Enhancement of Rice Germplasm by Pyramiding the Cultivars with Multi-resistance to Orseolia oryzae (Wood-Mason)  

稻瘿蚊多抗性材料的聚合与创新(英文)

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]广西农业科学院水稻研究所,广西南宁530007 [2]广西农业科学院植保研究所,广西南宁530007

出　　处：《Agricultural Science & Technology》2009年第1期7-10,共4页农业科学与技术（英文版）

基　　金：Supported by National Natural Science Foundation of China(30760117);National Key Technology R &D Program (2007BAD68B01)~~

摘　　要：[ Objective] This study was to breed rice cultivars with multi-resistance to Orseolia oryzae （Wood-Mason）. [ Method] The Guangxi local cultivar GX-M001 （Jiangchao） with high resistance to Orseolia oryzae （Wood-Mason） was used to hybrid with the known resistance cultivars ＂Kangwenqingzhan＂ （harboring GM5 gene）, OB677（ harboring GM3 gene） from Sri Lanka, HT1350 and high yield end quality cultivar ＂ Guiruanzhan＂. [ Result] Through pyramiding the multi-resistant genes via routine hybridization, the general resistances of the hybrids were remarkably enhanced. The grades of resistance were also improved, many of the combinations were endowed with a resistance at immune level （grade 0） ; and interestingly, the respective hybridization of GX-M001 （high resistance） with OB677（ medium resistance） and HT1350（suscepti- ble） also generate two lines at immune level, which is probably the effects of additive effects of genes.[ Conclusion] By routine hybridization, multiple genes were successfully pyramided, thus generating novel rice lines with multiple resistances. For the rice breeding scientists at the grass-roots level, the resistance-resistance pyramiding is an effective approach to breed high resistance cultivars.抗源的发掘和利用是创新抗稻瘿蚊育种材料的有效途径，笔者在广西品种资源中发现了新的抗性品种GX—M001，经与抗蚊青占等位性测定，初步认为其与抗蚊青占基因（GM6）不等位，可能是一个新的抗性基因。为此，笔者选用GX—M001抗源与抗蚊青占等抗性品种杂交，培育出新的多抗创新材料。

关 键 词：Orseolia oryzae （Wood-Mason） Pyramiding via hybridization Rice breeding 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治]