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栽培稻是二倍体,其染色体组通用AA表示.在稻属20个种以上的近缘野生稻中,染色体组却往往差别很大.分布于我国南方及亚洲其他地区的1年生普通野生稻以及散见于世界各地的多年野生稻,其染色体组与栽培稻接近,均为AA。分布于我国南部、亚洲南部及东南亚各地的药用野生稻,是一种多年生野生稻,染色体组为CC.分布于菲律宾的小粒野生稻,是一种四倍体,2n=48,染色体组为BBCC。分布于美洲的多年生野生小颖野生稻
The cultivated rice is diploid and the genome of the genome is generally AA, but in the more than 20 kinds of wild relatives of the genus Oryza, the genomes of the genomes are often quite different. One-year-old common wild rice distributed in southern China and other parts of Asia As well as scattered throughout the world for many years of wild rice, its genome and cultivated rice close, are AA. Distributed in southern China, southern Asia and Southeast Asia, medicinal wild rice, is a perennial wild rice, chromosome group CC. Distributed in the Philippines small wild rice, is a tetraploid, 2n = 48, the genome of BBCC. Perennial Wild Wild Wild Rice distributed in the Americas