Studies on cytogenetics and biochemisty of the offsprings between A.magna and Aegilops ventricosa L.

Genetic construction of hybrid between Aegilops ventricosa L. (2n=28) and A.magna(2n=28) were analyzed by cytogenetics and isozyme.The results showed that the hybrid F 1 was complete sterility and pollen mother cell at meiosis had 28 univalents. There were 7-17 univalents in pollen mother cell at meiosis with multiple cross F 1 between hybrid F 1 and common wheat Jieyan No.1. The number of the self cross offsprings of the multiple cross F 1 root tip chrosomes was 42-54. These offsprings had not only the genetical resource of Aegilops ventricosa L. and Jieyan No.1 but also that of A.magna comparing esterase isozyme bands with amylase isozyme bands.The results showed that the hybrid between Aegilops ventricosa L. and A. magna was a real hybrid.