https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2009, Vol. 36 ›› Issue (12): 1783-1790.

• 观赏植物 • 上一篇    下一篇

离体条件下5 - 氮杂胞嘧啶核苷对菊花DNA甲基化和表型性状的影响

王子成*; 聂丽娟; 何艳霞   

  1. (河南大学农业生物技术研究所, 河南开封 475004)
  • 收稿日期:2009-06-09 修回日期:2009-10-10 出版日期:2009-12-25 发布日期:2009-12-25
  • 通讯作者: 王子成

The Effect of 5-azacytidine to the DNA Methylation and MorphogenesisCharacter of Chrysanthemum During in Vitro Growth3,

WANG Zi-cheng *; NIE Li-juan, HE Yan-xia   

  1. ( The Institute of Agriculture Biotechnology, Henan University, Kaifeng, Henan 475004, China)
  • Received:2009-06-09 Revised:2009-10-10 Online:2009-12-25 Published:2009-12-25
  • Contact: WANG Zi-cheng

摘要: 采用离体处理的方法, 初步研究了5 - 氮杂胞嘧啶核苷(5-azaC) 对菊花的影响。结果表明,
500μmol·L - 1以上时有致死效应, 100μmol·L - 1以上时能抑制离体材料的生长发育, 而各浓度对菊花的丛生芽均具有抑制作用, 且这种抑制作用具有时间累加效应和剂量累计效应。10μmol·L - 1以下时使菊花开花时间有不同程度的提早, 这一效应具有稳定性, 并可通过营养繁殖进行遗传。MSAP技术分析表明,处理材料基因组DNA甲基化水平明显降低, 在去处理后的继代过程中仍有部分位点保持低甲基化状态。

关键词: 菊花, 5 - 氮杂胞嘧啶核苷, 丛生芽, 分化, DNA甲基化

Abstract: The effect of DNA methylation inhibitor ( 5-azacytidine, 5-azaC) to chrysanthemum (Dendranthem a ×grandiflorum ) has been studied by the method of in vitro treatment. The results indicated that 500μmol·L - 1 of 5-azaC caused death, above 100μmol·L - 1 of 5-azaC inhibited the materials’development. The multiple buds differentiation of chrysanthemum was inhibited by every concentration of 5-azaC and the inhibiting effect of 5-azaC has time and dose additive effect. 5-azaC treatment at low concentration induced
the flowering early, this effect were stability and could be inherited through asexual multiplication. The results of MSAP (methylation sensitive amplified polymorphism technique) indicated that, the genomic of treated materials DNA methylation decreased distinctly. Part of the sites kept demethylation status in the successive transfer culture when 5-azaC removed.

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