Czech Journal of Genetics and Plant Breeding, 2014 (vol. 50), issue 4

INDEX OF VOLUME 50

editors

Czech J. Genet. Plant Breed., 2014, 50(4):I-IV | DOI: 10.17221/7776-CJGPB  

Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmesReview

Klára Kosová, Pavel Vítámvás, Milan Oldřich Urban, Jana Kholová, Ilja Tom Prášil

Czech J. Genet. Plant Breed., 2014, 50(4):247-261 | DOI: 10.17221/118/2014-CJGPB  

Drought represents the most devastating abiotic stress factor worldwide. It severely limits plant growth and development as well as agricultural characteristics including the final yield. The aim of this review is to summarise recent results of the breeding of barley (Hordeum vulgare) and wheat (Triticum aestivum; T. durum) for improved resistance to drought stress. First, drought-associated terms and definitions are outlined and plant strategies to cope with drought are presented. A brief overview of plant physiological mechanisms involved in water uptake and release is provided. Photosynthesis-related parameters (CO₂...

Genetic analysis and molecular mapping of leaf rust resistance genes in the wheat line 5R618Original Paper

Jiazhen WANG, Lingzhi SHI, Lin ZHU, Xing LI, Daqun LIU

Czech J. Genet. Plant Breed., 2014, 50(4):262-267 | DOI: 10.17221/164/2014-CJGPB  

The wheat (Triticum aestivum L.) line 5R618, bred at the China Agricultural University, is resistant in the seedling stage to the majority of the current Chinese pathotypes of wheat leaf rust (Puccinia triticina). To identify and map the leaf rust resistance gene in the 5R618 line, F₂ plants and F_2:3 families from a cross between 5R618 and Zhengzhou5389 (susceptible) were inoculated in the greenhouse with the Chinese P. triticina pathotype THJP. Results from the F₂ and F_2:3 populations indicate that a single dominant gene, temporarily designated Lr5R, conferred resistance....

The application of microsatellite analysis in barley malting quality breeding programmesOriginal Paper

Leona LEIŠOVÁ-SVOBODOVÁ, Lenka TOMKOVÁ, Tibor SEDLÁČEK, Vratislav PSOTA, Ladislav KUČERA

Czech J. Genet. Plant Breed., 2014, 50(4):268-277 | DOI: 10.17221/72/2014-CJGPB  

A set of 43 microsatellite loci was used to characterise the malting barley varieties and breeding lines used for the Protected Geographical Indication (PGI) "České pivo" ("Czech beer") and for other beer types. Genotype data were compared with technological malting quality parameters. The analysis of variance showed significant differences between varieties used for the given PGI and varieties used for other beer types in six variables. Three clusters of varieties specific to the PGI and three clusters specific to malting barley genotypes for other beer types were identified using a Bayesian approach. The remaining four clusters expressed effects...

Early selection of potato clones with the H1 resistance gene - the relation of nematode resistance to quality characteristicsOriginal Paper

Dorota Milczarek, Anna Przetakiewicz, Piotr Kamiński, Bogdan Flis

Czech J. Genet. Plant Breed., 2014, 50(4):278-284 | DOI: 10.17221/114/2014-CJGPB  

Breeding a new potato cultivar is a long-term process ending with a few elite individuals from initially large populations. Screening for resistance in the seedling and first clonal generations is a cost-effective and efficient way to reduce the time needed to create a new variety. Unlike the phenotypic assessment of resistance to nematodes, marker-assisted selection (MAS) can be applied at early stages of selection. The frequent question among breeders is about the impact of early selection for resistance on the agronomic value of finally selected resistant progeny. The study presents a relationship between the presence of markers TG689 and 57R and...

Identification of a new molecular marker C2-25 linked to the Fusarium oxysporum f.sp. radicis-lycopersici resistance Frl gene in tomatoShort Communication

Mirosława STANIASZEK, Wojciech SZCZECHURA, Waldemar MARCZEWSKI

Czech J. Genet. Plant Breed., 2014, 50(4):285-287 | DOI: 10.17221/70/2014-CJGPB  

Fusarium oxysporum Schlecht. f.sp. radicis-lycopersici Jarvis & Schoemaker (FORL) is a saprophytic fungus, responsible for the fusarium crown and root rot disease in tomato (Solanum lycopersicum L.). This is one of the most destructive pathogens of this species. A new cleaved amplified polymorphic sequence (CAPS) marker C2-25 was developed for the detection of the dominant gene Frl, which confers tomato resistance to FORL. C2-25 was amplified from a conserved ortholog set II (COSII) sequence C2_At2g38025. The XapI-derived restriction product of 700 bp was informative for the identification of...

The virulence spectrum of the wheat leaf rust population analyzed in the Czech Republic from 2002 to 2011Scientific Reports

Alena HANZALOVÁ, Pavel BARTOŠ

Czech J. Genet. Plant Breed., 2014, 50(4):288-292 | DOI: 10.17221/40/2014-CJGPB  

The research report presents a summary of wheat leaf rust virulence surveys in the Czech Republic from 2002 to 2011. Determination of virulence was based on infection types on Thatcher near-isogenic lines (NILs) with the resistance genes Lr1, Lr2a, Lr2b, Lr2c, Lr3a, Lr9, Lr10, Lr11, Lr13, Lr15, Lr17, Lr19, Lr21, Lr23, Lr24, Lr26 and Lr28, respectively. Virulence for Lr9 and Lr 19 occurred only sporadically in the investigated period. On average, virulence for Lr2a, Lr2b,...

Development of high baking quality winter wheat AnnieNew Varieties

Pavel HORČIČKA, Ondřej VEŠKRNA, Tibor SEDLÁČEK, Jaroslav MATYK, Jana CHRPOVÁ, Alena HANZALOVÁ, Laura DIXON

Czech J. Genet. Plant Breed., 2014, 50(4):293-295 | DOI: 10.17221/238/2014-CJGPB  

Annie is a medium-early winter wheat developed at the Plant Breeding Station, Stupice, SELGEN, a.s., Czech Republic and registered in the Czech Republic in 2014. In the Official Variety Trials this variety showed very high baking quality class E combined with higher grain yield than in the check variety Akteur with similar grain quality. It carries Pch1 gene conferring resistance to eyespot and possesses combined resistance to most diseases together with excellent frost resistance.