Corallocarpus Epigaeus
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Evolutionary Consequences of Dioecy in Angiosperms: the Effects of Breeding System on Speciation and Extinction Rates
EVOLUTIONARY CONSEQUENCES OF DIOECY IN ANGIOSPERMS: THE EFFECTS OF BREEDING SYSTEM ON SPECIATION AND EXTINCTION RATES by JANA C. HEILBUTH B.Sc, Simon Fraser University, 1996 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE STUDIES (Department of Zoology) We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA July 2001 © Jana Heilbuth, 2001 Wednesday, April 25, 2001 UBC Special Collections - Thesis Authorisation Form Page: 1 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. The University of British Columbia Vancouver, Canada http://www.library.ubc.ca/spcoll/thesauth.html ABSTRACT Dioecy, the breeding system with male and female function on separate individuals, may affect the ability of a lineage to avoid extinction or speciate. Dioecy is a rare breeding system among the angiosperms (approximately 6% of all flowering plants) while hermaphroditism (having male and female function present within each flower) is predominant. Dioecious angiosperms may be rare because the transitions to dioecy have been recent or because dioecious angiosperms experience decreased diversification rates (speciation minus extinction) compared to plants with other breeding systems. -
Phylogenetic Relationships in the Order Cucurbitales and a New Classification of the Gourd Family (Cucurbitaceae)
Schaefer & Renner • Phylogenetic relationships in Cucurbitales TAXON 60 (1) • February 2011: 122–138 TAXONOMY Phylogenetic relationships in the order Cucurbitales and a new classification of the gourd family (Cucurbitaceae) Hanno Schaefer1 & Susanne S. Renner2 1 Harvard University, Department of Organismic and Evolutionary Biology, 22 Divinity Avenue, Cambridge, Massachusetts 02138, U.S.A. 2 University of Munich (LMU), Systematic Botany and Mycology, Menzinger Str. 67, 80638 Munich, Germany Author for correspondence: Hanno Schaefer, [email protected] Abstract We analysed phylogenetic relationships in the order Cucurbitales using 14 DNA regions from the three plant genomes: the mitochondrial nad1 b/c intron and matR gene, the nuclear ribosomal 18S, ITS1-5.8S-ITS2, and 28S genes, and the plastid rbcL, matK, ndhF, atpB, trnL, trnL-trnF, rpl20-rps12, trnS-trnG and trnH-psbA genes, spacers, and introns. The dataset includes 664 ingroup species, representating all but two genera and over 25% of the ca. 2600 species in the order. Maximum likelihood analyses yielded mostly congruent topologies for the datasets from the three genomes. Relationships among the eight families of Cucurbitales were: (Apodanthaceae, Anisophylleaceae, (Cucurbitaceae, ((Coriariaceae, Corynocarpaceae), (Tetramelaceae, (Datiscaceae, Begoniaceae))))). Based on these molecular data and morphological data from the literature, we recircumscribe tribes and genera within Cucurbitaceae and present a more natural classification for this family. Our new system comprises 95 genera in 15 tribes, five of them new: Actinostemmateae, Indofevilleeae, Thladiantheae, Momordiceae, and Siraitieae. Formal naming requires 44 new combinations and two new names in Cucurbitaceae. Keywords Cucurbitoideae; Fevilleoideae; nomenclature; nuclear ribosomal ITS; systematics; tribal classification Supplementary Material Figures S1–S5 are available in the free Electronic Supplement to the online version of this article (http://www.ingentaconnect.com/content/iapt/tax). -
Dispersal Events the Gourd Family (Cucurbitaceae) and Numerous Oversea Gourds Afloat: a Dated Phylogeny Reveals an Asian Origin
Downloaded from rspb.royalsocietypublishing.org on 8 March 2009 Gourds afloat: a dated phylogeny reveals an Asian origin of the gourd family (Cucurbitaceae) and numerous oversea dispersal events Hanno Schaefer, Christoph Heibl and Susanne S Renner Proc. R. Soc. B 2009 276, 843-851 doi: 10.1098/rspb.2008.1447 Supplementary data "Data Supplement" http://rspb.royalsocietypublishing.org/content/suppl/2009/02/20/276.1658.843.DC1.ht ml References This article cites 35 articles, 9 of which can be accessed free http://rspb.royalsocietypublishing.org/content/276/1658/843.full.html#ref-list-1 Subject collections Articles on similar topics can be found in the following collections taxonomy and systematics (58 articles) ecology (380 articles) evolution (450 articles) Email alerting service Receive free email alerts when new articles cite this article - sign up in the box at the top right-hand corner of the article or click here To subscribe to Proc. R. Soc. B go to: http://rspb.royalsocietypublishing.org/subscriptions This journal is © 2009 The Royal Society Downloaded from rspb.royalsocietypublishing.org on 8 March 2009 Proc. R. Soc. B (2009) 276, 843–851 doi:10.1098/rspb.2008.1447 Published online 25 November 2008 Gourds afloat: a dated phylogeny reveals an Asian origin of the gourd family (Cucurbitaceae) and numerous oversea dispersal events Hanno Schaefer*, Christoph Heibl and Susanne S. Renner Systematic Botany, University of Munich, Menzinger Strasse 67, 80638 Munich, Germany Knowing the geographical origin of economically important plants is important for genetic improvement and conservation, but has been slowed by uneven geographical sampling where relatives occur in remote areas of difficult access. -
2320-5407 Int. J. Adv. Res. 8(11), 1146-1155
ISSN: 2320-5407 Int. J. Adv. Res. 8(11), 1146-1155 Journal Homepage: - www.journalijar.com Article DOI: 10.21474/IJAR01/12112 DOI URL: http://dx.doi.org/10.21474/IJAR01/12112 RESEARCH ARTICLE DIVERSITY OF ANGIOSPERM CLIMBER SPECIES IN POINT CALIMERE WILDLIFE AND BIRD SANCTUARY, TAMIL NADU M. Padma Sorna Subramanian1 A. Saravana Ganthi2 and K. Subramonian3 1. Siddha Medicinal Plants Garden, CCRS, Mettur, Salem, Tamil Nadu. 2. Department of Botany, Rani Anna Govt. College for Women, Tirunelveli, Tamil Nadu. 3. Department of Botany, The MDT Hindu College, Tirunelveli, Tamil Nadu. …………………………………………………………………………………………………….... Manuscript Info Abstract ……………………. ……………………………………………………………… Manuscript History Climbers are currently understood to have a range of important Received: 25 September 2020 ecological functions in forest dynamics. Climbers are already Final Accepted: 28 October 2020 recognized as an important group for tropical biodiversity, playing a Published: November 2020 key role in ecosystem level processes and providing resources for pollinators and dispersers. The present study is an attempt to document Key words:- Climbers, Lianas, Point Calimere Wild different climber species and their uses in Point Calimere Wildlife and Life and Birds Sanctuary, Medicinal Birds Sanctuary, Tamil Nadu, India. The present study recorded 53 Uses herbaceous climbers and 21 lianas from all the forests types of Point Calimere Sanctuary, covering 25 families. Considering all climbers and lianas, 40 species are stem twiners, 2 species are branch twiners, 4 are spiny Climbers, 19 species are tendril climbers and 8 species are hook climbers. Most of the lianas are distributed in scrub forests and many climbers are recorded in wet lands. 53 medicinal climbers are recorded in the study area. -
The Cucurbitaceae of India 53 Doi: 10.3897/Phytokeys.20.3948 Checklist Launched to Accelerate Biodiversity Research
A peer-reviewed open-access journal PhytoKeys 20: 53–118 (2013) The Cucurbitaceae of India 53 doi: 10.3897/phytokeys.20.3948 CHECKLIST www.phytokeys.com Launched to accelerate biodiversity research The Cucurbitaceae of India: Accepted names, synonyms, geographic distribution, and information on images and DNA sequences Susanne S. Renner1, Arun K. Pandey2 1 Systematic Botany and Mycology, University of Munich, Menzingerstr. 67, 80638 Munich, Germany 2 Department of Botany, University of Delhi, Delhi-110007, India Corresponding author: S. S. Renner ([email protected]), A. K. Pandey ([email protected]) Academic editor: H. Schaefer | Received 3 September 2012 | Accepted 28 December 2012 | Published 11 March 2013 Citation: Renner SS, Pandey AK (2013) The Cucurbitaceae of India: Accepted names, synonyms, geographic distribution, and information on images and DNA sequences. PhytoKeys 20: 53–118. doi: 10.3897/phytokeys.20.3948 Abstract The most recent critical checklists of the Cucurbitaceae of India are 30 years old. Since then, botanical exploration, online availability of specimen images and taxonomic literature, and molecular-phylogenetic studies have led to modified taxon boundaries and geographic ranges. We present a checklist of the Cu- curbitaceae of India that treats 400 relevant names and provides information on the collecting locations and herbaria for all types. We accept 94 species (10 of them endemic) in 31 genera. For accepted species, we provide their geographic distribution inside and outside India, links to online images of herbarium or living specimens, and information on publicly available DNA sequences to highlight gaps in the current understanding of Indian cucurbit diversity. Of the 94 species, 79% have DNA sequences in GenBank, albeit rarely from Indian material. -
The Seed Atlas of Pakistan-X. Cucurbitaceae
Pak. J. Bot., 47(2): 429-436, 2015. THE SEED ATLAS OF PAKISTAN-X. CUCURBITACEAE RUBINA ABID, DURDANA KANWAL AND M. QAISER Department of Botany, University of Karachi, Karachi-72570, Pakistan Abstract Seed morphological characters of 14 taxa of the family Cucurbitaceae distributed in 6 genera were examined using light and scanning microscopy. Seeds are obovate, oblanceolate, oblong, ovate or orbicular. Size ranges from 4-15 x 2-9mm. It is observed that seed morphology not only provides a beneficial tool for delimitation of taxa at various levels, but it can also be used to assess the phylogenetic relationship among different taxa. Key words: Cucurbitaceae, Seed morphology, Phylogeny, Pakistan. Introduction examined for their morphological characters under stereomicroscope (SMZ800) and scanning electron The family Cucurbitaceae comprises 940 species microscope (JSM-6380A). For scanning electron microscopy distributed in 122 genera in tropical and warm temperate dry seeds were directly mounted on metallic stub using regions of the world (Mabberley, 2008). The family double adhesive tape and coated with gold for a period of 6 Cucurbitaceae has been splitted into two sub families viz., minutes in sputtering chamber and observed under SEM. The Nhandiroboideae and Cucurbitoideae. Moreover, the sub terminology used was in accordance to Berggren (1981) and family Cucurbitoideae is further splitted into 8 tribes viz., Stearn (1983) with slight modifications. The following Melothricae, Jolifficae, Tricosantheae, Benincaseae, characters of seeds were studied: Presence of aril, size, colour, Cucurbiteae, Cyclanthereae and Sicyocae (Jefferey, 2005). shape, surface (testa), and position of hilum (Table. 1). In Pakistan family Cucurbitaceae is represented by 17 genera and 32 species (Nazimuddin & Naqvi, 1984). -
Manju Choudhary Botany.Pdf
i CERTIFICATE I feel great pleasure in certifying that the thesis entitled ‘Ethnobotanical studies of Beer Jhunjhunu Conservation Reserve of Jhunjhunu district of Rajasthan and screening of selected plant species for their antibacterial activity’ by Ms. Manju Chaudhary under my guidance. She has completed the following requirements as per Ph.D. regulations of the University. (a) Course work as per the university rules. (b) Residential requirements of the university (200 days). (c) Regularly submitted annual progress report. (d) Presented her work in the departmental committee. (e) Published/accepted minimum of one research paper in a referred research journal. I recommended the submission of thesis. Date: (Dr. S.K. Shringi) PG Department of Botany Govt. College, Kota, Rajasthan ii ABSTRACT Biodiversity is the term given to the variety of life on Earth. Loss of biodiversity may trigger large unpredictable change in an ecosystem. The creation of protected area network helps to reduce biodiversity loss and provides significant contributions to conservation efforts. Based on floristic diversity and existing threats to their conservation, State Government of Rajasthan declared Beer protected forest of district Jhunjhunu as conservation reserve. The present study area Beer Jhunjhunu Conservation Reserve harbors a rich array of floristic diversity with a large number of ethnomedicinal as well as rare, endemic and threatened plants. During the present study, a total of 453 plant taxa (including variety) belonging to 452 species under 289 genera and 79 families have been recorded from the area. Among these, 350 species were dicots and 101 belonging to monocots and only one species of gymnosperm was recorded. -
Taxonomy and Herbaria and the Kinds of Information They Provide
and health must occur in the context of and sustainability. The Global Network Ao frican B tanical Diversity Network) conserving the environment. For sustain- for Taxonomy, in the form of BioNET- is an initiative aimed at building capac- able development, social and economic INTERNATIONAL was launched in 1993 ity in plant taxonomy in southern Africa. development must happen together with to facilitate the development and growth SABONET’s major achievements and its the conservation of ecosystems. Concerns of taxonomic resources in developing contribution to sustainable development about human demands and the deple- countries. The Global Network focuses on are communicated extensively in the paper tion of biological resources have led to a assisting developing countries to acquire by Huntley et al. al (2002). In summary, concerted effort by countries all over the taxonomic skills and technologies, and SABONET has successfully built a strong world. The past decade saw the birth of to improve collections of organisms and base of botanical researchers, techni- many conventions, the most powerful be- their related knowledge, and in so doing cians and plant information databases ing the Convention on Biological Diversity to become self-reliant in taxonomy. Build- and has helped botanical institutions in (CBD), where signatories accepted the ing this taxonomic support is important southern Africa to become self-sufficient responsibility of inventorying biological for national programmes focusing on the in taxonomy. These institutions are now diversity, and implementing strategies sustainable use of natural resources as a able to support projects that relate to the to preserve it. The Convention calls for means of eradicating poverty. -
Angiosperm Phylogeny Based on 18S/26S Rdna Sequence Data: Constructing a Large Data Set Using Next-Generation Sequence Data Author(S): Vitor H
Angiosperm Phylogeny Based on 18S/26S rDNA Sequence Data: Constructing a Large Data Set Using Next-Generation Sequence Data Author(s): Vitor H. Maia, Matthew A. Gitzendanner, Pamela S. Soltis, Gane Ka-Shu Wong, and Douglas E. Soltis Source: International Journal of Plant Sciences, Vol. 175, No. 6 (July/August 2014), pp. 613- 650 Published by: The University of Chicago Press Stable URL: http://www.jstor.org/stable/10.1086/676675 . Accessed: 02/11/2015 13:34 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. The University of Chicago Press is collaborating with JSTOR to digitize, preserve and extend access to International Journal of Plant Sciences. http://www.jstor.org This content downloaded from 23.235.32.0 on Mon, 2 Nov 2015 13:34:26 PM All use subject to JSTOR Terms and Conditions Int. J. Plant Sci. 175(6):613–650. 2014. ᭧ 2014 by The University of Chicago. All rights reserved. 1058-5893/2014/17506-0001$15.00 DOI: 10.1086/676675 ANGIOSPERM PHYLOGENY BASED ON 18S/26S rDNA SEQUENCE DATA: CONSTRUCTING A LARGE DATA SET USING NEXT-GENERATION SEQUENCE DATA Vitor H. Maia,*,†,‡ Matthew A. -
Further Morphological Evidence for Separating Mukia Arn. from Cucumis L
BIODIVERSITAS ISSN: 1412-033X Volume 20, Number 1, January 2019 E-ISSN: 2085-4722 Pages: 211-217 DOI: 10.13057/biodiv/d200124 Short Communication: Further morphological evidence for separating Mukia Arn. from Cucumis L. MENTARI PUTRI PRATAMI1, TATIK CHIKMAWATI2,, RUGAYAH3 1 Graduate Program in Plant Biology, Department of Biology, Faculty of Mathematics and Natural Sciences, Institut Pertanian Bogor. Jl. Raya Darmaga, Bogor 16680, West Java, Indonesia 2Department of Biology, Faculty of Mathematics and Natural Sciences, Institut Pertanian Bogor. Jl. Raya Darmaga, Bogor 16680, West Java, Indonesia. Tel./Fax.: +62-251-8622833, email: [email protected] 3Herbarium Bogoriense, Botany Division, Biology Research Center, Indonesian Institute of Sciences. Jl. Raya Bogor Km 46, Cibinong, Bogor 16611, West Java, Indonesia Manuscript received: 25 October 2018. Revision accepted: 19 December 2018. Abstract. Pratami, MP Chikmawati T, Rugayah. 2019. Short Communication: Further morphological evidence for separating Mukia Arn. from Cucumis L.. Biodiversitas 20: 211-217. Mukia Arn. is closely related to Cucumis L. based on molecular data, nevertheless, they have high morphological differences resulting in different opinion on taxonomical status of the two genera. Mukia Arn. has many similarities in pollen and leaf anatomical characters to Cucumis L., but both genera differ in seven seed characters, i.e color, shape, size, surface pattern, seed edge, transverse section at seed neck, and the markings of the inner seed coat surface. So, based on seed characteristics, Mukia Arn. is separated from Cucumis L. Keywords: Cucurbitaceae, leaf anatomy, Malesia, pollen, taxonomic status INTRODUCTION into two subfamilies. Subfamily Nhandiroboideae representing a single tribe Zanonieae (Zanonioideae) and Mukia Arn. and Cucumis L. -
Lower Species Richness in Dioecious Clades
vol. 156, no. 3 the american naturalist september 2000 Lower Species Richness in Dioecious Clades Jana C. Heilbuth* Department of Zoology, University of British Columbia, have evolved as a mechanism to reduce inbreeding (Baker Vancouver, British Columbia V6T 1Z4, Canada 1959; Carlquist 1966, 1974; Charlesworth and Charles- worth 1978) and/or to improve resource allocation (Bawa Submitted October 6, 1999; Accepted April 6, 2000 1980; Givnish 1980). Various authors (Baker 1959; Wil- liams 1975) have argued that dioecy is an easier route to outbreeding, both genetically and physiologically, and em- pirical evidence suggests that it is a more ef®cient means abstract: Despite the extensive research on the potential bene®ts of avoiding inbreeding than gametophytic self-incompat- of dioecy to individuals, little is known about the long-term success ibility (Anderson and Stebbins 1984). As well, theoretical of dioecious lineages in relation to their hermaphroditic or mon- oecious relatives. This study reports on the evolutionary success of studies show that plants carrying a mutation conferring worldwide dioecious ¯ora in light of recent phylogenetic work by male or female sterility can be favored in a hermaphroditic performing sister-group comparisons of species richness between population (Charnov 1982) when a division of labor into clades of angiosperms with different breeding systems. Whether this males and females allows each individual to ful®ll its roles analysis is performed at the family or genus level, species richness more ef®ciently. is generally far lower in dioecious taxa when compared to their Despite the many possible advantages of dioecy, dioe- hermaphroditic or monoecious sister taxa. -
Sustainable Development of Delft Island: an Ecological, Socio-Economic and Archaeological Assessment
Occasional Papers of IUCN Sri Lanka No. 14, January 2013 Sustainable Development of Delft Island: An ecological, socio-economic and archaeological assessment S. de A. Goonatilake, S. Ekanayake, T.P. Kumara, D. Liyanapathirana, D.K. Weerakoon and A. Wadugodapitiya International Union for Conservation of Nature, Sri Lanka Country Office Occasional Papers of IUCN Sri Lanka The role of IUCN Sri Lanka embodies the overall mission of the International Union for the Conservation of Nature: to help nations throughout the world to protect and use sustainably their natural resources for the benefit of all their people. In serving this mission, IUCN Sri Lanka aims to contribute towards the development and implementation of appropriate conservation policies, based on scientific information in the field of nature conservation. The Occasional Paper series reports on the outcomes of research and project work conducted by IUCN staff and their collaborators, covering a wide range of subjects related to conservation – from biodiversity assessments to participatory conservation approaches. This objective of the present Occasional Paper series is to share these lessons learnt from the wealth of field experience, amongst a wider audience and to provide scientific information relevant to conservation action. The papers will be kept simple and non-technical. It is intended that the series will contribute towards conservation action and will be used extensively by policy makers, managers of natural resources, researchers, students and the public at large. The occasional papers are published and distributed electronically (http://www.iucn.org). i Occasional Papers of IUCN Sri Lanka No. 14, January 2013 Sustainable Development of Delft Island: An ecological, socio-economic and archaeological assessment S.