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 ›› 2011, Vol. 38 ›› Issue (12): 2273-2280.

• 果树 • 上一篇    下一篇

桃花芽休眠解除SSH文库构建及相关基因表达分析

李 玲,王 慧,谭 钺,王 宇,陈修德,李冬梅,高东升*     

  1. (山东农业大学园艺科学与工程学院,作物生物学国家重点实验室,山东泰安 271018)
  • 收稿日期:2011-07-17 修回日期:2011-12-05 出版日期:2011-12-25 发布日期:2011-12-25
  • 通讯作者: 高东升

Construction of the Suppression Subtractive Hybridization Library and Analysis of Related Genes of Floral Buds in Prunus persica During Dormancy-releasing  

LI Ling,WANG Hui,TAN Yue,WANG Yu,CHEN Xiu-de,LI Dong-mei,and GAO Dong-sheng*   

  1. (College of Horticulture Science and Engineering,State Key Laboratory of Crop Biology,Shandong Agricultural University,Tai’an,Shandong 271018,China)
  • Received:2011-07-17 Revised:2011-12-05 Online:2011-12-25 Published:2011-12-25
  • Contact: GAO Dong-sheng

摘要: 为了深入研究桃花芽休眠的分子机制,利用抑制差减杂交技术(SSH),以解除休眠期的花芽的RNA为实验方Tester,以休眠期花芽的RNA为驱动方Driver,构建休眠解除cDNA文库,测定分析了180 个上调表达的cDNA 片段,测序成功128个,除去冗余序列,得到28个单一序列。对序列进行BLAST比对及功能注释,发现这些序列分别属于新陈代谢、氧化还原、信号转导、抗性相关等类别基因。运用qRT-PCR 技术对HisH3、Dhn 和Metallothionein基因进行检测,结果表明它们在花芽休眠解除过程中均上调表达。

关键词: 桃, 花芽, 休眠, 抑制差减杂交, 基因表达, qRT-PCR

Abstract: To better understand the molecular and physiological mechanisms of seasonal bud dormancy in perennial trees,the differentially expressed genes in peach[Prunus persica(L.)Batsch]floral buds during dormancy-releasing were identified by suppression subtractive hybridization(SSH). One hundred and eighty positive clones were selected and sequenced from the libraries totally,and 28 unique genes were obtained. According to the BLAST screening and functional annotation,metabolism,oxidation reduction,signal transduction and defense-related genes were identified with high frequencies in fertility cDNA library. In SSH library three representative genes,HisH3,Dhn and Metallothionein were selected and analyzed qRT-PCR. The results showed that they were up-regulated during dormancy-releasing of floral buds.

Key words: peach, floral bud, dormancy, suppression subtractive hybridization(SSH), gene expression, qRT-PCR

中图分类号: