Intersectional F1 hybrids obtained from the crosses, Oryza minuta Presl.*O. ridleyi Hook, and O. officinalis Wall.*O. ridleyi Hook.
- 1 January 1981
- journal article
- research article
- Published by Genetics Society of Japan in The Japanese Journal of Genetics
- Vol. 56 (1) , 67-71
- https://doi.org/10.1266/jjg.56.67
Abstract
Cytological and morphological studies were made on the F1 plants (OF1141 and OF1139) obtained from the crosses O. minuta Presl. (Y22, 2n = 48, BBCC) .times. O. ridleyi Hook. (W0001, 2n = 48) and O. officinalis Wall. (W1281, 2n = 24, CC) .times. O. ridleyi. Morphological characteristics of both the F1 plants resembled their female parents, O. minuta and O. officinalis, more closely than O. ridleyi. The F1 plants were especially characterized by producing runners. In somatic cells of the F1 plants, 2n = 48 chromosomes for the former and 2n = 36 for the latter were counted. At meiotic division of the former cross-combination, most chromosomes failed to pair. The genome constitutions of O. ridleyi apparently differed from the genomes of O. minuta, B and C.This publication has 0 references indexed in Scilit: