Department of Plant Breeding, Punjab Agricultural University, Ludhiana
Asynapsis was induced in the barley variety C. 164 by treating the seeds with 40 kR 6oCo Gamma rays. There was no conjugation of the homologous chromosomes at pachytene and all the subsequent meiotic stages were highly irregular. The asynaptic plants produced highly sterile pollen and there was no seed setting. The asynapsis was controlled by a single gene that was recessive to that for normal meiosis.
