The meiotic behaviour and relative transmission of segregant chromosomes was studied in the progeny of the F 1 hybrids formed between a normal common wheat and lines which contained single or double wheat-rye translocations 1AL-1RS, 1BL-1RS and/or the substitution 1R(1D). Chromosome stability was evaluated in the F 2 progenies by the analysis of different markers: C-bands, LMW-and HMW-glutenins, gliadins and secalins coded for by genes GluA1, GluB1, GluD1, GluR1, GluA3, GluB3, GliA1, GliB1 and

more »

... liR1, located on either the short or long arm of the chromosomes of homoeologous group 1. Direct analysis of chromosome constitution and the χ 2 test, used in the genetic analysis of genes located in each chromosome arm, indicated that observed frequencies were significantly different from the expected Mendelian values in hybrids with only one translocation. The segregation patterns were biased in favour of the transmission of normal 1A over 1AL-1RS, normal 1B over 1BL-1RS, arm 1DL over 1RL and arm 1RS over 1DS.