Genetic Divergence Analysis in Aromatic and Non- Aromatic Germplasm of Rice

Rice belongs to the genus Oryza family Poaceae and subfamily bambusoideae, has two cultivated and 22 wild species. Nine of the wild species are tetraploid (2n =48). The remaining wild species and the two cultivated species are diploid (2n =24). The cultivated species are Oryza sativa and Oryza glaberrima. Asian cultivated rice, Oryza sativa, is grown widely while the growth of Oryza glaberrima, the African cultivated rice, is limited to West Africa. Asian cultivated rice varieties were domesticated from the common wild rice ancestor Oryza rufipogon, under both natural and human selection pressures, and displays large genetic diversity across a thousand varieties. International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 7 (2020) Journal homepage: http://www.ijcmas.com