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亚洲栽培稻的祖先是普通野生稻,已成为世界公认的观点,然而亚洲栽培稻的2个亚种:粳稻和籼稻是一次起源还是二次起源仍存在很大争议,其起源地是国内还是国外依然是国际学者间争论的焦点。本文通过对184份亚洲栽培稻和203份普通野生稻3段基因序列cox3、cox1、orf 224和2段基因间序列ssv-39/178、rps2-trnfM的多样性研究,验证了以下观点:1)粳稻起源于中国,籼稻起源于中国和国外;2)亚洲栽培稻的起源为二次起源,即普通野生稻存在偏籼和偏粳2种类型,亚洲栽培稻的2个亚种籼稻和粳稻在进化过程中分别由偏籼型的普通野生稻和偏粳型的普通野生稻进化而来。
Asian rice is the common ancestor of wild rice has become a world-accepted point of view, but two Asian cultivated rice subspecies: japonica and indica is a primary or secondary origin is still very controversial, its origin is domestic or foreign Remains the focus of controversy among international scholars. In this paper, we examined the diversity of covx3, cox1, orf224 and intergenic ssv-39/178 and rps2-trnfM sequences in 184 Asian cultivated rice and 203 common wild rice ) Originated in China and Indica originated in China and abroad; 2) The origins of Asian cultivated rice are secondary origins, that is, there are two types of indica and japonica in common wild rice, two subspecies of indica and japonica in Asian cultivated rice They were evolved from the indica common wild rice and the japonica common wild rice in the evolutionary process.