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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (33): 112-117.doi: 10.11924/j.issn.1000-6850.2013-1518

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

基于玉米重组自交系生育期的相关性状分析

李清超 梁黔云 文琼 吴瑞   

  • 收稿日期:2013-05-30 修回日期:2013-06-28 出版日期:2013-11-25 发布日期:2013-11-25

Analysis of Flowering-Related Traits in Maize (Zea mays L.)Using RIL

  • Received:2013-05-30 Revised:2013-06-28 Online:2013-11-25 Published:2013-11-25

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摘要： 摘要：本试验以K12为母本、黄早四为父本，杂交获得F1，以单粒传法选育单株分别进行自交6代构建重组自交系（Recombinant inbred line，RIL）分离群体为供试材料，通过对抽雄、散粉，吐丝等花期性状的考察，分析RIL群体对两亲本的改良效果。结果表明，RIL群体的抽雄、散粉，吐丝等花期性状均有不同程度的改变，且达到了较好的相关效果。多数性状的表型变异系数在群体内有不同程度的增加，符合RIL群体的特点。频率分布符合正态分布，表明群体具有进一步QTL研究的潜力。

关键词: 排放, 排放

Abstract: Abstract: In present studies, we selected K12 and HuangZaoSi as the Parents to Synthesis 162 recombinant inbred lines by using single seed descend method. By detecting the flowering traits (i.e. tasseling、anthesising、silking、ASI and TAI), we intend to analyze the improvement for the Parents. The results indicated that these flowering traits in different degree of change, and achieved the good related effect. Most coefficients of phenotypic variation within groups have different degrees of increase, in line with the characteristics of recombinant inbred lines. Frequency distribution is consistent with normal distribution, indicating that the population has a useful value for further QTL studies.