CYTOGENETICAL STUDIES ON THE INTERGENERIC HYBRID BETWEEN AEGILOPS AND SECALE
- 1 January 1965
- journal article
- research article
- Published by Genetics Society of Japan in The Japanese Journal of Genetics
- Vol. 40 (4) , 325-335
- https://doi.org/10.1266/jjg.40.325
Abstract
An F1 plant was obtained from the cross of an induced autotetraploid Aegilops squarrosa with a diploid Secale cereale: 2 BCF1 (back cross) plants were obtained from the back cross of the F1 plant with S. cereale. In the cross 4x-A. squarrosa XS cereale the F1 plant had 2n =21 chromosomes in PMC''s (pollen mother cells); this plant was a triple hybrid carrying DDR (D= Dominant, R = recessive) gsnomes. Somatic chromosome numbers in the 2 BCF1 plants, were 21 and 23. Karyotype analysis suggested that genome constitution of the BCF1-I plant might be a haploid set of A. squarrosa and a diploid set of S. cereale, that is, D and RR genomes. The BDF1-2 plant might be a hypertriplold plant carrying DRR genomes and 2 extra chromosomes. One of these 2 chromosomes seemed to belong to the D genome and the other to the R genome. Intra-genome pairing between chromosomes in the D genome was observed.This publication has 0 references indexed in Scilit: