1998), S. 101-111 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Hordeum ; Barley ; RAPD ; Variability ; Phylogeny ; DNA analyses
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  The genetic variation of 102 natural populations of wild barley growing in Spain was assessed using RAPDs (random amplified polymorphic DNA). The plant material included the annual species H. marinum subsp. marinum (22 populations) and subsp. gussoneanum (14), H. murinum subsp. murinum (7) and subsp. leporinum (35), and the perennial species H. bulbosum (17) and H. secalinum (7). Ten of the tested 64 arbitrary 10-mer primers amplified polymorphic DNA in all taxonomic units. Analyses was performed within and between populations, species and subspecies. The primers gave a total of 250 RAPD products. The level of polymorphism varied between taxonomic units depending on the primers employed and the plant reproductive system. In general, the most variable were the allogamous species H. secalinum and H. bulbosum and the autogamous H. marinum subsp. marinum. Among the amplified bands, 69 (27%) were shared by at least two different taxonomic units. The remaining bands were specific. The results demonstrate differences in the degree of similarity between taxonomic units. Jaccard’s similarity coefficients for interval measure within and between populations were used to produce a cluster diagram using the unweighted pair-group method (UPGMA). The different populations of the species and subspecies of Hordeum fell into three groups. The first group contained the populations belonging to both subspecies of H. marinum, plus those of H. secalinum. The populations of H. marinum subsp. gussoneanum were very closely associated. Those of H. marinum subsp. marinum were grouped in a broad cluster. The second group, occupying the innermost position of the tree, was very closely associated with the populations of both subspecies of H. murinum. The third branch segregated H. bulbosum. A series of RAPD markers were investigated by cleaving the amplified products of the same size with restriction endonucleases that recognize targets of 4- or 6-bp. The production of equivalent fragments following cleavage by the same enzyme would seem to demonstrate their homology in samples from different individuals, populations or taxonomic units.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220050715
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