摘要
利用白菜 (BrassicacampestrisL .ssp .chinensis)×芜菁 (B .campestrisL .ssp .rapiferaMetzg)杂交建立的F2 分离群体 ,构建了含 131个遗传标记 ,覆盖 1810 .9cM的遗传图谱。采用区间作图法对地上部主要农艺性状进行了QTLs分析 ,发现与叶型、叶柄形状、株高等 8个重要农艺性状连锁的 2 4个QTLs位点 ,各性状QTL的数目在 1～ 5个之间 ,各位点间存在一定的相关关系。
A genetic linkage map comprised of 131 loci was constructed with a F 2 population derived from inter-subspecific cross between Brassica campestris L. ssp. chinensis variety 'aijiaohuang' and B. Campestris L. ssp. rapifera variety 'qisihai', which covered 1 810.9cM in 12 linkage groups. The interval mapping was used to determine QTLs associated with eight morphological traits in Chinese cabbage. 24 QTLs affecting eight traits of shoots were identified using Mapmaker/QTL1.1 software. The QTLs was associated with 8.9%- 86.5% of the phenotypic variation in different traits. Two QTLs were identified for leaf length and leaf number respectively; three QTLs for leaf width and plant height, four QTLs for number of leaf lobes and petiole width, five QTLs for petiole length.
出处
《中国农业科学》
CAS
CSCD
北大核心
2002年第8期969-974,共6页
Scientia Agricultura Sinica
基金
国家自然科学基金项目 ( 39870 5 0 9)
浙江省自然科学基金项目 ( 30 12 88)
