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ORYZA- An International Journal on Rice
Year : 2011, Volume : 48, Issue : 3
First page : ( 195) Last page : ( 199)
Print ISSN : 0474-7615. Online ISSN : 2249-5266.

Development of F1 and BC1F1 interspecific hybrids of O. sativa cv. Savitri/O.brachyantha to introgress yellow stem borer resistance genes into cultivated rice

Panda B., Kar M.K., Padhi G., Sen P.

Central Rice Research Institute, Cuttack-753006

Online published on 16 March, 2012.

Abstract

In the present study an attempt has been made to introgress yellow stem borer resistance genes from O. brachyantha (FF) to cultivated rice through development of F1 and BC1F1 interspecific hybrids of O. sativa cv Savitri/O.brachyantha. The morpho-cytological characterization of the hybrids was done in order to know the phenotypic characters of the interspecific hybrids and cytological behavior of the chromosomes. The data revealed that in general morphologically, the F1 was intermediate between the donor and recipient parents. In F1 interspecific hybrid no chromosome pairing was observed, where as in BC1F1 presence of 0–2 trivalents and bivalents was observed.

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Keywords

Rice, Genome, Wild species, Interspecific hybrids, Yellow stem borer.

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