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Oryza brachyantha A. Chev. et Rhoer.
Distribution
Habitat
Spikelet
Explanations
- Genome designation
- FF
- Chromosome number
- Diploid, 2n=24
- Distribution
- Tropical Africa ? Burkino Faso, Cameroon, Central Africa Republic, Chad, Guinea, Mali, Niger, Senegal, Sierra Leone, Sudan, Tanzania, Democratic Republic of Congo, Zambia
- Key characteristics
- Short (<1m), tufted annual or weakly perennial, slender culms, small, slender (<1.6m wide) spikelets with long awn (6-17cm). This species is similar in some characteristics to Leersia.
- Habitat
- Open sites, laterite rock pools.
- Potentially useful traits
- Stem borer and leaffolder resistance has been reported. Should have tolerance to iron.
- Notes
- Smallest genome size of Oryza. Sometimes sympatric with O. barthii
- References
- Aggarwal, R. K., D. S. Brar, N. Huang, and G. S. Khush. 1996b. Molecular analysis of introgression in Oryza sativa/O.brachyantha and O.sativa/O.granulata derivatives. Int. Rice Res. Notes 21:2-3.
- Lee, H.R., W. Zhang, T. Langdon, W. Jin, H. Yan, Z. Cheng and J. Jiang. 2005. Chromatin immunoprecipitation cloning reveals rapid evolutionary patterns of centromeric DNA in Oryza species. PNAS 102:11793-11798
- Mullins, I. and K. Hilu. 2002. Sequence variation in the gene encoding the 10-kDa prolamin in Oryza (Poaceae) I. Phylogenetic implications. Theoretical and Applied Genetics 105:841-846
- Ramachandran, R., Z.R. Khan. 1991. Mechanism of resistance in wild rice Oryza brachyantha to rice leaffolder Cnaphalocrocis medinalis (Guenee) (Lepidoptera: Pyralidae). Journal of Chemical Ecology 17(1):41-65
