CHARACTERIZATION OF PROGENIES OF TRITICUM-AESTIVUM PSATHYROSTACHYS JUNCEA DERIVATIVES BY USING GENOMIC IN-SITU HYBRIDIZATION

Using genomic in-situ hybridization (GISH) technique, 7 translocation- addition lines, 6 translocation and translocation-addition lines, 2 di telosomic addition lines and 1 translocation line were identified from Triticum aestivum L.-Psathyrostachys juncea (Fisch.) Nevski intergene ric hybrids, of which translocation-addition and translocation and tra nslocation-addition lines were not found in other reports. No substitu tions and disomic additions were detected in the hybrids and breakages occurred in all P. juncea chromosomes studied. Results have shown tha t the improved GISH technique is a rapid and economical method for use in this field.