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LinneanSoceity.gif (6900 bytes)   The Linnean Society of London

Plant species-level systematics: patterns, processes and new applications
A 3-day international symposium from 13 to 15 November 2002 in Leiden, The Netherlands

Timetable
This programme will be updated when more information becomes available.

Beamers, laptops and slide projectors will be available.

Tuesday 12 November 2002
17.00-18.30 Registration and welcome drinks
Wednesday 13 November 2002
Opening session
Location: Room 01
09.30-09.35 Pieter Baas (NHN) - Welcome
09.35-09.40 Douwe Breimer (Leiden University) - Opening
09.40-09.45 Freek Bakker (Organising committee) - Announcements
Session 1: Plant species radiations
Location: Room 01
09.45-10.10 Tom Givnish - Putting the "adaptive" into "adaptive radiation": divergence in light regime and photosynthetic adaptations in the Hawaiian lobeliads
10.10-10.35 Vincent Savolainen - Evolutionary radiations in plants, case studies in South Africa and South America
10.35-11.00 Tim Barraclough - The causes of speciation in plant lineages

Coffee
11.30-11.55 Peter Linder - Speciation in the Cape flora: a macro-evolutionary perspective
11.55-12.20 Freek Bakker - Radiation in Cape Pelargonium
12.20-12.45 Peter van Dijk - Constraints in the radiation of apomicts

Lunch/Posters

Contributed papers
Location: Room 01 Room 06 Room 07
14.00-14.20 Specht - Species level phylogenetics in the monocot family Costaceae: rapid radiation and floral evolution

Wieringa - Bikinia and Tetraberlinia (Fabaceae): old sisters or recent Siamese twins?

 Barker - Internal Transcribed Spacer sequence diversity in two species of Asteraceae
14.22-14.42 Pelser - Elucidating species- level phylogenetic relationships in Senecio sect. Jacobaea (Asteraceae) with AFLP and DNA sequence data Hovenkamp - Molecular phylogeny of Amorphophallus (Araceae) Samuel - Phylogenetic analysis of Hypochaeris and related genera (Asteraceae, Lactuceae)
14.44-15.04 Coleman - Dispersal and speciation in Mediterranean Senecio Van der Ham - Amorphophallus (Araceae): the pollen point of view Tremetsberger - The usefulness of AFLPs in species delimitation: taxonomic status and population structure of Hypochaeris salzmanniana (Asteraceae, Lactuceae) of the Iberian Peninsula

Tea
15.35-15.55 Bradley - Speciation patterns of Peperomia in Polynesia Mols - Identifying groups in the monophyletic genus Miliusa and polyphyletic genus Polyalthia Wen - Evolution of the ginseng genus: geographic disjunctions, rapid radiations, and polyploidy
15.57-16.17 Murray - Speciation in Kunzea (Myrtaceae) with low levels of sequence divergence Famà - Diversification of the genus Caulerpa (Ulvophyceae): a comparison between cpDNA tufA sequence data and chloroplast ultrastructure Cowan - Apomixis, occassional sex, hybridisation; what's happening with Sorbus?
16.19-16.39 Powell - Radiations in the oncidioid orchids Müllner - Phylogeny of southeast Asian and Pacific Aglaia (Meliaceae) inferred from ITS and rps16 sequences Schulman - Plant speciation modes in Amazonia with special reference to the Melastomataceae
17.00 Transportation by conference busses to Leiden City Hall
17.15-18.30 Reception at Leiden City Hall (Stadhuisplein 1)
Thursday 14 November 2002
Session 2: Molecular evolution in time and space
Location: Room 01
09.00-09.25 Barbara Schaal — Gene genealogies and phylogeography in plant populations
09.25-09.50 Joachim Kadereit — The temporal course of Quaternary plant speciation
09.50-10.15 Jeanine Olsen — Separating population structure from population history in the fucoid seaweed Ascophyllum nodosum
10.15-10.40 Lars Chatrou — Species level phylogenetics in Neotropical Annonaceae

Coffee
11.10-11.35 Niklas Wikström — Angiosperm divergence times: congruence and incongruence between fossils and sequence divergence estimates
11.35-12.00 Barbara Gravendeel — Molecular dating of Coelogyninae (Orchidaceae)
12.00-12.25 Hubert Turner — The application of Bayesian techniques in biogeography

Lunch/Posters
Session 3: Identification and diagnostics
Location: Room 01
14.00-14.25 Konrad Bachmann — Molecular diagnostics at and below the species level
14.25-14.50 Ben Vosman— Domain directed profiling; a glance at molecular evolution
14.50-15.15 Sjaak van Heusden— Molecular markers and cytogenetical studies in Allium

Tea

Contributed papers
Location: Room 01 Room 06 Room 07
15.45-16.05 Eurlings - Development of species-specific markers in Aquilaria (Thymelaeaceae) Zuccarello – Phylogeography of cosmopolitan red algae Britto - Sculpture pattern of wing petals in Legumes of the Eastern Ghats of South India
16.07-16.27 Lubega - Cowpea germplasm for disease and pest resistance Vanderpoorten - Interpreting phylogenetic relationships in Amblystegium (Bryopsida) by reconciling adenosine-kinease gene trees Drabkova - Phylogeny of the Juncaceae with special emphasis on Luzula DC. and Juncus L.: a preliminary assessment inferred from plastome sequence data
16.29-16.49 Stuessy - Molecular relationships in the endemic vascular plants of Ullung Island, Korea Van der Velde - Molecular markers reveal cryptic species and reproductive isolation within Polytrichum commune s.l Quandt - Evolution of non-coding cpDNA
16.51-17.11 Fay - Towards a phylogeny of Conostylis - a species-rich genus of Haemodoraceae (Western Australia) Yatabe – Recognition of cryptic species in Asplenium nidus complex (Aspleniaceae) by analyses of molecular data, ecological comparison, and crossing experiments Bailey – Characterization of angiosperm nrDNA polymorphism: paralogy and pseudogenes
17.13-17.33 Jakubowski - Molecular biogeography and evolution of Nertera (Rubiaceae) Tribsch - Intraspecific diversifications in alpine plants due to the ice ages - some examples from the European Alps using AFLP-fingerprinting Carine - Evolution of Convolvulus L. in the Mediterranean and Macaronesia
19.30 Conference dinner at "De Markt" (Botermarkt 20-22)
Friday 15 November 2002
Session 4: Multiple genomes: plant hybrids, polyploids, and systematics
Location: Room 01
09.30-09.55 Jonathan Wendel — Genes, jeans and genomes: insights from the cotton genus
09.55-10.20 Peter van Tienderen — Origins and history of polyploid species: what DNA variation can and can not tell us
10.20-10.45 Hans-Jürgen Bandelt — Detecting and visualizing reticulate patterns in molecular data

Coffee
11.15-11.40 Jeffrey Bennetzen — Modes, rates and mechanisms of local genomic change that mark different lineages in the Poaceae
11.40-12.05 Johannes Vogel — The ephemeral nature of polyploids: patterns and processes of evolution in European Asplenium
12.05-12.30 Mark Chase — Allopolyploid evolution in Dactylorhiza (Orchidaceae) and Nicotiana (Solanaceae): two case studies demonstrate the importance of knowing parents and ploidy levels
12.30-12.45 Engler award presentation

Lunch/Posters

Contributed papers
Location: Room 01 Room 06 Room 07
14.15-14.35 Wisseman - Hybridization acts as unique patterns of plant evolution - a multilevel approach to hybridization analysis Shepherd - Polyploidy and hybridization in the Australian Salicornioideae Den Bakker – Is Leccinum (Boletaceae) a speciose genus?
14.37-14.57 Milne - Species boundaries maintained by strong extrinsic selection at the second hybrid generation Fehrer - Evolution, hybridization, and clonal distribution of apo- and amphimictic Pilosella species in a Central European mountain range Nyberg-Berglund – Inheritance and genetic variation of enzymatic markers in Cerastium alpinum
14.59-15.19 Van den Berg - Polyploid speciation in wild potatoes (Solanum sect. Petota) Såstad - Polyploid speciation in bryophytes Marhold - Taxonomy and evolution of polyploid complexes in Cardamine (Brassicaceae) in Europe
15.21-15.41 Clarkson - When a phylogenetic tree is not a phylogeny - allopolyploidy in Nicotiana (Solanaceae) Cianchi - Speciation by hybridization in European orchids: evidence by nuclear and chloroplast markers Greimler - Reticulate relationships between two widespread taxa in the genus Gentianella: G. austriaca and G. germanica
15.43-16.15 Mark Chase Summary Session
16.15 Closure

Posters
Posters will be on display during the entire symposium.

Name Title
Aagaard Allozyme - and morphological characteristics of a diploid-tetraploid hybrid zone
Barcenas Systematics of Grusonia (Opuntioideae, Cactaceae)
Bernhardt Genetic differentiation and phylogeographic distribution patterns in East Austrian
Bertram Islands in an arid world:  investigations on populations of Gibbaeum cryptopodium (Aizoaceae)
Bureš Nuclear DNA content variation of Eleocharis palustris agg. in Europe
Chapman Hybridisation and Introgression in Mediterranean Senecio (Asteraceae)
Cho Discrimination of Cnidium Rhizome from Ligusticum chuanxiong and Cnidium officinale using PCR-mediated RFLP
Cotrim Molecular methods to address population genetic differentiation of the Portuguese species of Ophrys (Orchidaceae)
Devos Research of chloroplast DNA markers by PCR-RFLP in the genus Dactylorhiza (Orchidaceae)
Ducarme Morphological and genetical identity of Rhinanthus individuals in mixed populations
Durães A Macaronesian fern in Portugal relictual or introduced?
Grundmann Phylogeography of the submeditteranean bryophyte Pleurochaete squarrosa (Pottiaceae) in Europe
Hardy Species-level phylogenetics in African Restionaceae
Hunt Polyploid formation and establishment in sympatry with ancestral diploid taxa
Ickert-Bond Timing the evolutionary divergence of crown group Gnetales integration of molecular and fossil data
Jang Evolutionary patterns in Gentianella section Gentianella
Keßler Tree diversity of different land use systems at Lore Lindu National Park
Kingston Using molecular markers to study the historical biogeography of the "Lusitanian" Ericaceae in the Irish flora
Kita Phylogeny of the genus Saussurea (Asteraceae) in East Asia
Kolnik Morphological and karyological diversity of Arabidopsis (Brassicaceae) in the Carpathians and Eastern Alps
Kucera Towards a monograph of the genus Cardamine (Brassicaceae)
Lihova Polyploid evolution in Cardamine amara (Brassicaceae)
Longhi-Wagner Studies on Brazilian grasses and sedges
Meister Phylogeographical studies in monsoonal woodland refugia of the coastal mountains in the Southern Arabian Peninsula
Van der Merwe Towards a phylogeny of Eugenia (Myrtaceae) cpDNA variation of species from southern Africa and Mauritius
Pakravan Seed protein analysis as a tool for taxonomy of Alcea (Malvaceae) in Iran
Perny Taxonomy and evolution of Cardamine raphanifolia (Brassicaceae)
Robba Patterns of variation in Cynara a preliminary molecular study
Rudolph Don't discard microsatellite markers that don't produce amplification products in individual species! An example of genome analysis in amphidiploid Brassica napus
Selvi Radiation in Nonea Medik. (Boraginaceae) preliminary evidence from morphology, karyology and DNA sequence variation
Smarda Cytological and morphological differentiation of Central European taxa of Festuca ser. Psammophilae M. Pawlus
Thiede Phylogenetics of the Aizoaceae and its correlation with life strategies and photosynthetic types
Vašut Genetic fine-maping of apomixis elements in Taraxacum officinale auct.
Vašut Taraxacum sect. Erythrosperma in Western Pannonia: are the Taraxacum Floras of W Pannonia and W Europe the same?
Van Waveren Palaeogeographic affinity of the Permian Jambi flora from Sumatra
Weising Polymorphic chloroplast microsatellites in Macaranga tools to analyse the phylogeography of an ant plant
Van Welzen The relationships of Sauropus (Euphorbiaceae), a call for a molecular phylogenetic analysis
Wisseman Posthybridogenic evolution of nuclear ribosomal ITS-sequences

Meals
Morning and afternoon tea and coffee, as well as lunch are provided each day and the conference dinner is on Thursday the 14th of November 2002. Other meals are not provided.

Selected topics
This symposium seeks to review current insights from the fields of molecular biosystematics and speciation, focussing on the following selected topics of particular importance:


 Plant species radiations


This phenomenon has attracted considerable interest over the past decade, focussing on aspects such as ecological vs. phyletic radiation, associated key innovations, pollination and floral biology and, more recently, timing of radiation events based on DNA sequence data.

Molecular evolution in time and space


Molecular evolution results in patterns of variation that can be used to study population structure, reconstruct biogeographic histories or to identify taxic relationships. Here emphasis will be put on timing (nodes in) molecular phylogenies, and on analysis and interpretation of molecular biogeographic patterns. How important are these approaches at the plant species level?

Multiple genomes: plant hybrids, polyploids and systematics


There is a growing body of evidence that hybridisation and polyploidisation are generally occurring phenomena in plants, sometimes regarded as among the most important processes driving speciation. Current understanding of hybridisation and polyploidisation is addressed in the light of recent developments in genomics, as well as its implications for plant systematics.

Identification and diagnostics


This field has undergone considerable progress with new genomic tools coming available. Reason to look at some new exciting applications in genetic recognition of plants.
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Last update on Friday November 08, 2002 by P.B. Pelser