利用水稻籼粳分化InDel标记鉴定育种材料的籼粳属性  

Identifying Indica-japonica Characteristic of Rice Breeding Materials with Indica-japonica Differentiation InDel Markers

作　　者：姚国新[1,2] 黄文超[2] 

机构地区：[1]湖北工程学院生命科学技术学院,湖北孝感432000 [2]武汉大学生命科学学院,湖北武汉430072

出　　处：《杂交水稻》2013年第3期53-57,共5页Hybrid Rice

基　　金：国家"863"计划项目(2011AA10A101);湖北省自然科学基金(2012FFB00504);湖北工程学院博士科研启动基金(HE2010002)

摘　　要：利用前人开发的34对籼粳分化InDel标记对来自全国多个省份的342份育种材料进行了籼粳属性鉴定,结果表明,59.65%的育种材料是典型籼稻或典型粳稻,26.61%的材料为渗入少量亚种间片段的籼稻或粳稻,偏籼、偏粳及籼粳中间型材料较少,仅为13.74%。明确育种材料的籼粳属性,有利于育种工作者根据需要选择合适籼粳成分的材料进行育种。The characteristic of indica or japonica of 342 rice breeding materials from many provinces in China was identified with the reported 34 indica-japonica differentiation InDel molecular markers. The results showed that, based on the indica index （Fi） or the japonica index （Fj）, 59.65% of the tested breeding materials were typical indica （ Fi ≥0.90） or typical japonica （ Fi ≥10.90）, and 26.61% of them were indica （ Fi = 0.75 - 0.89 ） or ja- ponica （Fj = 0.75 - 0.89） in which a few DNA fragments of the other subspeeific type had been introduced, while only 13.74% of the tested breeding materials belonged to indicaclinous （Fi =0.61 - 0.74） , japonicaclinous （Fj = 0.61 - 0.74） or intermediate type （ Fi or Fj = 0.40 - 0.60）. Understanding of the indica or japonica characteris- tic of breeding materials is very helpful to rice breeders in choosing desirable crossing parents as needed to improve rice varieties.

关 键 词：水稻 籼粳分化 INDEL标记 籼粳属性 鉴定 

分 类 号：S511[农业科学—作物学] S511.2