Download Full Article in PDF Format
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Thymelaeaceae)
Origin and diversification of the Australasian genera Pimelea and Thecanthes (Thymelaeaceae) by MOLEBOHENG CYNTHIA MOTS! Thesis submitted in fulfilment of the requirements for the degree PHILOSOPHIAE DOCTOR in BOTANY in the FACULTY OF SCIENCE at the UNIVERSITY OF JOHANNESBURG Supervisor: Dr Michelle van der Bank Co-supervisors: Dr Barbara L. Rye Dr Vincent Savolainen JUNE 2009 AFFIDAVIT: MASTER'S AND DOCTORAL STUDENTS TO WHOM IT MAY CONCERN This serves to confirm that I Moleboheng_Cynthia Motsi Full Name(s) and Surname ID Number 7808020422084 Student number 920108362 enrolled for the Qualification PhD Faculty _Science Herewith declare that my academic work is in line with the Plagiarism Policy of the University of Johannesburg which I am familiar. I further declare that the work presented in the thesis (minor dissertation/dissertation/thesis) is authentic and original unless clearly indicated otherwise and in such instances full reference to the source is acknowledged and I do not pretend to receive any credit for such acknowledged quotations, and that there is no copyright infringement in my work. I declare that no unethical research practices were used or material gained through dishonesty. I understand that plagiarism is a serious offence and that should I contravene the Plagiarism Policy notwithstanding signing this affidavit, I may be found guilty of a serious criminal offence (perjury) that would amongst other consequences compel the UJ to inform all other tertiary institutions of the offence and to issue a corresponding certificate of reprehensible academic conduct to whomever request such a certificate from the institution. Signed at _Johannesburg on this 31 of _July 2009 Signature Print name Moleboheng_Cynthia Motsi STAMP COMMISSIONER OF OATHS Affidavit certified by a Commissioner of Oaths This affidavit cordons with the requirements of the JUSTICES OF THE PEACE AND COMMISSIONERS OF OATHS ACT 16 OF 1963 and the applicable Regulations published in the GG GNR 1258 of 21 July 1972; GN 903 of 10 July 1998; GN 109 of 2 February 2001 as amended. -
One New Endemic Plant Species on Average Per Month in New Caledonia, Including Eight More New Species from Île Art (Belep Islan
CSIRO PUBLISHING Australian Systematic Botany, 2018, 31, 448–480 https://doi.org/10.1071/SB18016 One new endemic plant species on average per month in New Caledonia, including eight more new species from Île Art (Belep Islands), a major micro-hotspot in need of protection Gildas Gâteblé A,G, Laure Barrabé B, Gordon McPherson C, Jérôme Munzinger D, Neil Snow E and Ulf Swenson F AInstitut Agronomique Néo-Calédonien, Equipe ARBOREAL, BP 711, 98810 Mont-Dore, New Caledonia. BEndemia, Plant Red List Authority, 7 rue Pierre Artigue, Portes de Fer, 98800 Nouméa, New Caledonia. CHerbarium, Missouri Botanical Garden, 4344 Shaw Boulevard, Saint Louis, MO 63110, USA. DAMAP, IRD, CIRAD, CNRS, INRA, Université Montpellier, F-34000 Montpellier, France. ET.M. Sperry Herbarium, Department of Biology, Pittsburg State University, Pittsburg, KS 66762, USA. FDepartment of Botany, Swedish Museum of Natural History, PO Box 50007, SE-104 05 Stockholm, Sweden. GCorresponding author. Email: [email protected] Abstract. The New Caledonian biodiversity hotspot contains many micro-hotspots that exhibit high plant micro- endemism, and that are facing different types and intensities of threats. The Belep archipelago, and especially Île Art, with 24 and 21 respective narrowly endemic species (1 Extinct,21Critically Endangered and 2 Endangered), should be considered as the most sensitive micro-hotspot of plant diversity in New Caledonia because of the high anthropogenic threat of fire. Nano-hotspots could also be defined for the low forest remnants of the southern and northern plateaus of Île Art. With an average rate of more than one new species described for New Caledonia each month since January 2000 and five new endemics for the Belep archipelago since 2009, the state of knowledge of the flora is steadily improving. -
Pakaraimaea Dipterocarpacea
The Ectomycorrhizal Fungal Community in a Neotropical Forest Dominated by the Endemic Dipterocarp Pakaraimaea dipterocarpacea Matthew E. Smith1*, Terry W. Henkel2, Jessie K. Uehling2, Alexander K. Fremier3, H. David Clarke4, Rytas Vilgalys5 1 Department of Plant Pathology, University of Florida, Gainesville, Florida, United States of America, 2 Department of Biological Sciences, Humboldt State University, Arcata, California, United States of America, 3 Department of Fish and Wildlife Resources, University of Idaho, Moscow, Idaho, United States of America, 4 Department of Biology, University of North Carolina Asheville, Asheville, North Carolina, United States of America, 5 Department of Biology, Duke University, Durham, North Carolina, United States of America Abstract Ectomycorrhizal (ECM) plants and fungi can be diverse and abundant in certain tropical ecosystems. For example, the primarily paleotropical ECM plant family Dipterocarpaceae is one of the most speciose and ecologically important tree families in Southeast Asia. Pakaraimaea dipterocarpacea is one of two species of dipterocarp known from the Neotropics, and is also the only known member of the monotypic Dipterocarpaceae subfamily Pakaraimoideae. This Guiana Shield endemic is only known from the sandstone highlands of Guyana and Venezuela. Despite its unique phylogenetic position and unusual geographical distribution, the ECM fungal associations of P. dipterocarpacea are understudied throughout the tree’s range. In December 2010 we sampled ECM fungi on roots of P. dipterocarpacea and the co-occurring ECM tree Dicymbe jenmanii (Fabaceae subfamily Caesalpinioideae) in the Upper Mazaruni River Basin of Guyana. Based on ITS rDNA sequencing we documented 52 ECM species from 11 independent fungal lineages. Due to the phylogenetic distance between the two host tree species, we hypothesized that P. -
Phylogeny of the Tropical Tree Family Dipterocarpaceae Based on Nucleotide Sequences of the Chloroplast Rbcl Gene1
American Journal of Botany 86(8): 1182±1190. 1999. PHYLOGENY OF THE TROPICAL TREE FAMILY DIPTEROCARPACEAE BASED ON NUCLEOTIDE SEQUENCES OF THE CHLOROPLAST RBCL GENE1 S. DAYANANDAN,2,6 PETER S. ASHTON,3 SCOTT M. WILLIAMS,4 AND RICHARD B. PRIMACK2 2Biology Department, Boston University, Boston, Massachusetts 02215; 3Harvard University Herbaria, 22 Divinity Avenue, Cambridge, Massachusetts 02138; and 4Division of Biomedical Sciences, Meharry Medical College, 1005 D. B. Todd, Jr. Boulevard, Nashville, Tennessee 37208 The Dipterocarpaceae, well-known trees of the Asian rain forests, have been variously assigned to Malvales and Theales. The family, if the Monotoideae of Africa (30 species) and South America and the Pakaraimoideae of South America (one species) are included, comprises over 500 species. Despite the high diversity and ecological dominance of the Dipterocar- paceae, phylogenetic relationships within the family as well as between dipterocarps and other angiosperm families remain poorly de®ned. We conducted parsimony analyses on rbcL sequences from 35 species to reconstruct the phylogeny of the Dipterocarpaceae. The consensus tree resulting from these analyses shows that the members of Dipterocarpaceae, including Monotes and Pakaraimaea, form a monophyletic group closely related to the family Sarcolaenaceae and are allied to Malvales. The present generic and higher taxon circumscriptions of Dipterocarpaceae are mostly in agreement with this molecular phylogeny with the exception of the genus Hopea, which forms a clade with Shorea sections Anthoshorea and Doona. Phylogenetic placement of Dipterocarpus and Dryobalanops remains unresolved. Further studies involving repre- sentative taxa from Cistaceae, Elaeocarpaceae, Hopea, Shorea, Dipterocarpus, and Dryobalanops will be necessary for a comprehensive understanding of the phylogeny and generic limits of the Dipterocarpaceae. -
New Species and Distribution Records for Clavulina (Cantharellales, Basidiomycota) from the Guiana Shield, with a Key to the Lowland Neotropical Taxa
fungal biology 116 (2012) 1263e1274 journal homepage: www.elsevier.com/locate/funbio New species and distribution records for Clavulina (Cantharellales, Basidiomycota) from the Guiana Shield, with a key to the lowland neotropical taxa Jessie K. UEHLINGa,*,1, Terry W. HENKELa, M. Catherine AIMEb, Rytas VILGALYSc, Matthew E. SMITHd aDepartment of Biological Sciences, Humboldt State University, Arcata, CA 95521, USA bDepartment of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907, USA cDepartment of Biology, Duke University, Durham, NC 27708, USA dDepartment of Plant Pathology, University of Florida, Gainesville, FL 32611, USA article info abstract Article history: Three new and one previously described species of Clavulina (Clavulinaceae, Cantharel- Received 4 April 2012 lales, Basidiomycota) are reported from the central Guiana Shield region from tropical rain- Received in revised form forests dominated by ectomycorrhizal trees of the leguminous genus Dicymbe (Fabaceae 19 September 2012 subfam. Caesalpinioideae). We provide morphological, DNA sequence, habitat, and fruiting Accepted 21 September 2012 occurrence data for each species. The new species conform to a generic concept of Clavu- Available online 7 November 2012 lina that includes coralloid, branched basidiomata with amphigenous hymenia, basidia Corresponding Editor: with two or 2À4 incurved sterigmata and postpartal septa present or absent, and smooth, H. Thorsten Lumbsch hyaline, guttulate basidiospores. Placements of the new species in Clavulina were corrobo- rated with DNA sequence data from the internal transcribed spacer and large subunit of Keywords: the nuclear ribosomal repeat, and their infrageneric relationships were examined with Cantharelloid clade phylogenetic analyses based on DNA from the region coding for the second largest subunit Coral fungi of DNA-dependent RNA polymerase II (rpb2). -
Karyomorphology and Its Evolution in Dipterocarpaceae (Malvales)
© 2020 The Japan Mendel Society Cytologia 85(2): 141–149 Karyomorphology and Its Evolution in Dipterocarpaceae (Malvales) Kazuo Oginuma1*, Shawn Y. K. Lum2 and Hiroshi Tobe3 1 The Community Center for the Advancement of Education and Research at the University of Kochi, 5–15 Eikokuji-cho, Kochi 780–8515, Japan 2 Asian School of the Environment, Nanyang Technological University, Singapore 639798 3 Department of Botany, Graduate School of Science, Kyoto University, Kyoto 606–8502, Japan Received January 16, 2020; accepted February 9, 2020 Summary Previous chromosome information is restricted to Dipterocarpoideae, one of the two subfamilies of Dipterocarpaceae, and no chromosome information is available for another subfamily Monotoideae. Here we present the first karyomorphology of Marquesia macroura (2n=22) (Monotoideae), as well as of four species (2n=22) of four genera in tribe Dipterocarpeae and five species (2n=14) of tribe Shoreae in Dipterocarpoideae. Comparisons within Dipterocarpaceae and with Sarcolaenaceae (2n=22) sister to Dipetrocarpaceae in the light of phylogenetic relationships show that the basic chromosome number x=11 is plesiomorphic and x=7 apomor- phic in Dipterocapaceae. Based on available information, tribe Shoreae (x=7) has a uniform karyotype where all chromosomes have a centromere at median position, while the rest of the family (x=11) have a diverse karyotype in terms of the frequency of chromosomes with a centromere at median, submedian and subterminal position. We discussed the meaning of lability of karyotype in chromosome evolution. Keywords Basic chromosome number, Chromosome evolution, Dipterocarpaceae, Karyomorphology. Dipterocarpaceae (Malvales) are a family of 16 gen- x=10, and five genera Dryobalanops, Hopea, Neobala- era and 680 species distributed in tropical regions of nocarpus, Parashorea and Shorea of tribe Shoreae all the Old World, especially in the rain forests of Malesia have x=7. -
Patterns of Flammability Across the Vascular Plant Phylogeny, with Special Emphasis on the Genus Dracophyllum
Lincoln University Digital Thesis Copyright Statement The digital copy of this thesis is protected by the Copyright Act 1994 (New Zealand). This thesis may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: you will use the copy only for the purposes of research or private study you will recognise the author's right to be identified as the author of the thesis and due acknowledgement will be made to the author where appropriate you will obtain the author's permission before publishing any material from the thesis. Patterns of flammability across the vascular plant phylogeny, with special emphasis on the genus Dracophyllum A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of philosophy at Lincoln University by Xinglei Cui Lincoln University 2020 Abstract of a thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of philosophy. Abstract Patterns of flammability across the vascular plant phylogeny, with special emphasis on the genus Dracophyllum by Xinglei Cui Fire has been part of the environment for the entire history of terrestrial plants and is a common disturbance agent in many ecosystems across the world. Fire has a significant role in influencing the structure, pattern and function of many ecosystems. Plant flammability, which is the ability of a plant to burn and sustain a flame, is an important driver of fire in terrestrial ecosystems and thus has a fundamental role in ecosystem dynamics and species evolution. However, the factors that have influenced the evolution of flammability remain unclear. -
Historical Biogeography and Diversification of the Cosmopolitan Ectomycorrhizal Mushroom Family Inocybaceae
Out of the Palaeotropics? Historical biogeography and diversification of the cosmopolitan ectomycorrhizal mushroom family Inocybaceae P. Brandon Matheny1*, M. Catherine Aime2, Neale L. Bougher3, Bart Buyck4, Dennis E. Desjardin5, Egon Horak6, Bradley R. Kropp7, D. Jean Lodge8, Kasem Soytong9, James M. Trappe10 and David S. Hibbett11 ABSTRACT Aim The ectomycorrhizal (ECM) mushroom family Inocybaceae is widespread in north temperate regions, but more than 150 species are encountered in the tropics and the Southern Hemisphere. The relative roles of recent and ancient biogeographical processes, relationships with plant hosts, and the timing of divergences that have shaped the current geographic distribution of the family are investigated. location Africa, Australia, Neotropics, New Zealand, north temperate zone, Palaeotropics, Southeast Asia, South America, south temperate zone. Methods We reconstruct a phylogeny of the Inocybaceae with a geological timeline using a relaxed molecular clock. Divergence dates of lineages are estimated statistically to test vicariance-based hypotheses concerning relatedness of disjunct ECM taxa. A series of internal maximum time constraints is used to evaluate two different calibrations. Ancestral state reconstruction is used to infer ancestral areas and ancestral plant partners of the family. Results The Palaeotropics are unique in containing representatives of all major clades of Inocybaceae. Six of the seven major clades diversified initially during the Cretaceous, with subsequent radiations probably during the early Palaeogene. Vicariance patterns cannot be rejected that involve area relationships for Africa- Australia, Africa-India and southern South America-Australia. Northern and southern South America, Australia and New Zealand are primarily the recipients of immigrant taxa during the Palaeogene or later. Angiosperms were the earliest hosts of Inocybaceae. -
ABSTRACTS 117 Systematics Section, BSA / ASPT / IOPB
Systematics Section, BSA / ASPT / IOPB 466 HARDY, CHRISTOPHER R.1,2*, JERROLD I DAVIS1, breeding system. This effectively reproductively isolates the species. ROBERT B. FADEN3, AND DENNIS W. STEVENSON1,2 Previous studies have provided extensive genetic, phylogenetic and 1Bailey Hortorium, Cornell University, Ithaca, NY 14853; 2New York natural selection data which allow for a rare opportunity to now Botanical Garden, Bronx, NY 10458; 3Dept. of Botany, National study and interpret ontogenetic changes as sources of evolutionary Museum of Natural History, Smithsonian Institution, Washington, novelties in floral form. Three populations of M. cardinalis and four DC 20560 populations of M. lewisii (representing both described races) were studied from initiation of floral apex to anthesis using SEM and light Phylogenetics of Cochliostema, Geogenanthus, and microscopy. Allometric analyses were conducted on data derived an undescribed genus (Commelinaceae) using from floral organs. Sympatric populations of the species from morphology and DNA sequence data from 26S, 5S- Yosemite National Park were compared. Calyces of M. lewisii initi- NTS, rbcL, and trnL-F loci ate later than those of M. cardinalis relative to the inner whorls, and sepals are taller and more acute. Relative times of initiation of phylogenetic study was conducted on a group of three small petals, sepals and pistil are similar in both species. Petal shapes dif- genera of neotropical Commelinaceae that exhibit a variety fer between species throughout development. Corolla aperture of unusual floral morphologies and habits. Morphological A shape becomes dorso-ventrally narrow during development of M. characters and DNA sequence data from plastid (rbcL, trnL-F) and lewisii, and laterally narrow in M. -
Some Outcomes of the Nomenclature Section of the Xixth International Botanical Congress
Bothalia - African Biodiversity & Conservation ISSN: (Online) 2311-9284, (Print) 0006-8241 Page 1 of 4 News and views Some outcomes of the Nomenclature Section of the XIXth International Botanical Congress Authors: Background: A Nomenclature Section meeting to amend the International Code of Nomenclature 1 Ronell R. Klopper for algae, fungi and plants is held every six years, a week before the International Botanical Congress. Z. Wilhelm de Beer2 Gideon F. Smith3,4 Objectives: To report on some of the outcomes of the Nomenclature Section of the XIXth International Botanical Congress that was held in Shenzhen, China, in July 2017. Affiliations: 1 Biosystematics Research & Method: Outcomes that are especially relevant to South African botanists and mycologists are Biodiversity Collections Division, South African summarised from published Nomenclature and General Committee reports, as well as the National Biodiversity published report of congress action. Institute, South Africa Results: This short note summarises and highlights some of the decisions taken at the 2Department of Biochemistry, Nomenclature Section in China, especially those that are important for South African botanists Genetics and Microbiology, and mycologists. Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Background The XIXth International Botanical Congress (IBC) was held at the Convention and Exhibition 3Department of Botany, Center and nearby congress facilities of the Sheraton Hotel, in the modern metropolis of Shenzhen, Nelson Mandela University, South Africa Guangdong, southern China, during the week of 23–29 July 2017. The congress is held every six years and venues rotate depending on invitations from hosting countries and institutions. The 4Department of Life Sciences, first IBC was held in 1900 in Paris, France, almost 120 years ago. -
Describing Species
DESCRIBING SPECIES Practical Taxonomic Procedure for Biologists Judith E. Winston COLUMBIA UNIVERSITY PRESS NEW YORK Columbia University Press Publishers Since 1893 New York Chichester, West Sussex Copyright © 1999 Columbia University Press All rights reserved Library of Congress Cataloging-in-Publication Data © Winston, Judith E. Describing species : practical taxonomic procedure for biologists / Judith E. Winston, p. cm. Includes bibliographical references and index. ISBN 0-231-06824-7 (alk. paper)—0-231-06825-5 (pbk.: alk. paper) 1. Biology—Classification. 2. Species. I. Title. QH83.W57 1999 570'.1'2—dc21 99-14019 Casebound editions of Columbia University Press books are printed on permanent and durable acid-free paper. Printed in the United States of America c 10 98765432 p 10 98765432 The Far Side by Gary Larson "I'm one of those species they describe as 'awkward on land." Gary Larson cartoon celebrates species description, an important and still unfinished aspect of taxonomy. THE FAR SIDE © 1988 FARWORKS, INC. Used by permission. All rights reserved. Universal Press Syndicate DESCRIBING SPECIES For my daughter, Eliza, who has grown up (andput up) with this book Contents List of Illustrations xiii List of Tables xvii Preface xix Part One: Introduction 1 CHAPTER 1. INTRODUCTION 3 Describing the Living World 3 Why Is Species Description Necessary? 4 How New Species Are Described 8 Scope and Organization of This Book 12 The Pleasures of Systematics 14 Sources CHAPTER 2. BIOLOGICAL NOMENCLATURE 19 Humans as Taxonomists 19 Biological Nomenclature 21 Folk Taxonomy 23 Binomial Nomenclature 25 Development of Codes of Nomenclature 26 The Current Codes of Nomenclature 50 Future of the Codes 36 Sources 39 Part Two: Recognizing Species 41 CHAPTER 3. -
Gei Et Al. 2020A
A systematic assessment of the occurrence of trace element hyperaccumulation in the flora of New Caledonia Vidiro Gei1, Sandrine Isnard2,3, Peter D. Erskine1, Guillaume Echevarria1,4, Bruno Fogliani5, Tanguy Jaffré2,3, Antony van der Ent1,4* 1Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, St Lucia, QLD 4072, Australia 2botAnique et Modelisation de l’Architecture des Plantes et des végétation (AMAP), Université Montpellier, IRD, CIRAD, CNRS, INRA, Montpellier, France 3botAnique et Modelisation de l’Architecture des Plantes et des végétation (AMAP), IRD, Herbier de Nouvelle-Calédonie, Nouméa, New Caledonia 4Laboratoire Sols et Environnement, Université de Lorraine – INRAE, F54000 Nancy, France 5Équipe ARBOREAL (AgricultuRe BiOdiveRsité Et vALorisation), Institut Agronomique néo-Calédonien (IAC), 98890 Païta, New Caledonia *Corresponding author. E-mail: [email protected] ABSTRACT New Caledonia is a global biodiversity hotspot known for its metal hyperaccumulator plants. X-ray fluorescence technology (XRF) has enabled non-destructive and quantitative determination of elemental concentrations in herbarium specimens from the ultramafic flora of the island. Specimens belonging to six major hyperaccumulator families (Cunoniaceae, Phyllanthaceae, Salicaceae, Sapotaceae, Oncothecaceae and Violaceae) and one to four specimens per species of the remaining ultramafic taxa in the herbarium were measured. XRF scanning included a total of c. 11 200 specimens from 35 orders, 96 families, 281 genera and 1484 species (1620 taxa) and covered 88.5% of the ultramafic flora. The study revealed the existence of 99 nickel hyperaccumulator taxa (65 known previously), 74 manganese hyperaccumulator taxa (11 known previously), eight cobalt hyperaccumulator taxa (two known previously) and four zinc hyperaccumulator taxa (none known previously).