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白菜型油菜和菜薹的InDel 标记开发及其RILs群体遗传连锁图谱的构建
引用本文:孟霖,刘博,林良斌,程峰,王晓武,武剑.白菜型油菜和菜薹的InDel 标记开发及其RILs群体遗传连锁图谱的构建[J].园艺学报,2012,39(8):1491-1500.
作者姓名:孟霖  刘博  林良斌  程峰  王晓武  武剑
作者单位:(1 云南农业大学农学与生物技术学院,昆明 650201;2 中国农业科学院蔬菜花卉研究所,北京 100081)
基金项目:中央级公益性科研院所基本科研业务费专项
摘    要: 通过白菜型油菜‘R-O-18’和菜薹‘L58’的基因组重测序数据与白菜基因组的参考序列(‘Chiifu-401-42’的基因组序列)的比对,在全基因组范围内检测到了18 479 个短插入缺失变异位点(≤5 bp)。从中挑选了500 个插入/缺失片段为4 ~ 5 bp 的InDel 变异位点,将其设计成InDel 分子标记并进行试验验证,结果有452 个标记通过PCR 扩增出单一条带,但仅有106 个在‘R-O-18’和‘L58’间表现出多态性,346 个没有多态性,48 个在PCR 中没有扩增。亲本间具有多态性的106 个InDel 标记可用来检测以‘R-O-18’和‘L58’为亲本构建的RILs 基因型,并构建了一张包含99 个标记的遗传连锁图谱。

关 键 词:菜薹  油菜  白菜  插入/缺失  全基因组重测序  Illumina  测序  遗传连锁图

Development of InDel Markers for Brassica campestris and Genetic Linkage Map Construction of the RILs Population
MENG Lin,LIU Bo,LIN Liang-bin,CHENG Feng,WANG Xiao-wu,and WU Jian.Development of InDel Markers for Brassica campestris and Genetic Linkage Map Construction of the RILs Population[J].Acta Horticulturae Sinica,2012,39(8):1491-1500.
Authors:MENG Lin  LIU Bo  LIN Liang-bin  CHENG Feng  WANG Xiao-wu  and WU Jian
Institution:(1College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming 650201,China;2Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China)
Abstract:Genome-wide Brassica campestris short Insertion/Deletion length polymorphisms(InDels)(≤ 5 bp)were detected by aligning whole genome re-sequencing data from two B. campestris accessions,‘R-O-18’and‘L58’,to the reference genome sequence of‘Chiifu-401-42’. In total, we identified 18 479 InDel polymorphsms between‘R-O-18’and‘L58’. A total of 500 InDel polymorphisms(4–5 bp in length)were converted to InDel markers and experimentally validated. Of the selected 500 InDel polymorphisms ,452 yielded a single PCR fragment , but only 106 showed polymorphism between‘R-O-18’and‘L58’,48 did not amplify a product,346 showed no polymorphism. These 106 InDel markers were used to screen the genotype of RILs developed from the crossing of ‘R-O-18’and‘L58’. A genetic linkage map contained 99 InDel markers was constructed.
Keywords:Brassica campestris  insertion/deletions(InDels)  whole genome re-sequencing  Illumina sequencing  genetic linkage map
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