Bruguiera Hainesii, a Critically Endangered Mangrove Species, Is a Hybrid Between B

Total Page：16

File Type：pdf, Size：1020Kb

Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. cylindrica and B. gymnorhiza (Rhizophoraceae) ABSTRACT Bruguiera hainesii (Rhizophoraceae) is one of the two Critically Endangered mangrove species listed in the IUCN Red List of Threatened Species. Although the species is vulnerable to extinction, its genetic diversity and the evolutionary relationships with other Bruguiera species are not well understood. Also, intermediate morphological characters imply that the species might be of hybrid origin. To clarify the genetic relationship between B. hainesii and other Bruguiera species, we conducted molecular analyses including all six Bruguiera species using DNA sequences of two nuclear genes (CesA and UNK) and three chloroplast regions (intergenic spacer regions of trnL-trnF, trnS-trnG and atpB-rbcL). For nuclear DNA markers, all nine B. hainesii samples from five populations were heterozygous at both loci, with one allele was shared with B. cylindrica, and the other with B. gymnorhiza. For chloroplast DNA markers, the two haplotypes found in B. hainesii were shared only by B. cylindrica. These results suggested that B. hainesii is a hybrid between B. cylindrica as the maternal parent and B. gymnorhiza as the paternal one. Furthermore, chloroplast DNA haplotypes found in B. hainesii suggest that hybridization has occurred independently in regions where the distribution ranges of the parental species meet. As the IUCN Red List of Threatened Species currently excludes hybrids (except for apomictic plant hybrids), the conservation status of B. hainesii should be reconsidered. Keyword: Mangrove; Hybridization; Endangered species; Genetics .

Copy Link

Recommended publications

Excoecaria Agallocha L
ANNEE : 2015 THESES 2015/ TOU3/ 2020 THESE POUR LE DIPLOME D'ETAT DE DOCTEUR EN PHARMACIE Présentée et soutenue publiquement par ALBINET Lucile Excoecaria agallocha L. Le 16 Mars 2015 Directrice de thèse : VANSTEELANDT Marieke JURY Président : FABRE, Nicolas 1er assesseur : VANSTEELANDT, Marieke 2ème assesseur : AMOUROUX, Noël 1 REMERCIEMENTS Au Président du jury : Mr Fabre, Professeur des Universités à la Faculté des Sciences Pharmaceutiques de Toulouse, je vous remercie de votre disponibilité et d’avoir accepté la présidence de ce jury. Aux membres du jury : Mme Vansteelandt, Maître de Conférences des Universités, et directrice de cette thèse je vous remercie de m’avoir accompagnée dans ce travail et pour votre aide précieuse tout au long de cette thèse. Mr Amouroux, Pharmacien et intervenant à la Faculté de Pharmacie, je vous remercie d’avoir accepté avec spontanéité de faire parti du jury de cette thèse ainsi que pour votre pédagogie tout au long de nos études. A mes parents, qui m’ont toujours encouragée et soutenue. A ma sœur, mon frère, Clau et Jean–Christophe merci pour votre présence et votre soutien. Et comme on dit : « La famille, c’est important la famille ! » A mes amies, Philippine et Sandrine que j’ai eu l’honneur de rencontrer grace à nos études de pharmacie, et dont l’amitié durera encore pour longtemps. Et merci à tous mes amis qui m’accompagnent au quotidien. Enfin, MERCI Rémi pour ton amour et ta grande patience qui, face à cette thèse, ont été mis à rude épreuve mais qui ne t’a pas empêché de vouloir m’épouser ! De tout mon cœur merci.
[Show full text]
Current Status of Mangrove Forests in Singapore
Proceedings of Nature Society, Singapore’s Conference on ‘Nature Conservation for a Sustainable Singapore’ – 16th October 2011. Pg. 99–120. THE CURRENT STATUS OF MANGROVE FORESTS IN SINGAPORE YANG Shufen1, Rachel L. F. LIM1, SHEUE Chiou-Rong2 & Jean W. H. YONG3,4* 1National Biodiversity Centre, National Parks Board, 1 Cluny Road, Singapore 259569. 2Department of Life Sciences, National Chung Hsing University, 250, Kuo Kuang Rd., Taichung 402, Taiwan. 3Department of Civil & Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. 4Singapore University of Technology and Design, 20 Dover Drive, Singapore 138682. (*E-mail: [email protected]) ABSTRACT Even in a small and urbanised country like Singapore, we are still able to find new plant records in our remaining 735 ha of mangrove forests. With only one notable extinction (Brownlowia argentata Kurz), a total of 35 ‘true’ mangrove species can still be found in Singapore. This is half of the world’s total ‘true’ mangrove species recognised by IUCN. The botanical results indicate that Singapore still harbours rich mangrove diversity. The IUCN 'Critically Endangered' mangrove, Bruguiera hainesii C. G. Rogers, was discovered in 2003 as a new record. Thought to be extinct, B. sexangula (Lour.) Poir. trees were re-discovered in 2002 and occur mainly in the back mangrove. In 1999, an uncertain taxon of Ceriops was discovered, and identified as the so-called C. decandra (Griff.) Ding Hou. We later confirmed that the uncertain Ceriops species should be C. zippeliana Blume. Through international collaborative research efforts, the elucidation of the taxonomic identity of Kandelia obovata Sheue, Liu & Yong (the main mangrove of China, Japan, Taiwan and Vietnam) in 2003 was assisted by our local research efforts towards protecting our own Kandelia candel (L.) Druce.
[Show full text]
Comparative Study on Foliar and Petiole Anatomy of the Genus Bruguiera L
Journal of Academia and Industrial Research (JAIR) Volume 5, Issue 7 December 2016 92 ISSN: 2278-5213 RESEARCH ARTICLE Comparative Study on Foliar and Petiole Anatomy of the Genus Bruguiera L. in Mangrove Forest of Kerala S. Surya* and N. Hari Department of Botany, C.M.S. College, Kottayam, Kerala-686001, India [email protected]*, [email protected]; +91 9400094355*, 8547591199 ______________________________________________________________________________________________ Abstract Leaf and petiole anatomical profiling of three species of Bruguiera L. occurring in the mangrove forest of Kerala was investigated in this study. The study aims to search for the stable features marking out Bruguiera species. Anatomical characters in all three taxa showed similarities because of its generic closeness. Three species were distinguished based on the difference in the number of vascular bundles in midrib and petiole, number of palisade layer and type of stomata. Nevertheless the three Bruguiera species can be grouped anatomically based on the type and pattern of sclereids. Brachy sclereids present in all three taxa but the astero sclereids were found only in B. gymnorrhiza. Through this anatomical study, we concluded that all the species have some unique features to withstand extreme environmental habitat. Keywords: Anatomical characters, anticlinal walls, astero sclereids, Bruguiera, environmental habitat. Introduction Bruguiera parviflora has wide distribution in the northern Bruguiera is the largest genus in the Rhizophoraceae parts of Kerala which is not present in Trivandrum, (Hou, 1958; Tomlinson, 1986; Hogarth, 1999; Saenger, Kollam, Alappuzha and Kottayam (Mohandas, 2012). 2002; Sheue, 2003) and all six described Bruguiera Considering the above facts in view, leaf and petiole species belong to the “Indo-Malayan” group of anatomical profiling of three species of Bruguiera L.
[Show full text]
Running Head 'Biology of Mangroves'
BIOLOGY OF MANGROVES AND MANGROVE ECOSYSTEMS 1 Biology of Mangroves and Mangrove Ecosystems ADVANCES IN MARINE BIOLOGY VOL 40: 81-251 (2001) K. Kathiresan1 and B.L. Bingham2 1Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai 608 502, India 2Huxley College of Environmental Studies, Western Washington University, Bellingham, WA 98225, USA e-mail [email protected] (correponding author) 1. Introduction.............................................................................................. 4 1.1. Preface........................................................................................ 4 1.2. Definition ................................................................................... 5 1.3. Global distribution ..................................................................... 5 2. History and Evolution ............................................................................. 10 2.1. Historical background ................................................................ 10 2.2. Evolution.................................................................................... 11 3. Biology of mangroves 3.1. Taxonomy and genetics.............................................................. 12 3.2. Anatomy..................................................................................... 15 3.3. Physiology ................................................................................. 18 3.4. Biochemistry ............................................................................. 20 3.5. Pollination
[Show full text]
Bruguiera Hainesii, a Critically Endangered Mangrove Species, Is a Hybrid Between B
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/303397768 Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. cylindrica and B. gymnorhiza (Rhizophoraceae) Article in Conservation Genetics · May 2016 DOI: 10.1007/s10592-016-0849-y CITATIONS READS 10 1,037 15 authors, including: Jean W H Yong Koji Takayama Swedish University of Agricultural Sciences Museum of Natural and Environmental History, Shizuoka 138 PUBLICATIONS 4,291 CITATIONS 155 PUBLICATIONS 679 CITATIONS SEE PROFILE SEE PROFILE M. Nazre Alison K.S. Wee Universiti Putra Malaysia Guangxi University 47 PUBLICATIONS 439 CITATIONS 25 PUBLICATIONS 252 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Organellar genomics of tropical trees View project Plant Genetic Profiling View project All content following this page was uploaded by Jean W H Yong on 30 July 2016. The user has requested enhancement of the downloaded file. Conserv Genet DOI 10.1007/s10592-016-0849-y RESEARCH ARTICLE Bruguiera hainesii, a critically endangered mangrove species, is a hybrid between B. cylindrica and B. gymnorhiza (Rhizophoraceae) 1 2 3 4 Junya Ono • Jean W. H. Yong • Koji Takayama • Mohd Nazre Bin Saleh • 1,5 1 6 7 Alison K. S. Wee • Takeshi Asakawa • Orlex Baylen Yllano • Severino G. Salmo III • 8 9 10 Monica Suleiman • Nguyen Xuan Tung • Khin Khin Soe • 11 1 Sankararamasubramanian Halasya Meenakshisundaram • Yasuyuki Watano • 12 1,13 Edward L. Webb • Tadashi Kajita Received: 20 November 2015 / Accepted: 3 May 2016 Ó Springer Science+Business Media Dordrecht 2016 Abstract Bruguiera hainesii (Rhizophoraceae) is one of hainesii samples from ﬁve populations were heterozygous at the two Critically Endangered mangrove species listed in the both loci, with one allele was shared with B.
[Show full text]
"True Mangroves" Plant Species Traits
Biodiversity Data Journal 5: e22089 doi: 10.3897/BDJ.5.e22089 Data Paper Dataset of "true mangroves" plant species traits Aline Ferreira Quadros‡‡, Martin Zimmer ‡ Leibniz Centre for Tropical Marine Research, Bremen, Germany Corresponding author: Aline Ferreira Quadros ([email protected]) Academic editor: Luis Cayuela Received: 06 Nov 2017 | Accepted: 29 Nov 2017 | Published: 29 Dec 2017 Citation: Quadros A, Zimmer M (2017) Dataset of "true mangroves" plant species traits. Biodiversity Data Journal 5: e22089. https://doi.org/10.3897/BDJ.5.e22089 Abstract Background Plant traits have been used extensively in ecology. They can be used as proxies for resource-acquisition strategies and facilitate the understanding of community structure and ecosystem functioning. However, many reviews and comparative analysis of plant traits do not include mangroves plants, possibly due to the lack of quantitative information available in a centralised form. New information Here a dataset is presented with 2364 records of traits of "true mangroves" species, gathered from 88 references (published articles, books, theses and dissertations). The dataset contains information on 107 quantitative traits and 18 qualitative traits for 55 species of "true mangroves" (sensu Tomlinson 2016). Most traits refer to components of living trees (mainly leaves), but litter traits were also included. Keywords Mangroves, Rhizophoraceae, leaf traits, plant traits, halophytes © Quadros A, Zimmer M. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2 Quadros A, Zimmer M Introduction The vegetation of mangrove forests is loosely classiﬁed as "true mangroves" or "mangrove associates".
[Show full text]
The Development of Typology Matrixes on Design Patterns Inspired by the Mangroves Species of Sungai Merbok
The Development of Typology Matrixes on Design Patterns Inspired by the Mangroves Species of Sungai Merbok Nurul ‘Ayn Ahmad Sayuti, Universiti Teknologi MARA, Malaysia Mohd Zamri Azizan, Universiti Teknologi MARA, Malaysia Mas Ayu Zainal, Universiti Teknologi MARA, Malaysia Ahmad Fazlan Ahmad Zamri, Universiti Teknologi MARA, Malaysia Abu Hanifa Ab Hamid, Universiti Teknologi MARA, Malaysia The Asian Conference on Arts & Humanities 2019 Official Conference Proceedings Abstract More than 30 species of mangroves have been identified in Sungai Merbok, Kedah, Malaysia and are considered to be the most extensive collection of mangroves species in the world. Because of the profound natural and historical elements, Sungai Merbok is now has been identified as a second natural biosphere in the world and is recognised by the UNESCO. The researchers have found that the mangroves species have potentials to be developed into 2D or 3D design patterns. The information on mangroves species and the images were obtained from the research websites and books. Typology matrixes are designed to categorise the mangroves species, and a variety of design patterns can be seen in the matrixes developed for this study. All of the patterns developed inspired by the mangroves physical features (roots, leaves, fruits, flowers, skin texture or other parts). Rough sketches on idea developments or thumbnails were developed and documented in the matrixes. It is estimated around 265 basic patterns have been developed for this study. Moreover, the design patterns can be developed further and be the basis for more design works development. Keyword: mangroves species, design, pattern, idea development, inspiration iafor The International Academic Forum www.iafor.org Introduction The Sungai Merbok in Sungai Petani, Kedah not only known for its beautiful scenery but a diverse ecosystem where it has been recognised as the that has more than 30 mangroves species.
[Show full text]
Ericaceae in Malesia: Vicariance Biogeography, Terrane Tectonics and Ecology
311 Ericaceae in Malesia: vicariance biogeography, terrane tectonics and ecology Michael Heads Abstract Heads, Michael (Science Faculty, University of Goroka, PO Box 1078, Goroka, Papua New Guinea. Current address: Biology Department, University of the South Pacific, P.O. Box 1168, Suva, Fiji. Email: [email protected]) 2003. Ericaceae in Malesia: vicariance biogeography, terrane tectonics and ecology. Telopea 10(1): 311–449. The Ericaceae are cosmopolitan but the main clades have well-marked centres of diversity and endemism in different parts of the world. Erica and its relatives, the heaths, are mainly in South Africa, while their sister group, Rhododendron and relatives, has centres of diversity in N Burma/SW China and New Guinea, giving an Indian Ocean affinity. The Vaccinioideae are largely Pacific-based, and epacrids are mainly in Australasia. The different centres, and trans-Indian, trans-Pacific and trans-Atlantic Ocean disjunctions all indicate origin by vicariance. The different main massings are reflected in the different distributions of the subfamilies within Malesia. With respect to plant architecture, in Rhododendron inflorescence bracts and leaves are very different. Erica and relatives with the ‘ericoid’ habit have similar leaves and bracts, and the individual plants may be homologous with inflorescences of Rhododendron. Furthermore, in the ericoids the ‘inflorescence-plant’ has also been largely sterilised, leaving shoots with mainly just bracts, and flowers restricted to distal parts of the shoot. The epacrids are also ‘inflorescence-plants’ with foliage comprised of ‘bracts’, but their sister group, the Vaccinioideae, have dimorphic foliage (leaves and bracts). In Malesian Ericaceae, the four large genera and the family as a whole have most species in the 1500–2000 m altitudinal belt, lower than is often thought and within the range of sweet potato cultivation.
[Show full text]
The Bruguiera (Rhizophoraceae) Species in the Mangroves of Singapore, Especially on the New Record and the Rediscovery
Taiwania, 50(4): 251-260, 2005 The Bruguiera (Rhizophoraceae) Species in the Mangroves of Singapore, Especially on the New Record and the Rediscovery Chiou-Rong Sheue(1,4), Jean W. H. Yong(2) and Yuen-Po Yang(3) (Manuscript received 17 May, 2005; accepted 21 July, 2005) ABSTRACT: We reported here the new record of Bruguiera hainesii C. G. Rogers, and the rediscovery of an extinct species, Bruguiera sexangula (Lour.) Poir., in the mangroves of Singapore. To simplify the process of identifying all the five Bruguiera species in Singapore, a colour plate illustrating the calyx structures (across different development stages) and diagnostic features of the five Bruguiera species were provided. A diagnostic key to the five Bruguiera species was also provided, with updated descriptions for the two species. As it was difficult to identify the different Bruguiera species solely on the basis of vegetative structures, we therefore suggest that the series or numbers of colleters (finger-like glandular structures inside the base of stipules) could be an aid for identifying members of Rhizophoraceae especially in the absence of reproductive structures. KEY WORDS: Mangroves, Rhizophoraceae, Singapore, colleters, Bruguiera hainesii, Bruguiera sexangula. INTRODUCTION Bruguiera is the largest genus in the Rhizophoraceae (Hou, 1958; Tomlinson, 1986; Hogarth, 1999; Saenger, 2002; Sheue, 2003) and all six described Bruguiera species belong to the “Indo-Malayan” group of mangroves, which extend from East Africa to Australia and the West Pacific. With the exception of Bruguiera exaristata which is found in Northern Australia and Southern New Guinea (Hou, 1958), the remaining five Bruguiera species could be found in Malaysia (Watson, 1928; Wyatt-Smith, 1953; Kochummen, 1989) while four Bruguiera species were previously recorded in Singapore (Keng, 1990; Turner and Yong, 1999).
[Show full text]
Sistem Informasi Vegetasi Mangrove Berbasis Web Di Kota Langsa
SISTEM INFORMASI VEGETASI MANGROVE BERBASIS WEB DI KOTA LANGSA SKRIPSI AMANDA PUTRI OCTAVIANI 140308041 PROGRAM STUDI KETEKNIKAN PERTANIAN FAKULTAS PERTANIAN UNIVERSITAS SUMATERA UTARA 2019 Universitas Sumatera Utara SISTEM INFORMASI VEGETASI MANGROVE BERBASIS WEB DI KOTA LANGSA SKRIPSI OLEH : AMANDA PUTRI OCTAVIANI 140308041/KETEKNIKAN PERTANIAN Skripsi sebagai salah satu syarat untuk dapat memperoleh gelar sarjana di Program Studi Keteknikan Pertanian Fakultas Pertanian Universitas Sumatera Utara PROGRAM STUDI KETEKNIKAN PERTANIAN FAKULTAS PERTANIAN UNIVERSITAS SUMATERA UTARA 2019 Universitas Sumatera Utara Universitas Sumatera Utara Panitia Penguji Skripsi Achwil Putra Munir, STP, M.Si Dr. Ir. Edi Susanto, M.Si Adian Rindang, STP, M.Si Dr. Taufik Rizaldi, STP, MP Universitas Sumatera Utara ABSTRAK AMANDA PUTRI OCTAVIANI: Sistem Informasi Vegetasi Mangrove Berbasis Web Di Kota Langsa dibimbing oleh ACHWIL PUTRA MUNIR. Penelitian ini bertujuan untuk merancang dan membangun sistem informasi berbasis web pada hutan mangrove di Kota Langsa agar membantu manajemen dalam mengumpulkan data, menyediakan data, dan mengelola data vegetasi hutan mangrove serta, memudahkan wisatawan dalam mencari informasi tentang vegetasi hutan mangrove di Kota Langsa. Hasil penelitian menunjukan bahwa data vegetasi kurang akurat, tidak adanya klasifikasi vegetasi hutan mangrove, data gambar vegetasi tidak lengkap, dan kurang teliti dalam penyimpanan data sehingga diperlukan sistem informasi berbasis web di kawasan hutan mangrove Kota Langsa agar dapat mempermudah
[Show full text]
Bruguiera Hainesii (Haines's Orange Mangrove)
Consultation Document on Listing Eligibility and Conservation Actions Bruguiera hainesii (Haines's orange mangrove) You are invited to provide your views and supporting reasons related to: 1) the eligibility of Bruguiera hainesii (Haines's orange mangrove) for inclusion on the EPBC Act threatened species list in the Critically Endangered category; and 2) the necessary conservation actions for the above species. Evidence provided by experts, stakeholders and the general public are welcome. Responses can be provided by any interested person. Anyone may nominate a native species, ecological community or threatening process for listing under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) or for a transfer of an item already on the list to a new listing category. The Threatened Species Scientific Committee (the Committee) undertakes the assessment of species to determine eligibility for inclusion in the list of threatened species and provides its recommendation to the Australian Government Minister for the Environment and Energy. Responses are to be provided in writing either by email to: [email protected] or by mail to: The Director Species Information and Policy Section Biodiversity Conservation Division Department of the Environment and Energy PO Box 787 Canberra ACT 2601 Responses are required to be submitted by 20 July 2018 Contents of this information package Page General background information about listing threatened species 2 Information about this consultation process 2 Draft information about the Haines's orange mangrove and its eligibility for listing 4 Conservation actions for the species 9 References cited 10 Collective list of questions – your views 11 Bruguiera hainesii (Haines's orange mangrove) consultation document Page 1 of 16 General background information about listing threatened species The Australian Government helps protect species at risk of extinction by listing them as threatened under Part 13 of the EPBC Act.
[Show full text]
Biology-Of-Mangroves
3.4. Biology of Mangroves Prof. K. Kathiresan Centre of Advanced Study in Marine Biology Annamalai University Taxonomy angroves are not a single genetic group but representing a large M variety of plant families that are adapted to tropical intertidal environment. Tomlinson (1986) recognized three groups of mangroves: (i) major mangrove species;(ii) minor mangrove species; and, (iii) mangrove associates. The minor mangrove species are less conspicuous elements of the vegetation and rarely form pure stands. The major species are the strict or true mangroves, recognized by most or all of the following features: 1. They occur exclusively in mangal. 2. They play a major role in the structure of the community and have the ability to form pure stands. 3. They have morphological specializations – especially aerial roots and specialized mechanisms of gas exchange. 4. They have physiological mechanisms for salt exclusion and/or excretion. 5. They have viviparous reproduction. 6. They are taxonomically isolated from terrestrial relatives. The strict mangroves are separated from their nearest relatives at least at the generic level, and often at the sub‐family or family level. According to Tomlinson (1986), the major mangroves include 34 species in 9 genera and 5 families. The minor species contribute 20 species in 11 genera and 11 families. Thus a total of 54 mangrove species in 20 genera and 16 families are present globally. Duke (1992), on the other hand, identified 69 mangrove species belonging to 26 genera in 20 families. One family falls in the fern division (Polypodiophyta); the remainders are in the Magnoliophyta (angiosperms). Families containing only mangroves are the Aegialitidaceae, Avicenniaceae, Nypaceae and Pellicieraceae.
[Show full text]