Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: INDEX of Volume 44 Journal: Czech Journal of Genetics and Plant Breeding Pages: I-III Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/2513-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/2513-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:2513-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Ladislav Dotlačil Author-Workplace-Name: Crop Research Institute, Prague-Ruzyně, Czech Republic Author-Name: Iva Faberová Author-Workplace-Name: Crop Research Institute, Prague-Ruzyně, Czech Republic Author-Name: Zdeněk Stehno Author-Workplace-Name: Crop Research Institute, Prague-Ruzyně, Czech Republic Title: Plant genetic resources in the Czech Republic Abstract: The study and conservation of plant genetic resources (PGR) in the Czech Republic has a long tradition. Since 1993, the efforts on PGR have been concentrated within the National Programme on Plant Genetic Resources. Twelve institutions hold a total of 50 000 accessions; 18.4% of which are vegetatively reproduced species. The Crop Research Institute (CRI), Prague, has overall responsibility for coordinating the Programme, holds more than a half of all accessions in the Czech collections, runs the national information system on PGR, and provides long-term storage for all seed-propagated species (inclusive the routine cryo-bank for selected vegetatively reproduced crops). All of the Czech collections are fully documented with passport data. Evaluation data sets (based on National Descriptor Lists) are available for 65% of the accessions. Intensive characterization and evaluation of genetic resources is performed to facilitate their use in breeding and agriculture. Each year, between 2400 and 5500 samples of PGR are provided to users. We make efforts to extend users' access to genetic resources. The collecting missions within the Czech territory, including the conservation and monitoring of valuable resources in situ, contribute to the preservation of valuable local resources. International collaborations operate on global, regional and bilateral levels; a guaranty of the international exchange of genetic resources is a fundamental policy. All Czech institutions dealing with plant genetic resources are involved in the European Cooperative Programme on Plant Genetic Resources (ECPGR). Keywords: plant genetic resources, National Programme, international collaboration Journal: Czech Journal of Genetics and Plant Breeding Pages: 129-139 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/73/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/73/2008-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-200804-0002.txt Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:73-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Leonor Caballero Author-Workplace-Name: Department de Genetics, School of Agricultural and Forestry Engineering, University of Cordoba, Spain Author-Name: Luis M. Martín Author-Workplace-Name: Department de Genetics, School of Agricultural and Forestry Engineering, University of Cordoba, Spain Author-Name: Juan B. Alvarez Author-Workplace-Name: Department de Genetics, School of Agricultural and Forestry Engineering, University of Cordoba, Spain Title: Variation of high molecular weight glutenin subunits in two neglected tetraploid wheat subspecies Abstract: The genetic diversity of 140 accessions of Triticum turgidum ssp. carthlicum Nevski em. A. Löve & D. Löve and 159 accessions of T. turgidum ssp. polonicum L. em. Thell. was evaluated by the analysis of HMW glutenin subunits. Seven allelic variants were found among the carthlicum accessions: three at the Glu-A1 locus (two of them were novel alleles) and four at the Glu-B1 locus (one of them novel). More variability was found among the polonicum accessions with 16 allelic variants: six at the Glu-A1 locus (three of them novel), and ten at the Glu-B1 locus (five of them novel). Totally, ten new alleles were found, one of which appeared in both subspecies. Out of 19 different combinations of alleles detected in both subspecies, 14 were novel. Based on the available passport data, the carthlicum accessions could be separated by origin into 18 groups, and the polonicum accessions into 33 such groups. The genetic diversity was lower among the carthlicum (Ht = 0.174) than among the polonicum accessions (Ht = 0.562). In both subspecies, most diversity was present between groups differing in origin, whereas diversity within the groups was very low. The detected variability offers possibilities for the improvement of bread making quality in durum wheat through introduction of newly detected alleles and for the broadening of genetic diversity in this wheat species. Keywords: tetraploid wheat, seed storage proteins, genetic diversity, electrophoresis Journal: Czech Journal of Genetics and Plant Breeding Pages: 140-146 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/61/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/61/2008-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-200804-0003.txt Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:61-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Srinivasachary Author-Workplace-Name: John Innes Centre, Norwich Research Park, Colney, Norwich, UK Author-Name: Nicolas Gosman Author-Workplace-Name: John Innes Centre, Norwich Research Park, Colney, Norwich, UK Author-Name: Andrew Steed Author-Workplace-Name: John Innes Centre, Norwich Research Park, Colney, Norwich, UK Author-Name: Sebastien Faure Author-Workplace-Name: John Innes Centre, Norwich Research Park, Colney, Norwich, UK Author-Name: Rosemary Bayles Author-Workplace-Name: National Institute of Agricultural Botany (NIAB), Huntington Road, Cambridge, UK Author-Name: Philip Jennings Author-Workplace-Name: Central Science Laboratory, Sand Hutton, York, UK Author-Name: Paul Nicholson Author-Workplace-Name: John Innes Centre, Norwich Research Park, Colney, Norwich, UK Title: Mapping of QTL associated with Fusarium head blight in spring wheat RL4137 Abstract: Fusarium head blight (FHB) is a destructive disease of wheat worldwide. We aimed to map QTL for FHB resistance in RL4137, a FHB resistant line derived from Frontana using 90 recombinant inbred lines (RIL) from a cross between RL4137 and the moderately FHB resistant variety Timgalen. A total of seven putative FHB resistance QTL (1B, 2B, 3A, 6A, 6B, 7A and 7D) were identified and in all but one instance, the alleles from RL4137 had a positive effect on FHB resistance. The QTL, Qfhs.jic-2band Qfhs.jic-6b contributed by the alleles from RL4137 and Timgalen, respectively were detected in multiple trials. Our study also identified three QTL for plant height (2B, 4A and 5B), two QTL for weight of infected spikelets from infected ears (2B and 6A) and one QTL for "awns" (2B). The QTL mapped on 2B for PH, WIS and awns co-localized with Qfhs.jic-2b. The FHB QTL on 1B and 6B were not associated with PH QTL and that the minor PH QTL on 4A and 5B, did not co-localise with any other FHB resistance QTL. Keywords: wheat, FHB traits, plant height, awn measurements, DON tolerance, DArT, genetic map, QTL Journal: Czech Journal of Genetics and Plant Breeding Pages: 147-159 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/70/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/70/2008-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-200804-0004.txt Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:70-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Antonín DREISEITL Author-Workplace-Name: Agrotest fyto, Kromeříž, Czech Republic Title: Virulence frequency to powdery mildew resistances in winter barley cultivars Abstract: Virulence frequencies to powdery mildew resistances in winter barley cultivars mostly registered in the Czech Republic were studied in 2007 and 2008. Random samples of the air populations originating from winter and spring barley fields were obtained by means of a mobile version of a jet spore sampler. Conidia were sampled by driving across the Czech Republic. In total 349 isolates were studied and 17 differentials were used. The virulence frequencies to specific resistances of given cultivars showed wide range from 0% to 100%. Nine differentials were used to distinguish 134 pathotypes, of which 32 representing 63.9% of isolates were detected in both years. Pathotype 773, which broke down the resistance of eight differentials, was the most abundant. In 2008, lower virulence frequencies to all differentials, and thus lower population complexity, were determined, which may be caused by different regional origins of the isolates examined. Importance of the study of the given pathogen population is discussed in terms of successful breeding of resistant barley cultivars. Keywords: barley, Blumeria graminis f.sp. hordei, Hordeum vulgare, powdery mildew resistances, pathogen populations, virulence frequencies Journal: Czech Journal of Genetics and Plant Breeding Pages: 160-166 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/39/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/39/2008-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-200804-0005.txt Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:39-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: P. Laml Author-Name: J. Pánek Title: Winter wheat Baletka Journal: Czech Journal of Genetics and Plant Breeding Pages: 167-168 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/74/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/74/2008-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:74-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: P. Laml Author-Name: J. Pánek Title: Winter wheat Bakfis Journal: Czech Journal of Genetics and Plant Breeding Pages: 169-170 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/75/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/75/2008-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:75-2008-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: J. Kreuzman Title: Pea variety Slovan Journal: Czech Journal of Genetics and Plant Breeding Pages: 171-172 Volume: 44 Issue: 4 Year: 2008 DOI: 10.17221/76/2008-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/76/2008-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:44:y:2008:i:4:id:76-2008-CJGPB