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): 2333-2341.

• 观赏植物 • 上一篇    下一篇

蕙兰B类MADS-box基因的克隆及表达分析

向 林,秦德辉,李小白,李伯钧,郭方其,吴 超,孙崇波*   

  1. (浙江省农业科学院园艺研究所,杭州 310021)
  • 收稿日期:2011-07-07 修回日期:2011-10-24 出版日期:2011-12-25 发布日期:2011-12-25
  • 通讯作者: 孙崇波

Cloning and Expression Analysis of B Class MADS-box Genes from Cymbidium faberi

XIANG Lin,QIN De-hui,LI Xiao-bai,LI Bo-jun,GUO Fang-qi,WU Chao,and SUN Chong-bo*   

  1. (Institute of Horticulture,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China)
  • Received:2011-07-07 Revised:2011-10-24 Online:2011-12-25 Published:2011-12-25
  • Contact: SUN Chong-bo

摘要: 采用RT-PCR结合RACE技术从蕙兰(Cymbidium faberi)中分离到3个B类MADS-box基因CfGLO、CfDEF1和CfDEF2,分别编码210、222和227个氨基酸。系统进化树分析显示,CfGLO属于PI/GLO类基因,CfDEF1和CfDEF2分别属于PaleoAP3组基因的PeMADS2类基因和PeMADS3类基因。RT-PCR和实时荧光定量表达分析表明,CfDEF1在2、3轮花器官侧瓣、唇瓣和蕊柱中强烈表达,在萼片中不表达;CfDEF2在1、2、3轮花器官中都表达,在营养组织中不表达;而CfGLO在所有组织中都表达,说明3个基因在蕙兰花器官的形成过程中可能扮演着不同的角色。此外,3个基因都在蕙兰幼嫩子房中有表达,显示其可能在蕙兰子房的形成过程中起一定作用。

关键词: 蕙兰, B类MADS-box基因, 花, 发育, 实时荧光定量表达

Abstract: In this study,three B-class genes,CfGLO,CfDEF1 and CfDEF2 were isolated from Cymbidium faberi by RT-PCR and RACE-PCR techniques. Sequence analysis showed that CfGLO,CfDEF1 and CfDEF2 encode a putative protein of 210,222,227 amino acids,respectively. Phylogenetic tree analysis indicated that CfGLO belong to PI/GLO clade,and CfDEF1 and CfDEF2 belong to PeMADS3 clade and PeMADS2 clade of MADS-box gene family,respectively. RT-PCR and real-time quantitative PCR demonstrated that CfDEF1 was strongly expressed in 2,3 whorls organ,i.e. lips,petals and column,while absent in whorl 1(sepals);CfDEF2 was expressed in whorls 1,2 and 3,while absent in vegetative tissues;Whereas CfGLO was expressed in all tissues. The results suggested that the three genes may play different roles in floral organs formation of C. faberi. In addition,the three genes all expressed in immature ovary,the results displayed that they may regulate the ovary development of C. faberi.

Key words: Cymbidium faberi, B class MADS-box gene, flower, development, real-time quantitative PCR

中图分类号: