GENETIC-DISTANCE BETWEEN TRITICUM-TIMOPHEEVI ZHUK, TRITICUM-ARARATICUM JAKUBZ AND TRITICUM-AESTIVUM L

The genetic distances between two cultivated wheat Triticum aestivum L .) varieties (Martonvasari 9, Martonvasari 15), a Martonvasari 9 line possessing the crossability gene kr1, and 21 accessions of T. timophee vi Zhuk. and T. araraticum Jakubz. were estimated, based on agromorpho logical, physiological and biochemical analysis of data. Cluster analy sis based on Mahalanobis' D-2 values was applied. All21 accessions of T. timopheevi and T. araraticum could be classified into eight cluster s. Clusters I and II consisted of all the T. timopheevi, while T. arar aticum was located in six clusters. Discriminant analysis was applied to test significant differences between cluster pairs. The genetic dis tance (GD) based on the electrophoretic data of gliadins indicated two types of electrophoregrams in T. timopheevvi, distinguished as groups A and B. T. araraticum accessions were variable as regards the spectr a. Mean, minimum and maximum GD were estimated within and between diff erent wheat groups based on acid polyacrylamide gel electrophoresis.