CYTOGENETICAL STUDIES ON THE GENUS ORYZA

1 January 1977

journal article
research article
Published by Genetics Society of Japan in The Japanese Journal of Genetics

Vol. 52 (4) , 301-307
https://doi.org/10.1266/jjg.52.301

Abstract

Synthesized amphiploid strains derived from an intermediate punctata-eichingeri strain (2x, CC, W1525) .times. O. punctata (2x, W1514) and O. punctata (2x, W1515) .times. O. collina (2x, CC, W0006) were crossed with strains having the BBCC genomes. The number of bivalent per cell at MI [metaphase I] of the tetraploid F1 hybrids (KB-lines) was 20-24 with a mean of 22.3 or 23.3. The diploid punctata strains probably served as the donor of the B genome for the species having the B and C genomes.

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