Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: LIST OF REVIEWERS - 2012 Journal: Czech Journal of Genetics and Plant Breeding Pages: I Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/6593-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/6593-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:6593-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Ljiljana BRBAKLIC Author-Workplace-Name: Small Grains Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia Author-Name: Dragana TRKULJA Author-Workplace-Name: Small Grains Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia Author-Name: Ankica KONDIC-SPIKA Author-Workplace-Name: Small Grains Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia Author-Name: Sanja TRESKIC Author-Workplace-Name: Small Grains Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia Author-Name: Borislav KOBILJSKI Author-Workplace-Name: Small Grains Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia Title: Detection of QTLs for important agronomical traits in hexaploid wheat using association analysis Abstract: One of the main wheat breeder's goals is determining specific genomic regions which control important agronomical traits. Association analysis is a new strategy with high resolution in plant molecular breeding that could be used to improve the efficiency of marker assisted selection (MAS) for finding important QTLs (quantitative trait loci) or genes. A set of 96 diverse wheat genotypes was phenotypically measured during three growing seasons (2006/07, 2007/08, 2008/09). Microsatellite markers located near important QTLs were carefully chosen in accordance with existing literature data to validate marker trait associations (MTA). Genomic DNA was extracted using the CTAB method and PCR products were separated by capillary electrophoresis. The population structure was assigned based on molecular data in Structure v. 2.0 software, while association analysis was done by the Tassel program using the Q matrix. Nine significant associations were stable in all years investigated and eight MTA were detected to be significant in two growing seasons. Microsatellite markers which showed significant associations and stability in different seasons can be useful and suitable for marker assisted selection (MAS) in Serbian wheat breeding programs. Keywords: agronomical traits, microsatellite markers, QTLs, Tassel, Triticum aestivum Journal: Czech Journal of Genetics and Plant Breeding Pages: 1-8 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/64/2012-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/64/2012-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-201301-0002.txt Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:64-2012-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Dagmar Procházková Author-Workplace-Name: Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic Author-Name: Raj Kumar Sairam Author-Workplace-Name: Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi, India Author-Name: S. Lekshmy Author-Workplace-Name: Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi, India Author-Name: Naďa Wilhelmová Author-Workplace-Name: Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic Title: Differential response of maize hybrid and its parental lines to salinity stress Abstract: We studied differences in salt stress response between two parental maize genotypes and their hybrid of the first filial (F1) generation. We determined their membrane stability index in addition to the content of photosynthetic pigments, superoxide radical, Na+, proline and sugars and the activities of ascorbate peroxidase, catalase and glutathione reductase. The F1 hybrid, known as Pusa Early Hybrid Makka 3 (PEHM 3), showed a higher membrane stability index and chlorophyll content and lower superoxide radical and Na+ content than its parents, the sensitive CM 142 line and the tolerant CM 213 line. This heterosis allows the conclusion that the hybrid might be better equipped to cope with salinity stress than both parental lines, although it did not show the best antioxidant protection or the highest sugar or proline content. Keywords: antioxidant enzymes, Na+, proline, salinity stress, sugars, Zea mays L Journal: Czech Journal of Genetics and Plant Breeding Pages: 9-15 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/158/2011-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/158/2011-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-201301-0003.txt Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:158-2011-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Zhao Di XIAO Author-Workplace-Name: State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, P.R. China Author-Name: Xiao Yang XIN Author-Workplace-Name: State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, P.R. China Author-Name: Hai Yan CHEN Author-Workplace-Name: State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, P.R. China Author-Name: Sheng Wu HU Author-Workplace-Name: State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, P.R. China Title: Cytological investigation of anther development in DGMS line Shaan-GMS in Brassica napus L. Abstract: The cytological mechanism of male sterility of Shaan-GMS, a natural mutant dominant genic male sterile (DGMS) line in Brassica napus L., is not well studied. Cytological observation was made on different-size buds of DGMS line 0A30A derived from Shaan-GMS line. The pollen mother cells (PMCs) of DGMS line 0A30A were degenerating at the beginning of meiosis and could not pass the anaphase I stage, with no dyads or tetrads formed, suggesting that the DNA damage checkpoint and spindle assembly checkpoint were activated in sterile anthers. During the meiosis process of sterile anthers in the sterile plants, several kinds of abnormal meiotic cells could be observed: nuclei condensed PMCs, cells with micronuclei, collapsed cells, plasmolysis cells, cells connected with nucleoplasmic bridge, and microspore analogue developed from PMCs without meiosis but enclosed by the exine wall. The results suggested Shaan-GMS to be a new type of DGMS line in B. napus. Keywords: anther abortion, Brassica napus L., cytological observation, DGMS Journal: Czech Journal of Genetics and Plant Breeding Pages: 16-23 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/33/2012-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/33/2012-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-201301-0004.txt Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:33-2012-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Jose Alberto OLIVEIRA Author-Workplace-Name: Crop Production Area, Department of Organisms and System Biology, School Polytechnic of Mieres, University of Oviedo, Mieres, Asturias, Spain Author-Name: Julio Enrique LÓPEZ Author-Workplace-Name: Agrarian Research Centre of Mabegondo, La Coruña, Galicia, Spain Author-Name: Pedro PALENCIA Author-Workplace-Name: Crop Production Area, Department of Organisms and System Biology, School Polytechnic of Mieres, University of Oviedo, Mieres, Asturias, Spain Title: Agromorphological characterization, cyanogenesis and productivity of accessions of white clover (Trifolium repens L.) collected in Northern Spain Abstract: White clover (Trifolium repens L.) is an essential element of sustainable livestock systems in temperate climates because of its adaptability to a range of management and soil fertility conditions. The performance of 15 accessions of white clover collected in northern Spain, and of two cultivars, the medium-leaved Huia and the large-leaved California, grown as spaced plants in Galicia, and in sward plots in Asturias was compared over a period of two years. The data obtained were reduced to two principal components that cumulatively explained 92.4% of the total variance. Cluster analysis identified three groups of accessions that described 71% of the phenotypic variation among accessions. One group of five accessions collected from upland sites was characterized by low dry matter yield, low height, reduced plant spread, short petioles, small leaves and thin stolons. This group can be defined as small-leaved and of interest for gardening. Another group, composed only by the cv. California and the cv. Huia, was characterized by high plant spread and height, long wide leaves and thick petioles and stolons; dry matter yields were similar to those of the first group. The last group, which includes ten accessions collected from low and medium altitude sites, had the highest dry matter yields and intermediate morphological character between the previous groups. This group can be defined as medium-leaved and of interest for grazing and/or cutting. Keywords: genetic resources, multivariate analysis, spaced plants, sward plots Journal: Czech Journal of Genetics and Plant Breeding Pages: 24-35 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/157/2011-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/157/2011-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-201301-0005.txt Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:157-2011-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: Marcin STUDNICKI Author-Workplace-Name: Department of Experimental Design and Bioinformatics, Faculty of Agriculture and Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland Author-Name: Wiesław MĄDRY Author-Workplace-Name: Department of Experimental Design and Bioinformatics, Faculty of Agriculture and Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland Author-Name: Jan SCHMIDT Author-Workplace-Name: Botanical Garden, Plant Breeding and Acclimatization Institute - National Research Institute, Bydgoszcz, Poland Title: Comparing the efficiency of sampling strategies to establish a representative in the phenotypic-based genetic diversity core collection of orchardgrass (Dactylis glomerata L.) Abstract: Establishing a core collection that represents the genetic diversity of the entire collection with a minimum loss of its original diversity and minimal redundancies is an important problem for gene bank curators and crop breeders. In this paper, we assess the representativeness of the original genetic diversity in core collections consisting of one-tenth of the entire collection obtained according to 23 sampling strategies. The study was performed using the Polish orchardgrass Dactylis glomerata L. germplasm collection as a model. The representativeness of the core collections was validated by the difference of means (MD%) and difference of mean squared Euclidean distance (d‒D%) for the studied traits in the core subsets and the entire collection. In this way, we compared the efficiency of a simple random and 22 (20 cluster-based and 2 direct cluster-based) stratified sampling strategies. Each cluster-based stratified sampling strategy is a combination of 2 clusterings, 5 allocations and 2 methods of sampling in a group. We used the accession genotypic predicted values for 8 quantitative traits tested in field trials. A sampling strategy is considered more effective for establishing core collections if the means of the traits in a core are maintained at the same level as the means in the entire collection (i.e., the mean of MD% in the simulated samples is close to zero) and, simultaneously, when the overall variation in a core collection is greater than in the entire collection (i.e., the mean of d‒D% in the simulated samples is greater than that obtained for the simple random sampling strategy). Both cluster analyses (unweighted pair group method with arithmetic mean UPGMA and Ward) were similarly useful in constructing those sampling strategies capable of establishing representative core collections. Among the allocation methods that are relatively most useful for constructing efficient samplings were proportional and D2 (including variation). Within the Ward clusters, the random sampling was better than the cluster-based sampling, but not within the UPGMA clusters. Keywords: core collection, genetic diversity, germplasm collection, orchardgrass, phenotypic variation, representativeness, sampling strategies Journal: Czech Journal of Genetics and Plant Breeding Pages: 36-47 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/9/2012-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/9/2012-CJGPB.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjg-201301-0006.txt Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:9-2012-CJGPB Template-Type: ReDIF-Article 1.0 Author-Name: R. Šafaříková Title: List of field crop varieties registered in the Czech Republic in 2012 Journal: Czech Journal of Genetics and Plant Breeding Pages: 48-49 Volume: 49 Issue: 1 Year: 2013 DOI: 10.17221/19/2013-CJGPB File-URL: http://cjgpb.agriculturejournals.cz/doi/10.17221/19/2013-CJGPB.html File-Format: text/html Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:1:id:19-2013-CJGPB