Molecular Phylogenetic Trees with Reconstructed Shifts in Geographic Distribution and Flowering Patterns (Flowering Durations and Flowering Midpoint) Indicated
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Vicariance, Climate Change, Anatomy and Phylogeny of Restionaceae
Botanical Journal of the Linnean Society (2000), 134: 159–177. With 12 figures doi:10.1006/bojl.2000.0368, available online at http://www.idealibrary.com on Under the microscope: plant anatomy and systematics. Edited by P. J. Rudall and P. Gasson Vicariance, climate change, anatomy and phylogeny of Restionaceae H. P. LINDER FLS Bolus Herbarium, University of Cape Town, Rondebosch 7701, South Africa Cutler suggested almost 30 years ago that there was convergent evolution between African and Australian Restionaceae in the distinctive culm anatomical features of Restionaceae. This was based on his interpretation of the homologies of the anatomical features, and these are here tested against a ‘supertree’ phylogeny, based on three separate phylogenies. The first is based on morphology and includes all genera; the other two are based on molecular sequences from the chloroplast genome; one covers the African genera, and the other the Australian genera. This analysis corroborates Cutler’s interpretation of convergent evolution between African and Australian Restionaceae. However, it indicates that for the Australian genera, the evolutionary pathway of the culm anatomy is much more complex than originally thought. In the most likely scenario, the ancestral Restionaceae have protective cells derived from the chlorenchyma. These persist in African Restionaceae, but are soon lost in Australian Restionaceae. Pillar cells and sclerenchyma ribs evolve early in the diversification of Australian Restionaceae, but are secondarily lost numerous times. In some of the reduction cases, the result is a very simple culm anatomy, which Cutler had interpreted as a primitively simple culm type, while in other cases it appears as if the functions of the ribs and pillars may have been taken over by a new structure, protective cells developed from epidermal, rather than chlorenchyma, cells. -
Plant DNA Barcoding -- Advances, Applications & Limits
Plant DNA barcoding -- Advances, applications & limits Sean Graham University of British Columbia Funding provided by: Plant DNA barcoding -- Advances, applications & limits CO-AUTHORS: Prasad R. Kesanakurti; Aron J. Fazekas; Diana M. Percy; Kevin S. Burgess; Jeffery M Saarela; Steven G. Newmaster; Brian C. Husband; Mehrdad Hajibabaei; Spencer C. H. Barrett Root project: Prasad R. Kesanakurti; Aron J. Fazekas; Kevin S. Burgess Grasses & Willows: Diana Percy; Jeffery Saarela Institutions: UBC; U. Guelph, U. Toronto, Canadian Museum of Nature Overview Choosing a multi-locus barcoding system Are plants harder to barcode than animals? -- CBOL Plant Working Group (PNAS 2009) -- Fazekas & al., 2008 (PLoS ONE 2008) -- Fazekas & al. 2009 (Mol. Ecol. Resources 2009) Plant DNA barcoding studies -- Poaceae & Salix of British Columbia, Canada -- Eco-applications: Below-ground ecology PLANT DIVERSITY LAND PLANTS • c. 400,000 species VASCULAR PLANTS • > 350,000 species • c. 13,888 genera • c. 511 families Pennisi (2007) Science 318: 190-191 Plant working group (Sept 2008) Core loci (CBOL): rbcL+matK (2 locus) (plus suppl. loci) CBOL Plant working group (PNAS 2009) What about the barcoding gap? -- Ideally: Intraspecific < Interspecific variation Plant genus: Animal genus: Viburnum Artibeus Intra- Inter- Genetic distance (K2P) What about the barcoding gap? Ideally -- -- Intraspecific < Interspecific variation -- Gene-tree monophyly tracks species boundaries = Mutual (reciprocal) monophyly Samples of -- Species A Species B Observed monophyly fraction -
A Phytosociological Study of the Cape Fynbos and Other Vegetation at Jonkershoek, Stellenbosch by M
Bothalia, 10, 4: 599-614 A Phytosociological Study of the Cape Fynbos and other Vegetation at Jonkershoek, Stellenbosch by M. J. A. Werger,* F. J. Krugerf and H. C. Taylor J A b s t r a c t The Braun-Blanquet phytosociological method was tested in the complex Fynbos vegetation of the South-western Cape Region of South Africa. In the Swartboschkloof Nature Reserve, Jonkers- hoek, the Fynbos, riverine scrub and forest vegetation was classified preliminarily into eight com munities, which are described floristically and related to habitat. The results hold promise, and the possibilities of classifying the Cape Fynbos in a formal phytosociological system are discussed. I ntroduction The Braun-Blanquet phytosociological method commonly used in Europe has remained relatively unknown in Southern Africa. Possible reasons for this are language difficulties, the need for more general, rather than more detailed information on the vegetation, and the general non-acceptance of the method by English and American plant ecologists. For many years the only source of information in the English-speaking world was Fuller & Conard’s (1932) authorised translation of Braun-Blanquet’s first edition of Pflanzensoziologie (1928), a work that omitted certain important details of the phytosociological technique. More detailed German works of the phytosociological school were largely inaccessible (for example Ellenberg, 1956; Braun-Blanquet, 1951. 1964). In recent years an English evaluation of the method was given by Poore (1955, 1956), although his main criticisms were shown by Moore (1962) to be largely unfounded. Becking (1957) reviewed the phytosociological school and its concepts, and Kiichler (1967) translated the tabulation techniques from Ellenberg (1956).1 Originally, nearly all vegetation surveys undertaken in Southern Africa were on a physiognomic or on a non-formal descriptive basis, with the exception of Acocks (1953) who used his own floristic technique to construct a system of veld types. -
Nuclear Genes, Matk and the Phylogeny of the Poales
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2018 Nuclear genes, matK and the phylogeny of the Poales Hochbach, Anne ; Linder, H Peter ; Röser, Martin Abstract: Phylogenetic relationships within the monocot order Poales have been well studied, but sev- eral unrelated questions remain. These include the relationships among the basal families in the order, family delimitations within the restiid clade, and the search for nuclear single-copy gene loci to test the relationships based on chloroplast loci. To this end two nuclear loci (PhyB, Topo6) were explored both at the ordinal level, and within the Bromeliaceae and the restiid clade. First, a plastid reference tree was inferred based on matK, using 140 taxa covering all APG IV families of Poales, and analyzed using parsimony, maximum likelihood and Bayesian methods. The trees inferred from matK closely approach the published phylogeny based on whole-plastome sequencing. Of the two nuclear loci, Topo6 supported a congruent, but much less resolved phylogeny. By contrast, PhyB indicated different phylo- genetic relationships, with, inter alia, Mayacaceae and Typhaceae sister to Poaceae, and Flagellariaceae in a basally branching position within the Poales. Within the restiid clade the differences between the three markers appear less serious. The Anarthria clade is first diverging in all analyses, followed by Restionoideae, Sporadanthoideae, Centrolepidoideae and Leptocarpoideae in the matK and Topo6 data, but in the PhyB data Centrolepidoideae diverges next, followed by a paraphyletic Restionoideae with a clade consisting of the monophyletic Sporadanthoideae and Leptocarpoideae nested within them. The Bromeliaceae phylogeny obtained from Topo6 is insufficiently sampled to make reliable statements, but indicates a good starting point for further investigations. -
The Role of Overstorey Proteoid Shrubs In
THE ROLE OF OVERSTOREY PROTEOID SHRUBS IN MAINTAINING SPECIES RICHNESS IN A SOUTHERN CAPE MOUNTAIN FYNBOS COMMUNITY by Johannes Hendrik Jacobus Vlok Submitted in fulfillment of the academic requirements for the degree of . Master of Science in the Department of Botany, University of Natal Pietermaritzburg 1996 ii ABSTRACT ~ This study was conducted to determine if, and how, over storey proteoid shrubs affect the species richness of a southern Cape mountain fynbos community. Protea eximia, ~ lorifolia and ~ repens were the dominant over storey shrubs in the community studied. The percentage canopy cover and density of over storey protea shrubs before a fire were regressed against the a-diversity of under storey species after a fire, for spatial scales ranging · from 1 - 100m2. High canopy cover percentages (~ 50%) and high densities (~ 30 plants per 100m2) of over storey proteas before a fire enriched the a-diversity levels of under storey species after a fire. The spatial scale at which a-diversity was measured affected results. The number of understorey species at a site, where overstorey proteas were absent for several fire cycles, was compared with those where over storey proteas persisted. The number of understorey species was least where the over storey proteas were lacking for several fire-cycles, but results also depended on the spatial scale at which a diversity was measured. The basal cover percentage and density of sprouting understorey species of two sites, burned at several short (6 year) fire-cycles and where over storey proteas were lacking, were compared with those of an adjacent site which was not burned for 28 years and where the over storey proteas persisted. -
Evolutionary Drivers of Temporal and Spatial Host Use Patterns in Restio Leafhoppers Cephalelini (Cicadellidae)
Evolutionary drivers of temporal and spatial host use patterns in restio leafhoppers Cephalelini (Cicadellidae) By Willem Johannes Augustyn Thesis presented in fulfilment of the requirements for the degree of Doctor of Philosophy in the Faculty of Science at Stellenbosch University Promoters: Allan George Ellis and Bruce Anderson December 2015 1 Stellenbosch University https://scholar.sun.ac.za Declaration By submitting this thesis/dissertation electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Copyright © 2015 Stellenbosch University All rights reserved 2 Stellenbosch University https://scholar.sun.ac.za Abstract Understanding how divergent selection results in the evolution of reproductive isolation (i.e. speciation) is an important goal in evolutionary biology. Populations of herbivorous insects using different host plant species can experience divergent selection from multiple selective pressures which can rapidly lead to speciation. Restio leafhoppers are a group of herbivorous insect species occurring within the Cape Floristic Region (CFR) of South Africa. They are specialised on different plant species in the Restionaceae family. Throughout my thesis I investigated how bottom- up (i.e. plant chemistry/morphology of host plant species) and top-down (i.e. predation and competition) factors drive specialisation and divergence in restio leafhoppers. I also investigated interspecific competition as an important determinant of restio leafhopper community structure. -
Plant ID – Danie Miller Trail
Plant ID – Danie Miller trail Amaryllidaceae Brunsvigia orientalis Amaryllidaceae Haemanthus sp Anacardiaceae Heeria argentea Anacardiaceae Rhus angustifolia Anacardiaceae Rhus cuneifolia Anacardiaceae Rhus glauca Anacardiaceae Rhus lucida Anacardiaceae Rhus rosmarinifolia Anacardiaceae Rhus scytophylla Anacardiaceae Rhus tomentosa Apocynaceae Cysticapnos vesicaria Araliaceae Centella macrocarpa Asparagaceae Asparagus rubicundus Asphodelaceae Bulbine annua Asteraceae Arctotis acaulis Asteraceae Berkheya armata Asteraceae Berkheya barbata Asteraceae Chrysanthemoides monilifera Asteraceae Cullumia squarrosa Asteraceae Elytropappus glandulosus Asteraceae Felicia fruticosa Asteraceae Gymnodiscus capillaris Asteraceae Hymenolepis parviflora Asteraceae Metalasia muricata Asteraceae Osteospermum ciliatum Asteraceae Osteospermum spinosum Asteraceae Othonna digitata Asteraceae Othonna quinquedentata Asteraceae Phaenocoma prolifera Asteraceae Senecio elegans Asteraceae Senecio pterophorus # Asteraceae Stoebe cinerea Boraginaceae Lobostemon sp Brassicaceae Heliophila africana Bruniaceae Berzelia abrotanoides Campanulaceae Lobelia comosa Campanulaceae Lobelia coronopifolia Celastraceae Cassine peragua Celastraceae Maytenus oleoides Celastraceae Putterlickia pyracantha Commelinaceae Commelina africana Crassulaceae Crassula fascicularis Ebenaceae Diospyros glabra Ericaceae Erica imbricata Euphorbiaceae Clutia alaternoides Euphorbiaceae Euphorbia genistoides Euphorbiaceae Euphorbia tuberosa Fabaceae Acacia cyclops # Fabaceae Acacia elata # Fabaceae Acacia -
Structure and Alpha Biodiversity of Major Plant Communities in South Africa, a Close Biogeographical Relation with Australia
Journal of Environment and Ecology ISSN 2157-6092 2014, Vol. 5, No. 2 Structure and Alpha Biodiversity of Major Plant Communities in South Africa, a Close Biogeographical Relation with Australia Raymond L. Specht (Corresponding author) Emeritus Professor of Botany, The University of Queensland, Brisbane, QLD 4072, Australia E-mail: [email protected] Eugene J. Moll Department of Biodiversity and Conservation Biology, University of the Western Cape, Bellville, South Africa Received: June 30, 2014 Accepted: July 13, 2014 Published: October 14, 2014 doi:10.5296/jee.v5i2.6446 URL: http://dx.doi.org/10.5296/jee.v5i2.6446 Abstract During the short season of annual shoot growth, Foliage Projective Covers (FPCs) in both overstorey and understorey strata, coupled with leaf attributes (Leaf Specific Weight, Leaf Area), are determined by aerodynamic fluxes flowing over and through the plant community. These parameters determined the Evaporative Coefficient — the monthly ratio of actual to potential evapotranspiration per mm of available soil moisture. Maximal FPC is produced in habitats supplied with optimal soil moisture during this short season of shoot growth. Vertical growth of foliage shoots — the number of leaves per shoot and internode lengths — is determined in relation with available soil water and soil nutrients (especially phosphorus and nitrogen ions) during this seasonal growth. Ambient temperature is similarly concerned. The Leaf Area Index (area of all leaves per hectare) determines the interception of solar radiation — and hence net photosynthesis per hectare per annum. This energy-fixation by overstorey foliage determines the yearly growth of the producer, consumer and decomposer sections of the ecosystem. In turn, the biodiversity (number of species per hectare) of producers and resident consumers is determined. -
A New Subfamilial and Tribal Classification of Restionaceae (Poales)
Telopea 12(3) 333–345 A new subfamilial and tribal classification of Restionaceae (Poales) Barbara G. Briggs1 and H. Peter Linder2 1Botanic Gardens Trust Sydney, Mrs Macquaries Road, Sydney NSW 2000, Australia. Email: [email protected] 2Institute of Systematic Botany, University of Zurich, Zollikerrstrasse 107, CH-8008 Zurich, Switzerland Email: [email protected] Abstract Restionoideae Link, with the newly described Sporadanthoideae and Leptocarpoideae, represent major clades of Restionaceae distinguished by analyses of chloroplast DNA data. These subfamilies are supported by features of morphology, culm anatomy, pollen and phytochemistry. Sporadanthoideae occur in Australia and New Zealand, Leptocarpoideae principally in Australia but with representatives also in New Zealand, New Guinea, Aru Islands, Malesia, Hainan Island and Chile, while Restionoideae are in sub-Saharan Africa and Madagascar. Two tribes, Restioneae Bartl. and Willdenowieae Mast. are recognised within Restionoideae, but their circumscriptions are very different from those of the tribes previously recognised within African Restionaceae. The relationship of Centrolepidaceae to Restionaceae remains unresolved, as sister group or embedded within the latter, but there is some support for Centrolepidaceae embedded within Australian Restionaceae and sister to Leptocarpoideae. This highly distinctive clade may be recognised as subfamily Centrolepidoideae Burnett if included within Restionaceae. Tribe Haplantherae Benth. & Hook. f. has the same circumscription as Restionaceae, as currently recognised, and Restio Rottb. is designated as the lectotype of this tribal name. Introduction Restionaceae have been the subject of much detailed morphological, anatomical and evolutionary study but lack a classification of major infrafamilial groups that is consistent with current phylogenetic inferences. Relevant data have come from morphological studies (Linder 1984, 1985; Meney & Pate 1999; Linder et al. -
View Preprint
A peer-reviewed version of this preprint was published in PeerJ on 21 February 2017. View the peer-reviewed version (peerj.com/articles/2984), which is the preferred citable publication unless you specifically need to cite this preprint. Treurnicht M, Colville JF, Joppa LN, Huyser O, Manning J. 2017. Counting complete? Finalising the plant inventory of a global biodiversity hotspot. PeerJ 5:e2984 https://doi.org/10.7717/peerj.2984 Counting Complete? Finalising the plant inventory of a global biodiversity hotspot Martina Treurnicht Corresp., 1, 2, 3 , Jonathan F Colville 4, 5 , Lucas N Joppa 6 , Onno Huyser 7 , John Manning 8, 9 1 Conservation Ecology and Entomology, University of Stellenbosch, Stellenbosch, Western Cape, South Africa 2 Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany 3 South African Environmental Observation Network Fynbos Node, Cape Town, Western Cape, South Africa 4 Kirstenbosch Research Centre, South African National Biodiversity Institute, Cape Town, Western Cape, South Africa 5 Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Cape Town, Western Cape, South Africa 6 Computational Ecology, Microsoft Research, Cambridge, United Kingdom 7 Centre for Biodiversity Conservation, Kirstenbosch Botanical Gardens, Table Mountain Fund (WWF-SA), Cape Town, Western Cape, South Africa 8 Compton Herbarium, South African National Biodiversity Institute, Cape Town, Western Cape, South Africa 9 Research Centre for Plant Growth and Development, University of KwaZulu-Natal, Pietermaritzburg, KwaZulu-Natal, South Africa Corresponding Author: Martina Treurnicht Email address: [email protected] The Cape Floristic Region – the world’s smallest, but third richest hotspot – experienced sustained levels of taxonomic effort and exploration for almost three centuries resulting in a near-complete plant species inventory. -
Ceratocaryum Pulchrum, a New Restioid from the Bredasdorp Plains
222 S. -Afr.Tydskr.Plantk. 1995,61(4): 222 - 225 Ceratocaryum pulchrum, a new restioid from the Bredasdorp plains H.P. Linder Bolus Herbarium. University of Cape Town, Rondebosch. 7700 Republic of South Africa Rece ll'ed 29 November 1994; re\'lsed J May 1995 Ceratocaryum pulchrum Under, a new species of Restionaceae from the Western Cape region, is described. It is syntopic with C. argenteum, and a phylogenetic analysis of the genus is performed to show that G argenteum is the sister-species of the new C. pUlchrum. The analysis shows that In the other major clade in the genus the species do not co-occur, but are separated on altitudinal and climatic gradients. Although the mode of speciation of C. pulchrum is obscure, the coexistence of C. pulchrum and its sister C. argenteum may be mediated by different flowering times and different fire-survival modes. Ceratocaryum pulchrum linder, 'n nuwe spesie in die Reslionaceae van die Wes·Kaap Provin sie, word beskryl. Oil word in dieselfde habitat as C. argenteum aangetref, en 'n filogeneliese analise van die genus is gedoen, wat toon dat C. argenteum die susterspesie van the nuwe C. pulchrum is. Die analise wys dat in the ander hoofklade van die genus die spesie nie sa am voorkom nie, maar dat hulle op hoe en klimatiese gradienle verskil. Hoewel die spesiasie-metode van C. pulchrum nie duideJik is nie, kan die samevoorkoms van C. pulchrum en sy susterspesie C. argenteum verduidelik word deur verskiUende blomtye, en onderskeie brand-oorlewensmetodes. Keywords: Ceratocaryum. phylogeny, Restionaceae, speciation . Introduction .Hml cu lmis solidis, a C argenceum culmis brevis, ab ambo bus spiculis solitaris recedit. -
Classification, Evolution, and Phylogeny of the Families of Monocotyledons
SMITHSONIAN CONTRIBUTIONS TO BOTANY NUMBER 71 Classification, Evolution, and Phylogeny of the Families of Monocotyledons Aaron Goldberg SMITHSONUN INSTITUTION PRESS Washington, D.C. 1989 ABSTRACT Goldberg, Aaron. Classification, Evolution, and Phylogeny of the Families of Monocotyle- dons. Smithsonian Contributions to Botany, number 71, 74 pages, 41 figures, 2 tables, 1 diagram, 1989.-To some extent classification is subjective. Taxonomists differ in the relative importance they ascribe to particular characters and in the degree of difference between related taxa they deem sufficient to constitute family or ordinal rank. About 250 monocot family names have been published. Those who have attempted an overview of the system at the family level and above in the last quarter century recognize between 45 and 103 monocot families in 14 to 38 orders. I accept 57 families in 18 orders. In Table 1 I give my ordinal allocation of the families and that of 11 recent authors to indicate where there is agreement and where there are differences to be resolved. I have constructed a dendrogram to suggest relationships and degree of advancement of the orders. I have written concise, uniform descriptions of all the families of monocots emphasizing those characters that show trends between families or occur in more than one family. Each family is illustrated by analytical drawings of the flower, fruit, seed, and usually inflorescence. Several species are usually used to show the range of major variation within families and trends toward related families. Monocots and dicots have existed concurrently for most of their history, have been subjected to many of the same ecological pressures, and consequently show similar evolutionary trends.