Czech Journal of Genetics and Plant Breeding, 2019 (vol. 55), issue 2
The role of ZIP proteins in zinc assimilation and distribution in plants: current challengesReview
Juan Daniel Lira-Morales, Nancy Varela-Bojórquez, Magaly Berenice Montoya-Rojo, J. Adriana Sañudo-Barajas
Czech J. Genet. Plant Breed., 2019, 55(2):45-54 | DOI: 10.17221/54/2018-CJGPB 
Soils with mineral deficiencies lead to nutritional imbalance in crops worldwide. Zinc (Zn) is a micronutrient that is fundamental for plant growth and development, being essential for the proper functioning of a range of enzymes and transcription factors. Zn transporters tightly regulate Zn homeostasis. Plants contain a large number of Zn-responsive genes that are specifically expressed under Zn deficiency to ensure the coordination of assimilatory pathways and meet the physiological requirements. This review brings together a range of studies that have been undertaken to investigate the effects of Zn status on the regulatory mechanisms involved in...
Genetic effects of F1 pollen sterility genes S-b, S-d and S-e in rice (Oryza sativa L.)Original Paper
Mingsong Jiang, Jiandi Xu, Feng Chen, Wenyin Zhu
Czech J. Genet. Plant Breed., 2019, 55(2):55-60 | DOI: 10.17221/181/2017-CJGPB
An experimental population commonly used in genetic analyses of gene or quantitative trait loci (QTLs) in rice is chromosome segment substitution lines (CSSLs). In the present study, with the typical indica variety Guangluai 4 as a donor and japonica variety Taichung 65 as a recipient, seven CSSLs carrying F1 pollen sterility genes S-b, S-d, S-e, S-b/S-d, S-b/S-e, S-d/S-e, and S-b/S-d/S-e were obtained by specific selection for the target genes, non-specific selection for the genome of the recurrent...
Evaluation of salinity tolerance indices in North African barley accessions at reproductive stageOriginal Paper
Dorsaf Allel, Anis BenAmar, Mounawer Badri, Chedly Abdelly
Czech J. Genet. Plant Breed., 2019, 55(2):61-69 | DOI: 10.17221/50/2017-CJGPB
Soil salinity is one of the main factors limiting cereal productivity in worldwide agriculture. Exploitation of natural variation in local barley germplasm is an effective approach to overcome yield losses. Three gene pools of North African Hordeum vulgare L. grown in Tunisia, Algeria and Egypt were evaluated at the reproductive stage under control and saline conditions. Assessment of stress tolerance was monitored using morphological, yield-related traits and phenological parameters of reproductive organs showing significant genetic variation. High heritability and positive relationships were found suggesting that some traits associated with...
Environmental and genetic effects on cadmium accumulation capacity and yield of maizeOriginal Paper
Vlado Kovačević, Imre Kádár, Luka Andrić, Zvonimir Zdunić, Dario Iljkić, Ivana Varga, Jurica Jović
Czech J. Genet. Plant Breed., 2019, 55(2):70-75 | DOI: 10.17221/5/2018-CJGPB
Maize (Zea mays) is an economic crop suitable for use in phytoremediation in low to moderately cadmium (Cd)-contaminated soils due to its ability to accumulate high concentration of Cd in parts of maize that are not used in human diet. The aim of this study was to test Cd content in nine female parents of the commercial maize hybrids (C1 = ♀2-48; C2 = ♀1767/99; C3 = ♀87-24; C4 = ♀135-88, C5 = ♀84-28; C6 = ♀84-44; C7 = ♀438-95; C8 = ♀30-8; C9 = ♀B-73) grown under field conditions in two soils (B1: eutric cambisol, B2: stagnosol) during three growing seasons (A1: 2006, A2: 2007,...
Identification of manganese-responsive microRNAs in Arabidopsis by small RNA sequencingOriginal Paper
Jian Gong, Dong Li, Hao Li, Huakun Zhou, Jin Xu
Czech J. Genet. Plant Breed., 2019, 55(2):76-82 | DOI: 10.17221/57/2018-CJGPB
Manganese (Mn) is an important micronutrient for growth and development in plants, however, excess Mn is harmful by disrupting photosynthesis system and inducing oxidative damage in leaves. MicroRNAs (miRNAs) play key roles in regulating Mn toxicity tolerance in plants. Here, we identified Mn toxicity-responsive miRNAs in Arabidopsis by using small RNA sequencing. Eighteen differentially expressed miRNAs were identified in Arabidopsis thaliana seedlings in response to Mn toxicity. These differentially expressed miRNAs are involved in regulating nutrition homeostasis, transport, stress response, and developmental processes. Our results...
Multivariate characteristics of selected grass varieties for seed productionShort Communication
Marzena Iwańska, Danuta Martyniak, Marcin Martyniak, Dariusz Gozdowski
Czech J. Genet. Plant Breed., 2019, 55(2):83-86 | DOI: 10.17221/186/2017-CJGPB
Data were obtained in a field experiment carried out at Plant Breeding and Acclimatization Institute Radzikow (central Poland) in 2009-2011. The aim of this study was a multivariate evaluation of 13 advanced lines and cultivars of Festuca rubra, taking into account traits important in seed production. Eleven traits of the grasses and plant resistance to diseases were evaluated. On the basis of multivariate analyses, i.e. hierarchical cluster analysis and principal component analysis, groups of varieties were separated and described, relationships between the traits were evaluated as well. The traits with the biggest influence on multivariate...