Cytological studies of a genetic barrier in an alien addition line second backcross generation of Oryza sativa X Oryza australiensis

Wu, L.; Li, H.W.

3rd International Congress of the Society for the Advancement of Breeding Researches in Asia and Oceania SABRAO Plant Breeding Papers 1-2 Variability a Reorganizing existing variability: 28-31


Accession: 000331753

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Tabulated data are presented on plant height, tiller number, leaf and panicle characteristics, grain shape, awn length and habit in O. sativa 'Taichung 65' (genome AA), O. australiensis (EE), their hybrid (AE), a triploid derivative (AAE) and addition lines of O. sativa monosomic and disomic for the univalent nucleolar chromosome of the E genome. Ninety percent of the progeny of the monosomic addition line back crossed to O. sativa lacked the alien chromosome. Only one seedling was obtained from the disomic line; it too lacked the alien chromosome.