CYTOGENETICAL STUDIES ON THE GENUS ORYZA
IX. THE F1 HYBRIDS FROM SYNTHESIZED AMPHIPLOID×SPECIES WITH THE BBCC GENOMES
1977 年 52 巻 4 号 p. 301-307
詳細
1977 年 52 巻 4 号 p. 301-307
Synthesized amphiploid strains derived from an intermediate punctata-eichingeri strain (2x, CC, W1525)×O. punctata (2x, W1514) and O. punctata (2x, W1515)×O. collina (2x, CC, W0006) were crossed with strains having the BBCC genomes. The number of bivalent per cell at MI of the tetraploid F1 hybrids (KB-lines) ranged from 20 to 24 with a mean of 22.3 or 23.3. This suggests that the diploid punctata strains served as the donor of the B genome for the species having the B and C genomes.
