Biopolymers and cell. 1991. Volume 7. 5. 55 - 62

 

KOROSTASH M. A., BUTSKO E. V., KOVTUN E. V.

 

Analysis of Asymmetric Somatic Hybrid Genome Organization in Nicotiana

 

Summary

 

    Inter- and intraspecific «gamma»-hybrids in Nicctiana were obtained with dose usage 10—1000 Gy. Cytological and molecularbiological analysises of 60 hybrid lines showed, that polyploid «gamma»-hybrids, containing one irradiated donor genome per two, three intact recipient ones, have selective advantages. 75—96 % donor chromosomes didn't preserve in fusion products after treatment with 1000 Qy.