Fehrer, J., Krak, K., Chrtek, J. (2009) Extensive ancient hybridization in sexual and apomictic hawkweeds (Hieracium, Asteraceae) and evidence for extinct diversity. International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (lecture) [abstract]
Mráz, P., Šingliarová, B., Chrtek, J., Hodálová, I. (2009): Auto- and allopolyploid speciation within the Pilosella alpicola group with consequences for breeding system and genetic variation. International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (poster) [abstract]
Rosenbaumová, R., Krahulcová, A., Krahulec, F. (2009): Sexual reproduction as a source of ploidy level variation in the agamic complex of Hieracium subgenus Pilosella (H. pilosella and H. bauhini as model systems). International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (poster) [abstract]
Rotreklová, O., Krahulcová, A. (2009): Ploidy level and reproductive behaviour in the facultatively apomictic high-polyploid Hieracium subgen. Pilosella. International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (poster) [abstract]
Trávníček, P., Chrtek, J., Dočkalová, Z., Růžičková, P., Rauchová, J., Rosenbaumová, R. (2009): Inter-cytotype interaction in populations of plants with ploidy heterogeneity: Pilosella echioides (Asteraceae) as a model system. International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (poster) [abstract]
Urfus, T., Krahulec, F., Vít, P., Krahulcová, M., Trávníček, P. (2009): Variation in Pilosella officinarum F. W. Schultz et Sch. Bip. in Central Europe: ploidy and breeding systems and their correlation with morphogy. International Conference on Polyploidy, Hybridization and Biodiversity, May 17–20, Saint Malo, France (poster) [abstract]
Krak, K., Fehrer, J., Chrtek, J., Jr (2008) Reticulation, speciation and patterns of molecular evolution in Hieracium (Asteraceae). Systematics 2008, April 7-11, Goettingen, Germany [abstract]
Fehrer, J., Chrtek, J., Krak, K., Bräutigam, S. (2007): Diploid relict species of Asteraceae subtribe Hieraciinae in evolutionary and phylogeographic context. Phylogeography and Conservation of Postglacial Relicts, October 17–20, Luxembourg (poster) [abstract]
Krahulcová, A., Rotreklová, O., Krahulec, F., Rosenbaumová, R., Plačková, I. (2007): The role of facultatively apomictic mothers in the generation of ploidy variation in two model populations of hawkweeds (Hieracium subgen. Pilosella, Asteraceae). 3th International conference on apomixis, June 27 – July 2, Wernigerode, Germany (poster) [abstract]
Krahulec, F., Krahulcová, A.,, Rosenbaumová, R., Fehrer, J. (2007): Progeny structure and breeding behavior of facultative apomicts of Hieracium subgen. Pilosella and their experimental hybrids. 3th International conference on apomixis, June 27 – July 2, Wernigerode, Germany (lecture) [abstract]
Rosenbaumová, R., Krahulcová, A., Krahulec, F. (2007): Inheritance of apomixis in Hieracium rubrum (Asteraceae). 3th International conference on apomixis, June 27 – July 2, Wernigerode, Germany (poster) [abstract]
Rosenbaumová R., Krahulcová A., Krahulec F. (2007): Peculiarity of inheritance of apomixis in Hieracium rubrum (Asteraceae). Paradox of sexual reproduction, theory and data, September 14–15, Zürich-Dübendorf, Switzerland (poster) [abstract]
Fehrer, J., Krahulec, F., Krahulcová, A. (2006): Species relationships, biogeography, population structure, and reproduction in an agamic complex: Hieracium subgenus Pilosella (Cichoriae, Asteraceae). Genetics of Speciation, Vancouver, Canada, July 21-24 (poster) [abstract] [poster]
Chrtek, J. Jr. & Mráz, P. (2006): Hieracium s.str. in the Western Carpathians. 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture) [abstract]
Krahulcová, A., Krahulec, F., Vladimirov, V. (2006): Comparison of Hieracium subgen. Pilosella in Bulgarian and Czech populations: how is the interspecific hybridization reflected in population structure? 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture) [abstract]
Krahulec, F., Krahulcová, A., Rosenbaumová, Papoušková, S. (2006): Diversity of breeding systems in Hieracium subgen. Pilosella: present state of the knowledge. 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture) [abstract]
Krahulec, F., Krahulcová, A., Rosenbaumová, R., Fehrer, J. (2006): The role of apomictic species in agamic complexes of Hieracium subg. Pilosella. 9th International HieraciumWorkshop, September 6-11, Trenta, Slovenia (poster) [abstract]
Krak, K., Fehrer, J., Chrtek, J.Jr. (2006): Molecular tools for inferring phylogeny in Hieracium. 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture) [abstract]
Šingliarová, B., Mráz, P., Chrtek, J. Jr., Plačková, I. (2006): Pilosella alpicola subsp. ullepitschii, a diploid endemic taxon of the Carpathians: notes on taxonomy, chorology and ploidy level. 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture) [abstract]
Urfus, T., Šingliarová, B., Mráz, P., Krahulec, F. (2006): Pilosella officinarum: longitudinal differences in ploidy level distribution in the Czech Republic and Slovakia. 9th International Hieracium Workshop, September 6-11, Trenta, Slovenia (lecture Mráz) [abstract]
Fehrer, J., Krahulec, F., Krahulcová, A., Chrtek, J. (2005): Hybridization in Hieracium s.l. (Lactuceae, Asteraceae). 10th Congress of the European Society for Evolutionary Biology, Kraków, Poland, August 15-20 [abstract] [poster]
Fehrer, J., Gemeinholzer, B., Krak, K., Bräutigam, S. (2005): Evolutionary aspects in Hieracium subg. Pilosella. XVII International Botanical Congress, Vienna, Austria, July 18-23 (invited lecture) [abstract]
Krahulec, F., Krahulcová, A., Rosenbaumová, R., Fehrer, J. (2005): The role of apomictic species in agamic complexes of Hieracium subgen. Pilosella. 10th Congress of the European Society for Evolutionary Biology, Kraków, Poland, August 15-20 (poster) [abstract]
Rosenbaumová, R., Krahulec, F. (2005): Sexual reproduction as a factor influencing population genetic structure in agamic complex of Hieracium subgenus Pilosella. XVII International Botanical Congress, Vienna, Austria, July 18-23 (poster)
Chrtek, J. Jr., Tonková, M., Plačková, I., Mráz, P., Marhold, K. (2004): The Hieracium nigrescens group in the Sudeten Mountains and the Western Carpathians. 8th International Hieracium Workshop, Dedinky, Slovakia, June 16-20 (lecture) [abstract]
Košťálová, V., Krahulec, F. (2004): Distribution of mixed Hieracium bauhini - H. pilosella populations and hybridization within these populations. 8th International Hieracium Workshop, Dedinky, Slovakia, June 16-20 (poster) [abstract]
Krahulec, F., Bräutigam, S., Chrtek, J. Jr., Fehrer, J., Krahulcová, A., Procházka, F., Schuhwerk, F. (2004): The Hieracium subg. Pilosella in the Šumava Mts. 8th International Hieracium Workshop, Dedinky, Slovakia, June 16-20 (lecture) [abstract]
Peckert, T., Chrtek, J., Plačková, I. (2004): Genetic variation of agamospermous populations of Hieracium echioides s.l. in the Danube basin. 8th International Hieracium Workshop, Dedinky, Slovakia, June 16-20 (poster) [abstract]
Rosenbaumová, R., Krahulec, F. (2004): Residual sexuality as a factor influencing genetic structure within the agamic complex of Hieracium subgenus Pilosella. 8th International Hieracium Workshop, Dedinky, Slovakia, June 16-20 (poster) [abstract]
Fehrer, J., Gemeinholzer, B., Krak, K., Bräutigam, S. (2004): Hybridization in ancestral Hieracium populations inferred from chloroplast capture events predating the speciation of genera. Botanikertagung 2004, Braunschweig, Germany, September 5-10 (invited lecture) [abstract]
Fehrer, J., Krahulcová, A., Krahulec, F., Bräutigam, E., Bräutigam, S. (2003): A chloroplast DNA phylogeny of Hieracium subgen. Pilosella and its relationship to the other subgenera and to Andryala. 7thHieracium Workshop, Křivoklát, Czech Republic, May 28 - June 1 (lecture) [abstract]
Mráz, P., Chrtek, J. Jr., Plačková, I. (2003): First record on recent natural hybridization in Hieracium s.str. 7thHieracium Workshop, Křivoklát, Czech Republic, May 28 - June 1 (lecture) [abstract]
Fehrer, J. (2003): The role of sexual reproduction in recently established facultative apomicts of Hieracium subgen. Pilosella (Asteraceae). PARTNER-1 workshop (ESF) "Asexuality and time-scales", Wageningen, The Netherlands, November 20-23 (lecture) [abstract]
Fehrer, J. (2003): Hieracium subgen. Pilosella (Lactuceae, Asteraceae) at clonal, population, species and genus level. Seminar at the Inst. of Plant Genet. and Crop Plant Research, Dept. of Taxonomy (K. Bachmann), Gatersleben, Germany, April 22 (invited lecture)
Fehrer, J., Krahulcová, A., Krahulec, F., Gemeinholzer, B., Bräutigam, S. (2003): Speciation in facultatively apomictic Hieracium subgen. Pilosella taxa: a bottom-up approach. 11th New Phytologist Symposium Plant Speciation, Antigonish, Canada, June 25-29 (poster) [abstract]
Krahulcová, A., Papoušková, S., Krahulec, F., Rosenbaumová, R. (2003): Reproduction in a facultative apomict, Hieracium rubrum. 7th workshop "Biology of Clonal Plants", Kuusamo, Finland, August 2-5 (poster)
Krahulec, F., Krahulcová, A. (2003): Breeding systems in Pilosella: population structure and taxonomic consequences. University of Leicester, September 13, UK (lecture)
Suda, J., Krahulcová, A., Krahulec, F., Rosenbaumová, R., Peckert, T. (2003): Genome size variation in Hieracium subgenus Pilosella. Kew Plant Genome Size Discussion Meeting, September 11-12 RBG Kew, UK (poster) [abstract]
Fehrer, J., Šimek, R., Bräutigam, S. (2002): Clonal distribution of apomictic Hieracium subgen. Pilosella species revealed by mini- and microsatellite fingerprinting. 6thHieracium workshop, Hirschegg, Austria, July 17-23 (lecture) [abstract]
Krahulcová, A., Krahulec, F. (2002): Diversity in breeding system in Hieracium subgen. Pilosella: comparison of experimental and field data. 6thHieracium workshop, Hirschegg, Austria, July 17-23 (lecture) [abstract]
Krahulec, F., Bräutigam, S., Fehrer, J., Krahulcová, A., Chrtek, J., Šimek, R. (2002): The Sudetic group of Hieracium subgen. Pilosella: a synthesis. 6thHieracium workshop, Hirschegg, Austria, July 17-23 (lecture) [abstract]
Severa, M., Chrtek, J. Jr. (2002): On Hieracium villosum and some related taxa in the Western Carpathians. 6thHieracium workshop, Hirschegg, Austria, July 17-23 (poster) [abstract]
Fehrer, J., Bräutigam, E., Bräutigam, S. (2002): Evolution of the Hieracium/Andryala complex based on trnT-trnL sequences. Annual meeting of the German Botanist Society, Freiburg, Germany, September 22-27 (poster) [abstract]
Fehrer, J., Krahulcová, A., Krahulec, F., Bräutigam, S. (2002): Evolution, hybridisation, and clonal distribution of apo- and amphimictic Pilosella species in a Central European mountain range. Plant species-level systematics: patterns, processes and new applications, Leiden, The Netherlands, November 13-15 (lecture) [abstract]
Rotreklová, O., Chrtek, J. Jr. (2002): Hieracium bauhini Besser a H. densiflorum Tausch v ČR. IXth Congress of the Czech Botanical Society, Prague, Czech Republic, August 19-23 (poster)
Fehrer, J., Cojocariu, C., Bräutigam, S. (2001): Distribution of chloroplast DNA haplotypes of Central European highland species of Hieracium subgen. Pilosella. 5thHieracium Workshop, Liptovský Hrádok, Slovakia, July 11-16 (lecture)
Krahulcová, A., Papoušková, S. (2001): Reproduction modes in a hybridogenous, facultatively apomictic species Hieracium rubrum. 5thHieracium Workshop, Liptovský Hrádok, Slovakia, July 11-16 (poster)
Krahulec, F., Krahulcová, A., Plačková, I., Štěpánek, J. (2001): Expression of genetic variation at members of agamic complex of Hieracium subgen. Pilosella at different spatial scales. 5thHieracium Workshop, Liptovský Hrádok, Slovakia, July 11-16 (lecture)
Šimek, R., Fehrer, J., Chrtek, J. Jr. (2001): Study of the species Hieracium cymosum L. in the Czech and Slovak Republic. 5thHieracium Workshop, Liptovský Hrádok, Slovakia, July 11-16 (lecture) [abstract]
Fehrer, J., Cojocariu, C., Košťálová, V. (2001): Genetic variation of agamic complex species of Hieracium subgen. Pilosella. 15th International Symposium on Biodiversity and Evolutionary Biology, Bochum, Germany, September 23-28 (poster)
Chrtek, J. Jr. (2000): The genus Hieracium s.str. in the Carpathians - once more to the question of apomictic 'microspecies'. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (lecture) [abstract]
Fitze, D., Fehrer, J. (2000): PCR-RFLP studies of non-coding chloroplast DNA in European Hieracium subgen. Pilosella. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (poster) [abstract]
Krahulcová, A., Krahulec, F. (2000): Offspring diversity in Hieracium subgen. Pilosella: new cytotypes obtained from hybridization experiments. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (lecture) [abstract]
Mráz, P., Chrtek, J. Jr., Kirschner, J. (2000): Genetic variability in selected taxa of Hieracium sect. Alpina. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (lecture) [abstract]
Peckert, T., Chrtek, J. Jr. (2000): The Hieracium echioides group in Central Europe. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (poster) [abstract]
Štorchová, H., Tetera, M., Chrtek, J. Jr., Mráz, P. (2000) Assessment of relationships between diploid and triploid plants of H. alpinum on the basis of RAPD data. 4thHieracium Workshop, Niederspree, Germany, May 30 - June 5 (lecture) [abstract]
Bräutigam, S., Krahulcová, A., Krahulec, F., Bräutigam, E., Fitze, D., Feulner, M., Fehrer, J. (2000): Hybridogenous complex of Hieracium floribundum/H. pilosella in the low mountains of Central Europe: a complex view. Phylogeography, Hybridisation and Speciation, Aussois, France, April 18-22 (poster) [abstract]
Fehrer, J., Feulner, M., Bräutigam, S. (1999): Biodiversity, genetic structure and differentiation of Hieracium species (subgen. Pilosella) in the borderland of Saxonia, Czech Republic and Poland. 3rdHieracium Workshop, Ružomberok, Slovakia, July 21-25 (lecture)
Krahulec, F., Krahulcová, A. (1999): Pilosella in the Krkonoše Mts: diversity in ploidy and reproductive systems. 3rdHieracium Workshop, Ružomberok, Slovakia, July 21-25 (lecture)
Krahulec, F., Krahulcová, A. (1999): The distribution of Pilosella spp. in meadow communities. 3rdHieracium Workshop, Ružomberok, Slovakia, July 21-25 (poster)
Krahulec, F., Krahulcová, A., Chrtek, J. (1998): Reproduction systems, chromosome numbers and ecological parameters of a group of hybridizing Pilosella populations in a mountain grassland. Symposium IOPB "Plant Evolution in Man-made Habitats", Amsterdam, the Netherlands, August 10-15 (poster)
Fehrer, J., Bräutigam, E., Bräutigam, S., Fischer, G. (1997): Identification of Hieracium subgen. Pilosella hybrid species using morphological and DNA markers. Advances in Plant Molecular Systematics, Glasgow, Scotland, August 13-15 (poster)
