Czech Journal of Genetics and Plant Breeding - Online first
Evaluation of Tomato yellow leaf curl virus (TYLCV) resistance and yield performance of different genotypes of tomatoOriginal Paper
Mollah Naimuzzaman, Faizur Rahman, Md. Fayez Al-Hakim Khan, Md Mahabub Hasan, Farhana Tasmim, Real Chandra Das, Md. Rishad Khan, Md. Mahdi Hasan Munna, Md Abdul Halim, Kun Cho, Md. Omar Sharif, Swapan Kumar Roy, Farjana Sultana, Fahim Ahmed
Czech J. Genet. Plant Breed., X:X | DOI: 10.17221/54/2026-CJGPB 
Since Tomato yellow leaf curl virus (TYLCV) causes severe losses in tomato crops worldwide the search for genetic resources for breeding high-yielding, disease-resistant varieties remains challenging. We tested 25 tomato genotypes under field conditions to identify high-yielding disease-resistant genotypes. We identified several promising genotypes using advanced statistical methods, particularly genotype G13 which had a high yield of 8.8 kg per plant with 8.7 fruits per cluster and showed a low disease severity under high natural infection pressure. The genotypes G2, G3, G10, G11 showed moderate resistance, with disease severity ranging from...
Deciphering the genetic basis of heterosis for yield and its component traits using Brassica carinata-derived B. juncea alien introgression linesOriginal Paper
Prashant Vasisth, Mohit Sharma, Omkar Maharudra Limbalkar, Gokulan Dhanasekaran, Mohan Lal Meena, Priyanka Jain, Bhaskar Chandra Sahoo, Sourav Kumar Moharana, Mir Asif Iquebal, Kiran B. Gaikwad, Anshul Watts, Naveen Singh
Czech J. Genet. Plant Breed., X:X | DOI: 10.17221/74/2026-CJGPB
The genetic basis of heterosis, which is widely exploited to increase crop yields, remains incompletely understood. Introgression lines created through interspecific hybridisation have been found to be useful for understanding the genetic basis of heterosis for economically important traits. Therefore, we used B. carinata-derived B. juncea introgression lines (ILs) to study the genetic basis of heterosis and identify genes associated with heterosis in elite hybrids. To assess the contribution of introgressed genomic segments in both homozygous and heterozy-gous states, ILs, introgression line hybrids (ILHs), and the B. juncea recipient...