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Oryza rufipogon Griff.


Genome designation
Chromosome number
Diploid, 2n=24
Continental and insular Asia
Key characteristics
Spreading herb with culms extending in deep water, nodal tillering. Anthers usually >3mm. Perennial. Photoperiod sensitive.
Open, lakes and rivers sides.
Potentially useful traits
Many useful traits have been reported for this species including resistance to biotic stresses (e.g. tungro resistance), abiotic stresses (e.g. abiotic soils) and male sterility genes used in hybrid rice production.
Lack of reproductive barriers from rice and O. nivara mean populations often show introgression.
Barbier, P. 1989. Genetic variation and ecotypic differentiation in the wild rice species O. rufipogon. II. Influence of the mating system and life history traits on the genetic structure of populations. Jpn. J. Genet. 64:273-285.
Barbier, P., H., Morishima, and A. Ishihama. 1991. Phylogenetic relationships of annual and perennial wild rice probing by direct DNA sequencing. Theor. Appl. Genet. 81:693-702.
Cai, H. W., X. K. Wang, and H. Morishima. 1995. Isozyme variation in Asian common wild rice, Oryza rufipogon. Rice Genet. Newsl. 12:178-180.
Cai, H.W., X. K. Wang, and H. Morishima. 1996. Geographic variation of O. rufipogon with reference to annual-perennial differentiation. Rice Genet. Newsl. 13:67-69.
Kuroda, Y. 2004. Conservation biologival studies on Asian wild rice (Oryza rufipogon and O. nivara) in the Vientianne Plain of Laos. PhD Thesis Kyoto University
Morishima, H., Y. Sano, and H. I. Oka 1984. Differentiation of perennial and annual types due to their habitat conditions in the wild rice Oryza perennis. Plant Syst. Evol. 144:119-135.
Sano, Y., H. Morishima, and H. I. Oka. 1980. Intermediate perennial-annual populations of Oryza perennis found in Thailand and their evolutionary significance. Bot. Mag. Tokyo 93:291-305.
Sun CQ, X.K. Wang, Z.C Li, A. Yoshimura, N. Iwate, 2001. Comparison of the gentic diversity of common wild rice (Oryza rufipogon Griff.) and cultivated rice (O. sativa L.) using RFLP markers. Theor. Appl. Genet. 102:157-162