Oryza rufipogon Oryza rufipogon Oryza rufipogon, known as brownbeard rice, wild rice, and red rice, is a member of the genus "Oryza". It is native to East, South and Southeast Asia. It has a close evolutionary relation to "Oryza sativa", the plant grown as a major rice food crop throughout the world. "Oryza rufipogon" is an invasive species and listed as a 'noxious weed' by the United States, and also listed as a noxious weed in Alabama, California, Florida, Massachusetts, Minnesota, North Carolina, Oregon, South Carolina, and Vermont. According to the North American Plant Protection Association, "O. rufipogon" blends in with cultivated
Plant genome assembly products were used to clone remaining gaps, and YACs allowed the characterization of telomere sequences. The resulting sequenced regions were 115.4 Mb of the 125 Mb predicted size of the genome and a total of 25,498 of protein-coding genes. To sequence and assemble the genome of Oryza Sativa (japonica), the same strategy was used. For Oryza Sativa a total of 3,401 mapped clones in a minimum tiling path were selected from the physical map and assembled. One of the most important crops in the world, maize (Zea mays), is the last plant genome project primarily based on Sanger BAC-by-BAC strategy.