1 Assistant Conservation Scientist Genomics & Bioinformatics Chicago
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Aquatic and Wet Marchantiophyta, Order Metzgeriales: Aneuraceae
Glime, J. M. 2021. Aquatic and Wet Marchantiophyta, Order Metzgeriales: Aneuraceae. Chapt. 1-11. In: Glime, J. M. Bryophyte 1-11-1 Ecology. Volume 4. Habitat and Role. Ebook sponsored by Michigan Technological University and the International Association of Bryologists. Last updated 11 April 2021 and available at <http://digitalcommons.mtu.edu/bryophyte-ecology/>. CHAPTER 1-11: AQUATIC AND WET MARCHANTIOPHYTA, ORDER METZGERIALES: ANEURACEAE TABLE OF CONTENTS SUBCLASS METZGERIIDAE ........................................................................................................................................... 1-11-2 Order Metzgeriales............................................................................................................................................................... 1-11-2 Aneuraceae ................................................................................................................................................................... 1-11-2 Aneura .......................................................................................................................................................................... 1-11-2 Aneura maxima ............................................................................................................................................................ 1-11-2 Aneura mirabilis .......................................................................................................................................................... 1-11-7 Aneura pinguis .......................................................................................................................................................... -
Functional Gene Losses Occur with Minimal Size Reduction in the Plastid Genome of the Parasitic Liverwort Aneura Mirabilis
Functional Gene Losses Occur with Minimal Size Reduction in the Plastid Genome of the Parasitic Liverwort Aneura mirabilis Norman J. Wickett,* Yan Zhang, S. Kellon Hansen,à Jessie M. Roper,à Jennifer V. Kuehl,§ Sheila A. Plock, Paul G. Wolf,k Claude W. dePamphilis, Jeffrey L. Boore,§ and Bernard Goffinetà *Department of Ecology and Evolutionary Biology, University of Connecticut; Department of Biology, Penn State University; àGenome Project Solutions, Hercules, California; §Department of Energy Joint Genome Institute and University of California Lawrence Berkeley National Laboratory, Walnut Creek, California; and kDepartment of Biology, Utah State University Aneura mirabilis is a parasitic liverwort that exploits an existing mycorrhizal association between a basidiomycete and a host tree. This unusual liverwort is the only known parasitic seedless land plant with a completely nonphotosynthetic life history. The complete plastid genome of A. mirabilis was sequenced to examine the effect of its nonphotosynthetic life history on plastid genome content. Using a partial genomic fosmid library approach, the genome was sequenced and shown to be 108,007 bp with a structure typical of green plant plastids. Comparisons were made with the plastid genome of Marchantia polymorpha, the only other liverwort plastid sequence available. All ndh genes are either absent or pseudogenes. Five of 15 psb genes are pseudogenes, as are 2 of 6 psa genes and 2 of 6 pet genes. Pseudogenes of cysA, cysT, ccsA, and ycf3 were also detected. The remaining complement of genes present in M. polymorpha is present in the plastid of A. mirabilis with intact open reading frames. All pseudogenes and gene losses co-occur with losses detected in the plastid of the parasitic angiosperm Epifagus virginiana, though the latter has functional gene losses not found in A. -
Bryophyte Ecology Table of Contents
Glime, J. M. 2020. Table of Contents. Bryophyte Ecology. Ebook sponsored by Michigan Technological University 1 and the International Association of Bryologists. Last updated 15 July 2020 and available at <https://digitalcommons.mtu.edu/bryophyte-ecology/>. This file will contain all the volumes, chapters, and headings within chapters to help you find what you want in the book. Once you enter a chapter, there will be a table of contents with clickable page numbers. To search the list, check the upper screen of your pdf reader for a search window or magnifying glass. If there is none, try Ctrl G to open one. TABLE OF CONTENTS BRYOPHYTE ECOLOGY VOLUME 1: PHYSIOLOGICAL ECOLOGY Chapter in Volume 1 1 INTRODUCTION Thinking on a New Scale Adaptations to Land Minimum Size Do Bryophytes Lack Diversity? The "Moss" What's in a Name? Phyla/Divisions Role of Bryology 2 LIFE CYCLES AND MORPHOLOGY 2-1: Meet the Bryophytes Definition of Bryophyte Nomenclature What Makes Bryophytes Unique Who are the Relatives? Two Branches Limitations of Scale Limited by Scale – and No Lignin Limited by Scale – Forced to Be Simple Limited by Scale – Needing to Swim Limited by Scale – and Housing an Embryo Higher Classifications and New Meanings New Meanings for the Term Bryophyte Differences within Bryobiotina 2-2: Life Cycles: Surviving Change The General Bryobiotina Life Cycle Dominant Generation The Life Cycle Life Cycle Controls Generation Time Importance Longevity and Totipotency 2-3: Marchantiophyta Distinguishing Marchantiophyta Elaters Leafy or Thallose? Class -
Downloads/figure(Reversal Cost).Svg 1/1
bioRxiv preprint doi: https://doi.org/10.1101/2021.02.08.430207; this version posted February 17, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-ND 4.0 International license. 1 Living apart if you can – how genetically and developmentally controlled sex has shaped the 2 evolution of liverworts 3 4 Xiaolan He1, Jorge R. Flores1, Yu Sun2, John L. Bowman3 5 6 1.Finnish Museum of Natural History, University of Helsinki, FI-00014, Helsinki, Finland 7 2. Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, Jiangxi 332900, China 8 3. School of Biological Science, Monash University, Melbourne VIC 3800, Australia 9 10 11 12 Abstract 13 Sexual differentiation in bryophytes occurs in the dominant gametophytic generation. Over half of 14 bryophytes are dioicous, and this pattern in liverworts is even more profound as over 70% of 15 species are dioicous. However, the evolutionary mechanisms leading to the prevalence of dioicy 16 and the shifts of sexual systems between dioicy and monoicy have remained poorly known. These 17 essential factors in reproductive biology are explored here in light of phylogenetics combined with 18 evidence of genomic characterization of sex chromosomes and sex-determination, as well as 19 cytology. Our analyses and discussions on liverworts are focused on: (1) ancestry and shifts in 20 sexuality, (2) evolution of sex chromosomes and maintenance of haploid dioicy, and (3) 21 environmental impact on the evolution of monoicism. -
Sites of Importance for Nature Conservation Wales Guidance (Pdf)
Wildlife Sites Guidance Wales A Guide to Develop Local Wildlife Systems in Wales Wildlife Sites Guidance Wales A Guide to Develop Local Wildlife Systems in Wales Foreword The Welsh Assembly Government’s Environment Strategy for Wales, published in May 2006, pays tribute to the intrinsic value of biodiversity – ‘the variety of life on earth’. The Strategy acknowledges the role biodiversity plays, not only in many natural processes, but also in the direct and indirect economic, social, aesthetic, cultural and spiritual benefits that we derive from it. The Strategy also acknowledges that pressures brought about by our own actions and by other factors, such as climate change, have resulted in damage to the biodiversity of Wales and calls for a halt to this loss and for the implementation of measures to bring about a recovery. Local Wildlife Sites provide essential support between and around our internationally and nationally designated nature sites and thus aid our efforts to build a more resilient network for nature in Wales. The Wildlife Sites Guidance derives from the shared knowledge and experience of people and organisations throughout Wales and beyond and provides a common point of reference for the most effective selection of Local Wildlife Sites. I am grateful to the Wales Biodiversity Partnership for developing the Wildlife Sites Guidance. The contribution and co-operation of organisations and individuals across Wales are vital to achieving our biodiversity targets. I hope that you will find the Wildlife Sites Guidance a useful tool in the battle against biodiversity loss and that you will ensure that it is used to its full potential in order to derive maximum benefit for the vitally important and valuable nature in Wales. -
Aneuraceae, Marchantiophytina)
European Journal of Taxonomy 273: 1–26 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2017.273 www.europeanjournaloftaxonomy.eu 2017 · Rabeau L. et al. This work is licensed under a Creative Commons Attribution 3.0 License. DNA Library of Life, research article New insights into the phylogeny and relationships within the worldwide genus Riccardia (Aneuraceae, Marchantiophytina) Lucile RABEAU 1,*, S. Robbert GRADSTEIN 2, Jean-Yves DUBUISSON 3, Martin NEBEL 4, Dietmar QUANDT 5 & Catherine REEB 6 1,2,3,6 Université Pierre et Marie Curie – Sorbonne Universités – Institut de Systématique, Évolution, Biodiversité, ISYEB, UMR 7205, CNRS-MNHN-UPMC-EPHE, Muséum national d’Histoire naturelle, 57 rue Cuvier, CP 39, 75005 Paris, France. 4 Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. 5 Nees-Institut für Biodiversität der Pfl anzen, Rheinische Friedrich-Wilhelms-Universität Bonn, Meckenheimer Allee 170, 53115 Bonn, Germany. * Corresponding author: [email protected] 2 Email: [email protected] 3 Email: [email protected] 4 Email: [email protected] 5 Email: [email protected] 6 Email: [email protected] Abstract. With 280 accepted species, the genus Riccardia S.F.Gray (Aneuraceae) is one of the most speciose genera of simple thalloid liverworts. The current classifi cation of this genus is based on morphological and limited-sampling molecular studies. Very few molecular data are available and a comprehensive view of evolutionary relationships within the genus is still lacking. A phylogeny focusing on relationships within the large genus Riccardia has not been conducted. Here we propose the fi rst worldwide molecular phylogeny of the genus Riccardia, based on Bayesian inference and parsimony ratchet analyses of sequences from three plastid regions (psbA-trnH, rps4, trnL-F). -
The Bryological Times Number 126 November 2008
______________________________________________________________________________________________________ The Bryological Times Number 126 November 2008 Newsletter of the International Association of Bryologists CONTENT IAB News • The IAB-congress 2009 in South Africa: an update ...................................................................................... 2 • Stanley W. Greene Award: call for proposals ............................................................................................... 2 • The IAB seeks new candidates and active collaborators ............................................................................. 2 Personal News ....................................................................................................................................................... 3 Field Research News • Post IAB 2007 conference field trip to the Cameron Highlands ................................................................... 3 Research Reports • Bryolat project ................................................................................................................................................... 5 • Herbarium news from Michigan ...................................................................................................................... 5 Theses in bryology ................................................................................................................................................. 6 Bryological exhibition ........................................................................................................................................... -
Of Liverworts & Hornworts 2011–2012
Phytotaxa 170 (2): 061–085 ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ PHYTOTAXA Copyright © 2014 Magnolia Press Article ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.170.2.1 Early Land Plants Today: Index of Liverworts & Hornworts 2011–2012 LARS SÖDERSTRÖM1, ANDERS HAGBORG2 & MATT VON KONRAT2 1 Department of Biology, Norwegian University of Science and Technology, N-7491, Trondheim, Norway; lars.soderstrom@ ntnu.no 2 Department of Research and Education, The Field Museum, 1400 South Lake Shore Drive, Chicago, IL 60605–2496, U.S.A.;[email protected], [email protected] Abstract A widely accessible list of known plant species is a fundamental requirement for plant conservation and has vast applications. An index of published names of liverworts and hornworts between 2011 and 2012 is provided as part of a continued effort in working toward producing a world checklist of this group. The list includes 25 higher taxa, 154 species, 31 infraspecific taxa, and 17 autonyms for 2011 and 2012, 12 of them are fossils. A few taxa not covered by the earlier indices for 2000–2010 are also included. 75 species and 15 infraspecific taxa are new to science. Key words: Liverworts, hornworts, index, nomenclature Introduction Under the auspices of the Early Land Plants Today project, there has been a strong community-driven effort attempting to address the critical need to synthesize the vast nomenclatural, taxonomic and global distributional data for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) (von Konrat et al. 2010a). These endeavours are critical in providing the foundation to develop a working checklist of liverworts and hornworts worldwide; the first version is projected to be published in 2014. -
(Aneuraceae, Hepaticopsida) in the Iberian Peninsula
J Hallori Bot. Lab. No. 97: 309- 3J6 (Jan. 2(05) MODELLING THE DISTRIBUTION OF CRYPTOTHALLUS MlRABILIS MALMB. (ANEURACEAE, HEPATICOPSIDA) IN THE IBERIAN PENINSULA CECIUA SERGIO', DAVID DRAPER2 AND CE:SAR GARCIA' ABSTRACT . Cryptothallus mirabilis Malmb. exhibits a specialised ecology and is a non-photosyn thetic Iiverwort. This species was first described for Scandinavia and till now was considered a north oceanic species. The discoveries of C. mirabilis in different localities in Portugal are the first reliable records of the species in southern Europe and represent an extension of its geographical range. [n fact, in Portugal C. mirabilis does not seem to be rare in areas with oceanic influence, mainly in wet forestry habitats. It is possibly widespread in the Iberian Peninsula because it is easily overlooked owing to its subterranean growth. The objective of this work is to give new localities which con tribute to an evaluation of its ecological requirements, to the definition of its biogeographical distrib ution in Portugal, and to present a predictive map for the Iberian Peninsula. The aim of the model is to identify the distribution pattern and also some potential places of occurrence in Spain and provide information about the environmental range of the species in order to improve actions for conserva tion. K EY WORDS: Cryptothallus mirabilis, ecology, predictive map, conservation, Iberian Peninsula INTRODUCTION The discoveries of Cryptothallus mirabilis Malmb. in Portugal (Sergio & Seneca 1997, Sergio & Garcia 1999) are the first reliable records of the species in southern Europe and represent an important extension of its geographic range. At that time, owing to our limited experience of the ecology of this species, the dis covery of C. -
New York City Ecoflora
New York City EcoFlora Bryophytes are diminutive plants related by a common ancestor to Algae and forming three distinct evolutionary lineages: Liverworts (Division Marchantiophyta), Mosses (Division Bryophyta), and Hornworts (Division Anthocerotophyta). Like other plants, they make their own food from water and carbon dioxide via photosynthesis, but unlike flowering plants, they lack complex vascular tissue and reproduce by spores, not seeds. The dominant phase of the life-cycle of Bryophytes is the gametophyte phase. This is the result of meiosis in which the genome is halved (haploid) analogous to the production of sperm and egg cells in higher plants and animals. In Bryophytes, the diploid phase (sporophyte) with a double complement of chromosomes is tiny and dependent on the gametophyte. It’s as if human sperm and eggs were the dominant phase of our life-cycle, conspicuous and free-living and the diploid baby (sporophyte) spent its entire short life in the womb. Bryophytes are ecologically important as pioneers of barren surfaces. They are often the first to appear after volcanic eruptions, tree falls, floods and ice scour. They can absorb and retain many times their weight in water and help mitigate sudden downpours. They retain water and release it slowly into the environment where it can be used by other organisms. They contribute to nutrient cycling by trapping and absorbing minerals from water and air. They can form crusts with Lichens on old dunes, helping to stabilize the sand and build soil leading to succession by other plants. They provide niches for other organisms, especially tiny invertebrates such as Snow Fleas who are in turn consumed by larger invertebrates and so on up the food chain. -
The Bryological Times
The Bryological Times Number 111 December 2003 Newsletter of the International Association of Bryologists CONTENT Obituaries • Hyoji Suzuki ............................................................................................................................................................................... 2 • Willem Meyer ..............................................................................................................................................................................2 Training course report • The second regional training course on biodiversity and conservation of bryophytes and lichens in Tropical southeast Asia offered by SEAMEO-BIOTROP of Indonesia ............................................................... 3 Country report • Bryology in Turkey ..................................................................................................................................................................... 4 Book reviews • Manual of Tropical Bryology .................................................................................................................................................... 7 • Guide to the Plants of Central French Guiana: Part 3: Mosses ............................................................................................. 8 • Mosses of Lithuania .................................................................................................................................................................... 9 New publications • Red list of Bryophytes of the G.D. -
2447 Introductions V3.Indd
BRYOATT Attributes of British and Irish Mosses, Liverworts and Hornworts With Information on Native Status, Size, Life Form, Life History, Geography and Habitat M O Hill, C D Preston, S D S Bosanquet & D B Roy NERC Centre for Ecology and Hydrology and Countryside Council for Wales 2007 © NERC Copyright 2007 Designed by Paul Westley, Norwich Printed by The Saxon Print Group, Norwich ISBN 978-1-85531-236-4 The Centre of Ecology and Hydrology (CEH) is one of the Centres and Surveys of the Natural Environment Research Council (NERC). Established in 1994, CEH is a multi-disciplinary environmental research organisation. The Biological Records Centre (BRC) is operated by CEH, and currently based at CEH Monks Wood. BRC is jointly funded by CEH and the Joint Nature Conservation Committee (www.jncc/gov.uk), the latter acting on behalf of the statutory conservation agencies in England, Scotland, Wales and Northern Ireland. CEH and JNCC support BRC as an important component of the National Biodiversity Network. BRC seeks to help naturalists and research biologists to co-ordinate their efforts in studying the occurrence of plants and animals in Britain and Ireland, and to make the results of these studies available to others. For further information, visit www.ceh.ac.uk Cover photograph: Bryophyte-dominated vegetation by a late-lying snow patch at Garbh Uisge Beag, Ben Macdui, July 2007 (courtesy of Gordon Rothero). Published by Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire, PE28 2LS. Copies can be ordered by writing to the above address until Spring 2008; thereafter consult www.ceh.ac.uk Contents Introduction .