华北农学报
華北農學報
화북농학보
ACTA AGRICULTURAE BOREALI-SINICA
2014年
2期
85-88
,共4页
张云辉%张所兵%林静%汪迎节%方先文
張雲輝%張所兵%林靜%汪迎節%方先文
장운휘%장소병%림정%왕영절%방선문
水稻%条纹叶枯病%群体分离分析法%QTL定位
水稻%條紋葉枯病%群體分離分析法%QTL定位
수도%조문협고병%군체분리분석법%QTL정위
Rice%Rice stripe virus%Bulked segregant analysis%QTL mapping
通过前期对江苏水稻地方品种抗条纹叶枯病资源的筛选获得的一份高抗条纹叶枯病水稻品种旱稻,配制其与条纹叶枯病感病品种武育粳3号杂交组合,采用田间自然接种鉴定方法,以病情指数为表型值,对141个F2单株的F2:3株系进行了条纹叶枯病抗性鉴定。同时利用群体分离分析法( Bulked segregant analysis,BSA法)对抗/感DNA池分析发现第11染色体SSR标记RM209、RM21与条纹叶枯病抗性有明显的连锁关系。利用基于完备复合区间作图方法的QTL检测软件(QTL IciMapping V3.2)在第11染色体上检测到一个条纹叶枯病抗性相关QTL,位于SSR标记RM209和RM21之间,LOD值为13.25,可解释表型变异38.39%,加性效应为负值,表明该数量性状基因座对水稻条纹叶枯病的抗性来自抗病亲本旱稻。
通過前期對江囌水稻地方品種抗條紋葉枯病資源的篩選穫得的一份高抗條紋葉枯病水稻品種旱稻,配製其與條紋葉枯病感病品種武育粳3號雜交組閤,採用田間自然接種鑒定方法,以病情指數為錶型值,對141箇F2單株的F2:3株繫進行瞭條紋葉枯病抗性鑒定。同時利用群體分離分析法( Bulked segregant analysis,BSA法)對抗/感DNA池分析髮現第11染色體SSR標記RM209、RM21與條紋葉枯病抗性有明顯的連鎖關繫。利用基于完備複閤區間作圖方法的QTL檢測軟件(QTL IciMapping V3.2)在第11染色體上檢測到一箇條紋葉枯病抗性相關QTL,位于SSR標記RM209和RM21之間,LOD值為13.25,可解釋錶型變異38.39%,加性效應為負值,錶明該數量性狀基因座對水稻條紋葉枯病的抗性來自抗病親本旱稻。
통과전기대강소수도지방품충항조문협고병자원적사선획득적일빈고항조문협고병수도품충한도,배제기여조문협고병감병품충무육갱3호잡교조합,채용전간자연접충감정방법,이병정지수위표형치,대141개F2단주적F2:3주계진행료조문협고병항성감정。동시이용군체분리분석법( Bulked segregant analysis,BSA법)대항/감DNA지분석발현제11염색체SSR표기RM209、RM21여조문협고병항성유명현적련쇄관계。이용기우완비복합구간작도방법적QTL검측연건(QTL IciMapping V3.2)재제11염색체상검측도일개조문협고병항성상관QTL,위우SSR표기RM209화RM21지간,LOD치위13.25,가해석표형변이38.39%,가성효응위부치,표명해수량성상기인좌대수도조문협고병적항성래자항병친본한도。
The Jiangsu landrace rice variety Handao was previously identified as high resistance to rice stripe disease (RSV). A total of 141 F2:3 lines derived from the cross of Handao and Wuyujing 3,a variety high sensitive to RSV,were investigated by natural infection method in field,and the disease rating index was scored. Analysis of the resistant/sensitive pools by bulked segregant analysis indicated that the SSR markers RM209 and RM21 on rice chromosome 11 obviously linked to RSV resistance. A QTL for RSV was detected on rice chromosome 11 between RM209 and RM21 by the software QTL IciMapping V3 . 2 based on the principle of inclusive composite interval mapping (ICIM) with the maximum LOD score 13. 25,which explained 38. 39% of the trait variance. Additive effects of qSTV11HD was negative,indicating that the resistance allele was inherited from Handao.