稻瘿蚊多抗性材料的聚合与创新  

Gathering Hybidization of More Gall Midge Resistance Material

作　　者：冯锐[1] 秦学毅[1] 唐建淮[1] 朱汝财[1] 潘英华[1] 刘百龙[1] 韦素美[2] 黄凤宽[2] 

机构地区：[1]广西农科院水稻研究所,广西南宁530007 [2]广西农科院植保研究所,广西南宁530007

出　　处：《中国农学通报》2008年第11期81-84,共4页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金项目"药用野生稻对褐飞虱免疫性新基因的鉴定及创新利用"(30760117);国家科技计划"热带亚热带优势农作物品种引进选育"(2007BAD68B01)。

摘　　要：稻瘿蚊是广西及南方各省中、晚稻的灾害性害虫,对水稻生产构成严重威胁,由于目前的抗性品种较少,为了能更好的发掘和利用优异抗源来培育抗虫品种。利用广西高抗稻瘿蚊地方品种GX-M001(江潮)与已知抗性基因的抗蚊青占(含GM6基因型)、斯里兰卡的OB677(含GM3基因型)、HT1350和高产优质品种桂软占杂交。通过常规育种手段将抗性多基因整合,抗抗聚合明显的提高了整体抗性水平,而且抗性级别也有所提高,许多组合品系其抗性级别达到了免疫级(0级),特别是GX-M001(高抗)与OB677(中抗)和HT1350(感)杂交也能获得两个免疫级株系,这也许是基因累加效应的作用。通过采用聚合杂交成功地将多抗性基因聚合在一起,培育出多抗性的创新材料,在条件差的地方采用抗抗聚合是选育高抗品种的有效途径。Research object： Orseolia oryzae is the major late rice pest in Guangxi province and South China, which poses the biggest threat to rice production. At present, the resistant varieties are less. In order to fully exploit and utilize the excellent germ plasm resources to breed the resistant pest varieties, the author had done some crosses among high resistant local variety ‘GX-M001 （jiangchao） ＇ in Guangxi province and existence of resistance gene variety ‘Kangwenqingzhan＇ （GM6 gene）, OB677 （GM3 gene）from Sri Lanka, HT1350 and high yield and quality variety ‘Guiruanzhan＇. Results： Integration of resistance genes using the conventional breeding methods could improve the whole resistant level and enhance the resistant grade. The resistant grade of many combined lines reached the immune grade （0 grade）, especially for the crossing between GX001 and HT1305. A high resistant variety and middle resistant variety could obtain two immune lines, which maybe was the accumulating effect of genes. Conclusion： Resistance genes were polymerized successfully by polymerization hybridization breeding, and developed new resistant materials. The author thinks that using resistance polymerization is effective approaches to select high resistant varieties.

关 键 词：稻瘿蚊 聚合杂交 水稻育种 

分 类 号：S435.112.5[农业科学—农业昆虫与害虫防治]