稻褐飞虱新抗源的鉴定和利用  

Evaluation and Utilization of Resistant Sources to Brown Planthopper in Rice

作　　者：陈英之[1,2] 韦燕萍[3] 李孝琼[1,2] 陈乔[1,2] 孙荣科[1,2] 杨朗[4] 黄凤宽[4] 韦素美[4] 刘丕庆 黄大辉[5] 张月雄[5] 李容柏[1,2] 

机构地区：[1]广西亚热带资源保护利用重点实验室,广西南宁530005 [2]广西作物遗传改良生物技术重点开放实验室,广西南宁530007 [3]广西农科院农业科技信息研究所,广西南宁530007 [4]广西农科院植物保护研究所,广西南宁530007 [5]广西农科院水稻研究所,广西南宁530007

出　　处：《西南农业学报》2009年第6期1581-1588,共8页Southwest China Journal of Agricultural Sciences

基　　金：广西科学基金项目(桂科基0833025);广西科技创新能力与条件建设资助项目(桂科能05112001-1A1;桂科能0630006-5B;桂科能0630006-5F;桂科能0815011-6-1);国家高技术研究发展计划(863计划)课题(2006AA1021C5;2006AA100101-2;2007AA021405;2007AA10Z191);973前期基础研究专项(2007CB116305);广西教育厅研究生创新基金课题(A31015)

摘　　要：通过筛选抗源、抗性遗传分析，水稻品系BPHP06对褐飞虱生物型Ⅱ和孟加拉型具有高水平广谱抗性，其抗性遗传受2对显性基因控制。通过抗性基因聚合可以有效地获得高抗广谱的抗虫材料，甚至可以从4—6个抗性基因重组后代中获得1级的高抗材料。同时，利用褐飞虱优异抗源BPHR96，获得一大批抗褐飞虱的创新种质。研究结果表明，BPHR96是具有重要利用价值的BPH抗性资源。抗性基因重组与聚合是培育广谱持久高抗性水稻品种的有效途径，特别是利用BPHR96与其他抗源进行抗性基因重组和聚合可为水稻育种提供更理想的抗性。BPHR 96 high resistant to biotypes II, Bangladesh and Nanning field population of mix biotypes of the BPH, with its resistance derived from Oryza rufipogon Griff. , was found through screening resistance sources, genetic analysis of resistance, recombination and pyrami- ding of resistance genes. The BPH resistance of BPHR96 was governed by two pairs of dominant genes. The natural BPH resistance sources contrelled by two-pair gene showed higher level and broader spectrum of resistance. Artificially pyramiding different resistance genes could ercat high and bread-spectrum resistant materials. Particularly, recombination of 4 to 6 resistance genes could obtain scale 1 class of high resistant breeding lines and the rccombinants of resistance from BPHR 96 with uther sources presented highest BPH resistance. A number of breeding lines with their BPH resistance transferred from BPHR 96 were developed in the study. It was concluded that the BPHR 96 was of great useful value as a BPH resistant source. Recombination and pyramiding of resistance genes were efficient method to breed rice varieties with high, broad-spectrum and durable BPH resistance. The use of resistance from BPHR 96 and recombination and accumulation with other resistant sources would provide the most ideal resistance to rice breeding.

关 键 词：稻褐飞虱 抗源 BPHR96 遗传 基因重组 基因聚合 水稻抗性育种 普通野生稻 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]