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Oryza glumaepatula Steud.
Distribution
Habitat
Habitat
Explanations
- Genome designation
- AA
- Chromosome number
- Diploid, 2n=24
- Distribution
- Latin America
- Key characteristics
- There is no key character to distinguish this species from Asian A-genome wild rice and it resembles O. rufipogon of Asia
- Habitat
- In the Amazon basin this species exhibits both annual and perennial characteristics. Annual characteristics include high seed production; perennial characteristics include tillering from upper nodes and long anthers. Has ability to break at nodes in rising water and become free floating.
- Potentially useful traits
- Male sterility
- Notes
- Latin American A-genome germplasm is complex and appears to consist of indigenous types and types that have been more recently introduced from Asia and/or Oceania.
- References
- Akimoto, M., Y. Shimamoto, and H. Morishima. 1998. Genetic differentiation in Oryza glumaepatula and its phylogenetic relationships with other AA genome species. Rice Genet. Newsl. 14:37-39.
- Juliano, A. B., M. E. B. Naredo, and M. T. Jackson. 1998. Taxonomic status of Oryza glumaepatula Steud. I. Comparative morphological studies of New World diploids and Asian AA genome species. Genet. Res. Crop Evol. 45:197-203.
- Dalmacio, R., D. S. Brar, T. Ishii, L. A. Sitch, S. S. Virmani, and G. S. Khush. 1996. Male sterile line in rice developed with O. glumaepatula cytoplasm. Int. Rice Res. Newsl. 21(1):22-23.
- Akimoto, M. 1999. Bio-systematics in the AA genome wild taxa of genus Oryza (O. sativa complex): A comparative study of morpho-physiological traits, isozymes and RFLPs of nuclear and organelle. Ph. D. Thesis, Hokkaido University.
- Vaughan D.A., H. Morishima and K. Kadowaki. 2003. Diversity in the Oryza genus. Current Opinion in Plant Biology 6:139-146
