花生重组近交系黄曲霉产毒抗性的变异与相关分析
화생중조근교계황곡매산독항성적변이여상관분석
Evaluation of resistance to aflatoxin formation in peanut RILs
  • 万方数据
    中国油料作物学报 중국유료작물학보
    CHINESE JOURNAL OF OIL CROP SCIENCES
    2009年 4期 455-459 ,共5页

    田立荣%廖伯寿%王圣玉%姜慧芳%雷永%晏立英%黄家权%李栋%任小平%肖洋

    전립영%료백수%왕골옥%강혜방%뢰영%안립영%황가권%리동%임소평%초양

    花生%重组近交系%黄曲霉产毒抗性 花生%重組近交繫%黃麯黴產毒抗性
    화생%중조근교계%황곡매산독항성
    Peanut%Recombined inbreed lines (RILs)%Resistance to aflatoxin formation
    以不同遗传背景的亲本远杂9102与中花5号杂交构建重组近交系(RIL)群体,进行人工接种和黄曲霉毒素含量测定.结果表明,RIL群体对黄曲霉的产毒抗性存在较大变异,产毒抗性为受亲本加性基因控制的数量性状,而且存在超亲优势,因此利用微效加性基因的累加和互补提高产毒抗性的潜力较大.相关性分析表明,RIL群体中黄曲霉产毒抗性与百果重、含油量、青枯病抗性之间相关性不显著,不存在紧密连锁关系.初步筛选到大果、高油、兼抗青枯病与黄曲霉产毒的优异材料,可以作为进一步育种研究的核心亲本.
    이불동유전배경적친본원잡9102여중화5호잡교구건중조근교계(RIL)군체,진행인공접충화황곡매독소함량측정.결과표명,RIL군체대황곡매적산독항성존재교대변이,산독항성위수친본가성기인공제적수량성상,이차존재초친우세,인차이용미효가성기인적루가화호보제고산독항성적잠력교대.상관성분석표명,RIL군체중황곡매산독항성여백과중、함유량、청고병항성지간상관성불현저,불존재긴밀련쇄관계.초보사선도대과、고유、겸항청고병여황곡매산독적우이재료,가이작위진일보육충연구적핵심친본.
    Through artificial inoculation with A.flavus,aflatoxins(AFT) were quantitatively determined in 117 peanut recombinant inbred lines (RILs) derived from a cross of Yuanza 9102×Zhonghua 5. Significant variation of aflatoxin content was observed among the RILs and several recombinants with AFT less than the parental line were identified,which indicated that there was a feasible potential for improving the resistance to AFT formation by accelerating the concerned minor effect genes or locus.According to the correlation analysis,there was no significant correlation between the resistance to aflatoxin formation and pod mass,oil content and resistance to bacterial wilt (BW).Several elite lines with large pod,high oil content and desirable resistance to both BW and aflatoxin were identified,and these lines could be used in further breeding.
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