西南农业学报
西南農業學報
서남농업학보
SOUTHWEST CHINA JOURNAL OF AGRICULTURAL SCIENCES
2009年
6期
1581-1588
,共8页
陈英之%韦燕萍%李孝琼%陈乔%孙荣科%杨朗%黄凤宽%韦素美%刘丕庆%黄大辉%张月雄%李容柏
陳英之%韋燕萍%李孝瓊%陳喬%孫榮科%楊朗%黃鳳寬%韋素美%劉丕慶%黃大輝%張月雄%李容柏
진영지%위연평%리효경%진교%손영과%양랑%황봉관%위소미%류비경%황대휘%장월웅%리용백
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
稻褐飛虱%抗源%BPHR96%遺傳%基因重組%基因聚閤%水稻抗性育種%普通野生稻
도갈비슬%항원%BPHR96%유전%기인중조%기인취합%수도항성육충%보통야생도
Nilaparvata lugens St(a)l%Resistant sources%Inheritance%Gene recombination%Gene pyramiding%Rice breeding%Oryza rufipogon
通过筛选抗源、抗性遗传分析,水稻品系BPHR96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.
通過篩選抗源、抗性遺傳分析,水稻品繫BPHR96對褐飛虱生物型Ⅱ和孟加拉型具有高水平廣譜抗性,其抗性遺傳受2對顯性基因控製.通過抗性基因聚閤可以有效地穫得高抗廣譜的抗蟲材料,甚至可以從4~6箇抗性基因重組後代中穫得1級的高抗材料.同時,利用褐飛虱優異抗源BPHR96,穫得一大批抗褐飛虱的創新種質.研究結果錶明,BPHR96是具有重要利用價值的BPH抗性資源,抗性基因重組與聚閤是培育廣譜持久高抗性水稻品種的有效途徑,特彆是利用BPHR96與其他抗源進行抗性基因重組和聚閤可為水稻育種提供更理想的抗性.
통과사선항원、항성유전분석,수도품계BPHR96대갈비슬생물형Ⅱ화맹가랍형구유고수평엄보항성,기항성유전수2대현성기인공제.통과항성기인취합가이유효지획득고항엄보적항충재료,심지가이종4~6개항성기인중조후대중획득1급적고항재료.동시,이용갈비슬우이항원BPHR96,획득일대비항갈비슬적창신충질.연구결과표명,BPHR96시구유중요이용개치적BPH항성자원,항성기인중조여취합시배육엄보지구고항성수도품충적유효도경,특별시이용BPHR96여기타항원진행항성기인중조화취합가위수도육충제공경이상적항성.
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 pyramiding of resistance genes . The BPH resistance of BPHR96 was governed by two pairs of dominant genes. The natural BPH resistance sources controlled by two-pair gene showed higher level and broader spectrum of resistance. Artificially pyramiding different resistance genes could creat high and broad-spectrum resistant materials. Particularly, recombination of 4 to 6 resistance genes could obtain scale 1 class of high resistant breeding lines and the recombinants of resistance from BPHR 96 with other 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.
