云南及周边普通野生稻遗传多样性及其分布特征研究  

Analysis on Genetic Diversity and the Origin of Oryza rufipogon in Yunnan Province

作　　者：梁新霞[1] 郑晓明[1] 刘莎[1] 王君瑞[1] 乔卫华[1] 张丽芳[1] 齐兰[1] 公婷婷[2] 苏龙[1] 丁鹰宾 许睿[1] 程云连 高爱农[1] 杨庆文[1] 

机构地区：[1]中国农业科学院作物科学研究所/农作物基因资源与基因改良国家重大科学工程,北京100081 [2]中央民族大学生命与环境科学学院,北京100081

出　　处：《植物遗传资源学报》2017年第3期390-395,共6页Journal of Plant Genetic Resources

基　　金：国家自然科学基金项目(2060302-2)

摘　　要：利用27对SSR标记对云南普通野生稻的2个自然群体进行遗传多样性和起源进化分析,结果发现我国其他省份的材料与东南亚材料的遗传多样性较高,云南元江材料的遗传多样性最低。亲缘关系分析结果表明,云南元江材料与我国其他省份的普通野生稻之间关系较近,云南景洪普通野生稻与缅甸的普通野生稻关系最近,且云南元江和景洪的普通野生稻的遗传结构之间存在明显差异,说明云南普通野生稻属于中国与东南亚普通野生稻的过渡类型,为水稻起源地的"印度阿萨姆——中国云南"学说提供了科学依据。To determine the role of Oryza rufipogon Griff. populations in Yunnan Province in the origin of culti- vated rice ,27 SSR primers were used to analyze the genetic diversity of O. rufipogou Griff. populations from Yunnan and the neighbor areas. The analysis result indicated that the genetic diversity of O. rufipogon Griff. from other prov- inces of China and Southeast Asia were higher,while that of Yuanjiang materials was the lowest. The relationship anal- ysis results indicated that there was obvious genetic structure between O. rufipogon Griff. in Yuanjiang population and Jinghong population. The population from Yuanjiang County had a closer relationship with those from China; while samples from Jinghong County and Myanrnar had the closest relationship. All the results inferred that O. rufipogon Griff. from Yunnan might be the bridge type between those from China and Southeast and South of Asia,which may pro- vide the scientific reference for the theory ＂Cultivated Rice Originated in the Area from India-Assam to China-Yunnan＂

关 键 词：普通野生稻 SSR 遗传结构 遗传多样性 

分 类 号：S511.9[农业科学—作物学]