More information:

Brown, C.E., Veldkornet, D.A., Boatwright, J.S., Engelbrecht, A. and Rajkaran, A. 2019. The phylogeography and genetic diversity of the salt marsh species Salicornia tegetaria (S.Steffen, L.Mucina and G.Kadereit) Piirainen and G.Kadereit, endemic to South Africa, Namibia and Mozambique. South African Journal of Botany, 123: 270-277


Description:

The phylogeography and genetic diversity of the salt marsh species Salicornia tegetaria (S.Steffen, L.Mucina and G.Kadereit) Piirainen and G.Kadereit, endemic to South Africa, Namibia and Mozambique.

Summary / Notes:

This study assesses the genetic structure and gene flow of the salt marsh species Salicornia tegetaria between estuaries and tests three hypotheses: (1) that the relocation of estuaries on a shallow continental shelf during the last glacial maximum created a historical biogeographic barrier, the exact location of which we attempt to pin-point, (2) that there is connectivity and thus gene flow at present between estuaries, and (3) that some estuaries have higher genetic diversity and are therefore of higher conservation priority. DNA samples were collected from 17 estuaries and used to create haplotype networks. Analyses of molecular variance, isolation by distance, selective neutrality and genetic distance between estuaries were also conducted. Eleven ITS ribotypes, one found exclusively between Olifants and Breede Estuaries, and eight rpS16 haplotypes were recovered with a dominant haplotype occurring in most estuaries. The remaining ribotypes and haplotypes from ITS and rpS16 sequences were unique, predominantly on the South and East Coast. A high amount of gene flow and an increase in genetic differentiation from west to east was found. The topography of the continental shelf and diverging ocean currents did provide a historical geographic barrier during the last glacial maximum approximately 18,000 years ago. A high degree of connectivity between estuaries allows for the exchange of genetic material in the direction of the ocean current, but long distance dispersal is also suggested. Repeated habitat fragmentation, most likely due to fluctuating sea levels, contributed to a higher amount of rare haplotypes on the South and East Coast. This study provides baseline information on a salt marsh species for which there is a paucity of data that is widely distributed in an ecosystem that is likely to be heavily impacted by climate change. Keywords: Chloroplast DNA, Glasswort, Nuclear DNA, rpS16ITS, Salt marsh, Samphire, Sea level.

Year: 2019

Type: Journal Article

URL: https://doi.org/10.1016/j.sajb.2019.03.007


Top 50 related results:

You may also be interested in the following items which are on a similar or related topic, listed in order of similarity.

Results per page:

Results: 1 to 50 of 50

To FILTER: Use the pale green row to filter the results on this page. Type in text or select from the year list.

Rows matching filter(s): All
What is this row? 
Data titleYearOriginFile typeDownloadkml/kmz
Simmons, R.E., Griffin, M., Griffin, R.E., Marais, E. and Kolberg, H. 1998. Endemism in Namibia: patterns, processes and predictions. Biodiversity and Conservation, 7(4): 513-530
  » More info & related results
1998Bibliography compiled by Bird Database ProjectJournal Article754 kb pdf
Preview
Loots, S. 2006. Saving our succulent plant diversity. A national survey of Adenia pechuelli and Lithops ruschiorum. Spotlight on Agriculture, 102. Ministry of Agriculture, Water and Forestry
  » More info & related results
2006Ministry of Agriculture, Water and ForestryReport742 kb pdf
Preview
Swanepoel, W. 2009. Euphorbia ohiva (Euphorbiaceae), a new species from Namibia and Angola. South African Journal of Botany, 75(2): 249-255
  » More info & related results
2009 Journal Article
Whitaker, C., Pammenter, N.W., and Berjak, P. 2008. Infection of the cones and seeds of Welwitschia mirabilis by Aspergillus niger var. phoenicis in the Namib-Naukluft Park. South African Journal of Botany, 74(1): 41–50
  » More info & related results
2008 Journal Article
Woitke, M., Wolf, R., Hartung, W. and Heilmeier, H. 2006. Flower morphology of the resurrection plant Chamaegigas intrepidus Dinter and some of its potential pollinators. Flora, 201(4): 281-286
  » More info & related results
2006 Journal Article
Heilmeier, H. and Hartung, W. 2010. Hundert Jahre unerschrockener Zwergriese. Die Auferstehungspflanze Chamaegigas intrepidus Dinter und ihre Anpassung an ihren extremen Standort in Zentralnamibia. Dinteria, 31: 18-37
  » More info & related results
2009Namibia Scientific SocietyJournal Article762 kb pdf
Preview
Roth-Nebelsick, A., Ebner, M., Miranda, T., Gottschalk, V., Voigt, D., Gorb, S., Stegmaier, T., Sarsour, J., Linke, M. and Konrad, W. 2012. Leaf surface structures enable the endemic Namib desert grass Stipagrostis sabulicola to irrigate itself with fog water. Journal of the Royal Society Interface, published online 22 February 2012
  » More info & related results
2012 Journal Article1.21 mb pdf
Preview
Williamson, G. 1997. Preliminary account of the floristic zones of the Sperregebiet (Protected Diamond Area) in southwest Namibia. Dinteria, 25: 1-68
  » More info & related results
1997Namibia Scientific SocietyJournal Article5.17 mb pdf
Preview
Datson, P.M., Murray, B.G. and Steiner, K.E. 2008. Climate and the evolution of annual/perennial life-histories in Nemesia (Scrophulariaceae). Plant Systematics and Evolution, 270(1-2): 39-57
  » More info & related results
1998 Journal Article
von Willert, D.J. 1994. Welwitschia mirabilis Hook. fil. — das Überlebenswunder der Namibwüste. Naturwissenschaften, 81(10): 430-442
  » More info & related results
1994 Journal Article
Heilmeier, H. and Hartung, W. 2011. Chamaegigas intrepidus DINTER: An Aquatic Poikilohydric Angiosperm that Is Perfectly Adapted to Its Complex and Extreme Environmental Conditions. In: Plant Desiccation Tolerance - Ecological Studies, 215: 233-251
  » More info & related results
2011 Book, Book Section, Booklet
Klopatek, J.M. and Stock, W.D. 1994. Partitioning of nutrients in Acanthosicyos horridus, a keystone endemic species in the Namib Desert. Journal of Arid Environments, 26(3): 233–240
  » More info & related results
1994 Journal Article
Klaassen, E.S. and Kwembeya, E.G. (eds.). 2013. A Checklist of Namibian Indigenous and Naturalised Plants. Occasional Contributions No. 5, National Botanical Research Institute, Windhoek, Namibia
  » More info & related results
2013 Report3.39 mb pdf
Preview
Cooper-Driver, G.A., Wagner, C. and Kolberg, H. 2000. Patterns of Aspergillus niger var. phoenicis (Corda) Al-Musallam infection in Namibian populations of Welwitschia mirabilis Hook.f. Journal of Arid Environments, 46(2): 181–198
  » More info & related results
2000 Journal Article
Liu, M., van Wyk, B-E. and Tilney, P.M. 2007. A revision of the genus Marlothiella (Apiaceae). South African Journal of Botany, 73(2): 208–213
  » More info & related results
2007 Journal Article
Swanepoel, W. 2009. Euphorbia otjingandu (Euphorbiaceae), a new species from the Kaokoveld, Namibia. South African Journal of Botany, 75(3): 497–504
  » More info & related results
2009 Journal Article
Swanepoel, W. and Kolberg, H. 2011. Abrus kaokoensis (Leguminosae-Papilionoideae-Abreae), a new species from Namibia. South African Journal of Botany, 77(3): 613–617
  » More info & related results
2011 Journal Article
Cron, G.V. 2013. Bertilia - A new monotypic genus in the Senecioneae (Asteraceae) from South Africa. South African Journal of Botany, 88: 10–16
  » More info & related results
2013 Journal Article
Swanepoel, W. 2008. Commiphora otjihipana (Burseraceae), a new species from the Kaokoveld, Namibia. South African Journal of Botany, 74(4): 623–628
  » More info & related results
2008 Journal Article
Swanepoel, W. 2008. Ceraria kuneneana (Didiereaceae/Portulacaceae), a new species from the Kaokoveld, Namibia. South African Journal of Botany, 74(1): 71–75
  » More info & related results
2008 Journal Article
Jacobson, N., Jacobson, P., van Jaarsveld, E. and Jacobson, K. 2014. Field evidence from Namibia does not support the designation of Angolan and Namibian subspecies of Welwitschia mirabilis Hook. Transactions of the Royal Society of South Africa, Published online: 28 Aug 2014
  » More info & related results
2014 Journal Article
Carafa, A.M., Ponzi, R. and Pizzolongo, F. 1996. Some aspects of microsporogenesis of Welwitschia mirabilis Hook. Giornale botanico italiano, 130(2-3): 557-565
  » More info & related results
1996 Journal Article
Swanepoel, W., le Roux, M.M., Wojciechowski, M.F. and van Wyk, A.E. 2015. Oberholzeria (Fabaceae subfam. Faboideae), a New Monotypic Legume Genus from Namibia. PLOS ONE, 10(3): e0122080
  » More info & related results
2015 Journal Article1.57 mb pdf
Preview
Marlin, D., Nicolson, S.W., Yusuf, A.A., Stevenson, P.C., Heyman, H.M. and Krüger, K. 2014. The only african Wild Tobacco, Nicotiana africana: Alkaloid content and the effect of herbivory. PLoS ONE 9(7): e102661
  » More info & related results
2014 Journal Article555 kb pdf
Preview
Shuuya, T., Berner, J., Krüger, G., Wassenaar, T. and Curtis, B. 2016. Understanding the spatial and temporal patterns of photosynthetic efficiency of Welwitschia mirabilis in the central Namib Desert. South African Journal of Botany, 103: 348–349
  » More info & related results
2016 Journal Article
Berner, J.M., Shuuya, T., Wassenaar, T. and Krüger, G.H.J. 2015. Spatial distribution in the photosynthetic efficiency of Welwitschia in the central Namib dessert. South African Journal of Botany, 98: 206
  » More info & related results
2015 Journal Article
Di Salvator, M., Carafa, A.M. and Carratù, G. 2016. Environmental requirements for germination of dispersion units of Welwitschia mirabilis Hook. fil. Journal of Arid Environments, 125: 116–121
  » More info & related results
2016 Journal Article
Bornman, C.H., Botha, C.E.J. and Nash, L.J. 1973. Welwitschia mirabilis: observations on movement of water and assimilates under föhn and fog conditions. Madoqua, 2(2): 25-31
  » More info & related results
1973 Journal Article950 kb pdf
Preview
Bornman, C.H., Elsworthy, J.A., Butler, V. and Botha, C.E.J. 1970. Welwitschia mirabilis: observations on general habit, seed, seedling, and leaf characteristics. Madoqua, 2(1): 53-66
  » More info & related results
1970 Journal Article2.42 mb pdf
Preview
Gibbs Russell, G.E. 1984. Analysis of the size and composition of the southern African flora. Bothalia, 15(3/4): 613-629
  » More info & related results
1984 Journal Article3.98 mb pdf
Preview
Cowling, R. and Hilton, T.C. 1994. Patterns of plant diversity and endemism in southern Africa: an overview. In: Huntley, B.J. (ed). Botanical diversity in southern Africa. Strelitzia, 1: 31-52
  » More info & related results
1994 Book, Book Section, Booklet1.63 mb pdf
Preview
Lubbe, L.G., van Eck, J.A.J., van Rooyen, B. and van Lill, C. 2010. Chemical control of Acacia nebrownii at two localities in southern Namibia with the arboricide Molopo GG 200P pellets. Spotlight on Agriculture, 119. Ministry of Agriculture, Water and Forestry
  » More info & related results
2010Ministry of Agriculture, Water and ForestryReport1.09 mb pdf
Preview
Bester, F.V. 2005. Herbicidal control of poison-leaf/Gifblaar Dichapetalum cymosum. Spotlight on Agriculture, 91. Ministry of Agriculture, Water and Forestry
  » More info & related results
2005Ministry of Agriculture, Water and ForestryReport2.55 mb pdf
Preview
Berkeley, A., Thomas, A.D. and Dougill, A.J. 2005. Cyanobacterial soil crusts and woody shrub canopies in Kalahari rangelands. African Journal of Ecology, 43(2): 137-145
  » More info & related results
2005 Journal Article
Burke, A. 2008. The effect of topsoil treatment on the recovery of rocky plain and outcrop plant communities in Namibia. Journal of Arid Environments, 72(8): 1531-1536
  » More info & related results
2008 Journal Article
Whitaker, C., Berjak, P. and Pammenter, N.W. 2008. Abnormal morphology of the embryo and seedlings of the Welwitschia mirabilibis, and some observations on seed-associated fungi. South African Journal of Botany, 74: 338-340
  » More info & related results
2008 Journal Article
Dinter, I. and Haas, K. 2008. Epicuticular wax and anatomical features of Arthraerua leubnitziae (Kuntze) Schinz (Amaranthaceae) related to the ecological conditions in the Namib Desert. Dinteria, 30: 1-18
  » More info & related results
2008Namibia Scientific SocietyJournal Article1.76 mb pdf
Preview
van Wyk, G., van Laar, A. and Theron, J.M. 2001. Yield potential of selected Eucalyptus genetic stock on the sandy soils of the South African Cape West Coast. Southern African Forestry Journal, 191: 9-20
  » More info & related results
2001 Journal Article
Bruyns, P.V. 2000. Phylogeny and Biogeography of the Stapeliads. Plant Systematics and Evolution, 221(3-4): 227-244
  » More info & related results
2000 Journal Article
Giess, W. 1968. A short report on the vegetation of the Namib coastal area from Swakopmund to Cape Frio. Dinteria, 1: 13-29
  » More info & related results
1968Namibia Scientific SocietyJournal Article2.08 mb pdf
Preview
Bamford, M.K. 2004. Diversity of the Woody Vegetation of Gondwanan Southern Africa. Gondwana Research, 7(1): 153–164
  » More info & related results
2004 Journal Article
Burke, A. and Mannheimer, C. 2004. The Sperrgebiet - a Diversity Hotspot of Desert Plants in: Desert Plants, 19-22
  » More info & related results
2004 Book, Book Section, Booklet1.9 mb pdf
Preview
Klaassen, E.S., Kwembeya, E.G. and Maass, E. 2009. A taxonomic revision of the genus Pentatrichia (Asteraceae). South African Journal of Botany, 75(1): 153–164
  » More info & related results
2009 Journal Article
Burger, S.J. 1974. Ontkieming-, voeding- en ontblaringstudies op Anthephora pubescens Nees. Universiteit van Pretoria
  » More info & related results
1974 Thesis
Albuquerque, S., Brummitt, R.K. and Figueiredo, E. 2009. Typification of names based on the Angolan collections of Friedrich Welwitsch. Taxon, 58(2): 641–646
  » More info & related results
2009 Journal Article312 kb pdf
Preview
van der Walt, J.J.A. 1973. A new species of Commiphora from the Kaokoveld (South West Africa). Dinteria, 9: 23-28
  » More info & related results
1973Namibia Scientific SocietyJournal Article789 kb pdf
Preview
Lensing, J.E. 1980. Leaf blade epidermal anatomy of 39 monocotyledon species from South West Africa. Madoqua, 12(2): 71-122
  » More info & related results
1980 Journal Article11.68 mb pdf
Preview
Veste, M., Gembler, K. and Jürgens, N. 2004. Ionen- und Wasserhaushalt von Brownanthus pseudoschlichtianus (Aizoaceae) im Richtersveld (Sukkulenten-Karoo, Südafrika). Biodiversity and Ecology, 2: 127-132
  » More info & related results
2004 Journal Article389 kb pdf
Preview
Chapter 3. Biodiversity of marine habitats - 3.4 Overview of Namibian marine biodiversity. In: Biological Diversity in Namibia: A Country Study. Ed. P Barnard. pp. 204. Namibian National Biodiversity Task Force, Windhoek
  » More info & related results
1998 Book, Book Section, Booklet1.91 mb pdf
Preview
Hilton-Taylor, C. 1996. Red Data List of southern African plants. 1. corrections and additions. Bothalia, 26(2): 177-182
  » More info & related results
1996 Journal Article1.1 mb pdf
Preview

» Links to useful free software for working with shapefiles, kml and kmz files, pdf files and more.