Dr. Thelma Barbara

Lab Manager and Research Assistant
(also affiliated with Division of Structural and Functional Botany)

e-mail: thelma.barbara[@]univie.ac.at
phone: +43 1 4277 54143
address: Department of Botany and Biodiversity Research
University of Vienna, Faculty of Life Sciences
Rennweg 14, Room 209
A-1030 Vienna, Austria

Research Interests

I am interested in speciation, more specifically in the genetic basis of ecological species differences. I am currently investigating the evolution of species barriers in northern hemisphere trees of the genus Populus and in tropical bromeliads adapted to Inselbergs (granitic rock outcrops).

Publications

Lexer C, Marthaler F, Humbert S, Barbará T, de la Harpe M, Bossolini E, Paris M, Martinelli G & Versieux LM (2016). Gene flow and diversification in a species complex of Alcantarea inselberg bromeliads. Bot J. Linnean Society 181:505-520.

Caseys C, Stölting KN, Barbará T, González-Martínez SC & Lexer C (2015) Patterns of genetic diversity and differentiation in resistance gene clusters of two hybridizing European Populus species. Tree Genetics & Genomes 11:1-12

Jovita C. Yesilyurt, Thelma Barbará, Harald Schneider, Stephen Russell, Alastair Culham and Mary Gibby (2015) Identifying the generic limits of the Cheilanthoid genus Doryopteris. Phytotaxa 221:101-122

Versieux LM, Barbará T, Wanderley Md, Calvente A, Fay MF &  Lexer C (2012) Molecular phylogenetics of the Brazilian giant bromeliads (Alcantarea, Bromeliaceae): implications for morphological evolution and biogeography. Molecular Phylogenetics and Evolution 64:177-189

Lindtke D, Buerkle CA, Barbara T, Heinze B, Castiglione S, Bartha D, and Lexer C (2012) Recombinant hybrids retain heterozygosity at many loci: new insights into the genomics of reproductive isolation in Populus. Molecular Ecology 21:5042-5058

Macaya-Sanz D, Suter L, Joseph J, Barbará T, Alba N, Gonzalez-Martínez SC, Widmer A, Lexer C (2011) Genetic analysis of post-mating reproductive barriers in hybridizing European Populus species. Heredity 107:478–486

Palma-Silva C, Wendt T, Pinheiro F, Barbará T, Fay MF, Cozzolino S, Lexer C. (2011) Sympatric bromeliad species (Pitcairnia spp.) facilitate tests of mechanisms involved in species cohesion and reproductive isolation in Neotropical inselbergs. Molecular Ecology 20: 3185–3201.

Lexer C, Joseph JA, van Loo M, Barbará T, Heinze B, Bartha D, Castiglione S, Fay MF, Buerkle CA (2010) Genomic admixture analysis in European Populus spp. reveals unexpected patterns of reproductive isolation and mating. Genetics 186: 699-712

C Palma-Silva, C Lexer, GM Paggi, T Barbará, F Bered and MH Bodanese-Zanettini (2009) Range-wide patterns of nuclear and chloroplast DNA diversity in Vriesea gigantea (Bromeliaceae), a neotropical forest species. Heredity 103:503–512.

Barbará T, Martinelli G, Palma-Silva C, Fay MF, Mayo S, and Lexer C. (2009) Genetic relationships and variation in reproductive strategies in four closely related bromeliads adapted to neotropical ‘inselbergs’: Alcantarea glaziouana, A. regina, A. geniculata and A. imperialis (Bromeliaceae). Annals of Botany 103:65-77.

Barbará T, Lexer C, Martinelli G, Mayo S, Fay MF, and Heuertz M. (2008) Within-population spatial genetic structure in four naturally fragmented species of a neotropical inselberg radiation, Alcantarea imperialis, A. geniculata, A. glaziouana and A. regina (Bromeliaceae). Heredity 101:285-296.

Barbará T, Palma-Silva C, Paggi GM, Bered F, Fay MF, and Lexer C. (2007) Cross-species transfer of nuclear microsatellite markers: potential and limitations. Molecular Ecology 16:3759-3767.

Barbará T, Martinelli G, Fay MF, Mayo SJ, and Lexer C. (2007) Population differentiation and species cohesion in two closely related plants adapted to neotropical high-altitude ‘inselbergs’, Alcantarea imperialis and A. geniculata (Bromeliaceae). Molecular Ecology 16:1981-1992. (download PDF

Palma-Silva C, Cavallari MM, Barbará T, Lexer C, Gimenes MA, Bered F, and Zanettini MH (2007) A set of polymorphic microsatellite loci for Vriesea gigantea and Alcantarea imperialis (Bromeliaceae) and cross-amplification in other bromeliad species. Molecular Ecology Notes 7:654-657.

Lexer C, Van Loo M, and Barbará T. (2007) Towards forest community and ecosystem genomics. New Phytologist 173:673-676.

Non Scientific reading on Bromeliads

How can conservationists maintain genetic diversity among plants in fragmented habitats? Research into bromeliads in the forests of Brazil (Kew Magazine 2007)

The Bromeliads of the Atlantic Forest (Scientific American 2000)