Oryza glaberrima rice-growing skills, as the high price of rice made it a major cash crop. The tolerance of African rice for brackish water meant it could be grown on coastal deltas, as it was in West Africa. There are numerous stories about how the rice came to North America, including a slave smuggling grains in her hair and a ship driven in to trade by a storm. African rice is a rare crop in Brazil, Guyana, El Salvador and Panama, but it is still occasionally grown there. There are also native South American rices, which makes it hard to recognize the
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.