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Editorial Department

Czech J. Genet. Plant Breed., 2025, 61(1):I  

Unravelling population structure and marker trait association using SSR markers among the identified drought tolerant rice landraces (Oryza sativa L.)Original Paper

Shanmugam Manju Devi, John Amalraj Joel, Muthurajan Raveendran, Ramamoorthy Pushpam, Sengalan Muthuramu, Raman Pushpa, N. Sritharan, Periyasamy Prasanna, Ramalingam Suresh

Czech J. Genet. Plant Breed., 2025, 61(1):1-22 | DOI: 10.17221/12/2024-CJGPB  

With climate change, plants face numerous stresses, notably drought for rice cultivation. Improving rice drought tolerance is�vital for sustainable production in�water-scarce regions. Identification of�drought tolerant genotypes at�the seedling stage of�the crop contributes to�build a�climate resilient genotype during the period of�water scarcity and under challenging environmental conditions. Hence, polyethylene glycol-6000 (PEG-6000) induced drought conditions could be�used for testing the drought tolerance in�rice at�an earlier stage of�the crop. Optimization of PEG-6000 concentration for screening index at�-6 bar was done using three drought-tolerant...

Detection of genomic loci associated with days to heading in tropical japonica rice through QTL-seqOriginal Paper

Khairul Yusuf Nasution, Dani Satyawan, Muhamad Yunus, Azri Kusuma Dewi, Puput Melati, Marina Yuniawati Maryono, Ita Dwimahyani, Wening Enggarini, Sobrizal

Czech J. Genet. Plant Breed., 2025, 61(1):23-30 | DOI: 10.17221/66/2024-CJGPB  

This study investigated the genetic basis of�days to�heading (DTH) in�tropical japonica rice using F₂�populations derived from late-maturing Rojolele and early-maturing Rojolele Srinuk varieties. Phenotypic analysis of�DTH showed continuous distribution and positive skewness. Whole genome sequencing (WGS) derived single nucleotide polymorphism (SNP) from early and late-heading bulks were used to�identify three candidate regions with strong association to�DTH: qDTH3.1 and qDTH3.2 on�chromosome 3, and qDTH7.1 on�chromosome 7, with the latter linked to�the Oryza sativa Pseudo-Response Regulator 37 (OsPRR37)...

High levels of type II Fusarium head blight resistance conferred in wheat by combining wheat gene Fhb1 with Lophopyrum elongatum gene Fhb7^The2�Original Paper

Jan Dvorak, Karin R. Deal, Patrick E. McGuire, Emily J. Conley, James A. Anderson, George Fedak, Julia A. Malvick, Han Chen, Hans-Georg M�ller

Czech J. Genet. Plant Breed., 2025, 61(1):31-42 | DOI: 10.17221/104/2024-CJGPB  

Wheat Fusarium head blight (FHB) leads to�losses of�grain yield and quality. Ingestion of�diseased grain is�detrimental to�human health due to�the mycotoxins present in�the grain. Developing resistant cultivars for environments where FHB is�prevalent is�therefore an�important breeding objective. One of�the most effective wheat genes conferring type II resistance to�FHB is�Fhb1, originally discovered in�the Chinese cultivar (cv) Sumai 3. Another excellent FHB resistance gene is�Fhb7 located on�the long arm of�Lophopyrum elongatum chromosome�7E. Several alleles of�Fhb7 have been identified. Allele Fhb7^The2...

The insertion of an ancestral gene in Nicotiana tabacum plants reduces free radicals during saline irrigationOriginal Paper

Claudia Marissa Calder�n Torres, Victoria Abril Mancilla Galv�n, Miguel Murgu�a Romero

Czech J. Genet. Plant Breed., 2025, 61(1):43-49 | DOI: 10.17221/107/2024-CJGPB  

Transgenic organisms modified with ancestral genes for nitrogen metabolism are rare. Previously, it�was reported that genetically modified Nicotiana tabacum with the ARO4 gene of�aromatic amino acid synthesis from the yeast Debaryomyces hansenii increases its growth during moderate salt stress. In�this investigation, it�was explored if the changes in�the expression of�the gene DhARO4 in�Nicotiana tabacum, during saline irrigation, are related to�the chlorophyll content and the total reactive oxygen species production. Seedlings of�transgenic and wild type Nicotiana tabacum germinated in�standard conditions...

Overexpression of a sorghum SnRK1βγ2 gene increases the biomass in Setaria viridis but not in riceShort Communication

Chudamani Sharma Prakash, Lihua Wang, Qi Shen, Jieqin Li, Yi-Hong Wang

Czech J. Genet. Plant Breed., 2025, 61(1):50-53 | DOI: 10.17221/63/2024-CJGPB  

Sorghum as�a�C₄�crop has been shown to�be both drought tolerant and photosynthetically productive. In�this study, we�demonstrated that sorghum SbSnRK1βγ2 (SbSNF4-2), the γ subunit of�the sucrose non-fermenting 1 (SNF1)/SNF1-related protein kinase 1 (SnRK1) heterotrimeric complex, increased the plant height and biomass in�Setaria viridis, a�C4 relative of�sorghum, but not in�rice, a�C3 relative, when overexpressed driven by�the maize ubiquitin promoter. However, the overexpression did not increase the tiller number in�S. viridis, although it�caused modest increases in�the tiller number in�both sorghum...