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园艺学报 ›› 2003, Vol. 30 ›› Issue (6): 668-672.

• 研究论文 • 上一篇    下一篇

利用cDNA.AFLP技术鉴定甘蓝显性核不育基因相关表达序列

娄 平 王晓武 Guusje.Bonnema2 方智远   

  1. ( 中国农业科学院蔬菜花卉研究所,北京100081; [al~ratory of Plant Breeding,Wageningen University,Wageningen 6700AJ,Netherlards)
  • 收稿日期:2002-12-06 修回日期:2003-03-05 出版日期:2003-12-25 发布日期:2003-12-25

Gene Expression Associated 、 th Dominant M ale Sterility in Cabbage isRevealed by cDNA-Am

Lou Ping ,Wang Xiaowu ,Guusje.Bonnema2,and Fang Zhiyua   

  1. ( Institute ofVegetables and Flowers, Chinese Academy ofAgricuhural Sciences,8e0
  • Received:2002-12-06 Revised:2003-03-05 Online:2003-12-25 Published:2003-12-25

摘要: 利用cDNA—AFLP技术, 比较分析了一个甘蓝与两个青花菜自交系回交转育的显性核基因雄性
不育材料与对应可育亲本植株花蕾发育过程中基因表达的差异。将花蕾混合提取RNA合成eDNA建立6个
eDNA池,分析128个弓l物组合获得了26000个片段,共鉴定24个片段与雄性不育相关,其中13条表现为
质的差异,11条表现为量的差异;将其中引物组合A16T15产生的300 bp左右的差异片段进行克隆测序,
BLAST结果表明,该序列与花粉特异性相关的硫氧还蛋白氨基酸序列同源性达89% 。

关键词: 甘蓝, 显性核不育, eDNA—AFIJ~, 差异表达序列

Abstract: Abstract: cDNA—AFLP was used to detect diferentially expressed genes during flower bud development of
male sterile an d fertile lines of cabbage an d broccoli. Expression profiles were generated around 26,000 cDNA frag—
ments(128 primer combinations).Transcriptional changes were observed for 24 cDNA fragments,from which,
1 3 were only expressed in fertile buds, while the other 1 1 were upregulated in fertile buds. Sequencing of a 300 bp
diferential fragment amplified by primer combination A16T15 revealed 89% similarity to the gene thioredoxin,
which is related to pollen development in the Brassica family.

Key words: Cabbage, Dominant male sterility, cDNA—AFLP, Diferentially expressed genes

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