利用VIGS技术研究马铃薯抗晚疫病基因R3a和RB的信号传导

被引:32
作者
崔艳红
贾芝琪
李颖
黄三文
机构
[1] 中国农业科学院蔬菜花卉研究所
关键词
晚疫病; 烟草; 病毒诱导基因沉默; 瞬时表达;
D O I
10.16420/j.issn.0513-353x.2009.07.001
中图分类号
S532 [马铃薯(土豆)];
学科分类号
090104 [作物信息科学与技术];
摘要
利用VIGS技术,在烟草中沉默已知的抗病信号传导关键基因SIPK、NDR1、SGT1、HSP90、NPR1、Rar1、EDS1、WRKY1,再瞬时表达马铃薯抗病基因和其相应的无毒基因RB-Avrblb1和R3a-AvR3a,根据过敏反应(Hypersensitive Response,HR)是否被阻断来研究RB和R3a介导的抗病信号传导。结果发现SGT1和HSP90基因沉默阻断了HR反应的发生,表明SGT1和HSP90是参与RB和R3a抗病信号传导途径过程中的关键基因。该技术体系的建立,为发现新晚疫病抗病相关基因的功能验证提供了一个高效的技术平台。
引用
收藏
页码:997 / 1004
页数:8
相关论文
共 6 条
[1]
The C-terminal half of Phytophthora infestans RXLR effector AVR3a is sufficient to trigger R3a-mediated hypersensitivity and suppress INF1-induced cell death in Nicotiana benthamiana [J].
Bos, Jorunn I. B. ;
Kanneganti, Thirumala-Devi ;
Young, Carolyn ;
Cakir, Cahid ;
Huitema, Edgar ;
Win, Joe ;
Armstrong, Miles R. ;
Birch, Paul R. J. ;
Kamoun, Sophien .
PLANT JOURNAL, 2006, 48 (02) :165-176
[2]
The Rpi-blb2 gene from Solanum bulbocastanum is an Mi-1 gene homolog conferring broad-spectrum late blight resistance in potato [J].
van der Vossen, EAG ;
Gros, J ;
Sikkema, A ;
Muskens, M ;
Wouters, D ;
Wolters, P ;
Pereira, A ;
Allefs, S .
PLANT JOURNAL, 2005, 44 (02) :208-222
[3]
Expression of RPS4 in tobacco induces an AvrRps4-independent HR that requires EDS1, SGT1 and HSP90 [J].
Zhang, Y ;
Dorey, S ;
Swiderski, M ;
Jones, JDG .
PLANT JOURNAL, 2004, 40 (02) :213-224
[4]
Involvement of MEK1 MAPKK, NTF6 MAPK, WRKY/MYB transcription factors, COI1 and CTR1 in N-mediated resistance to tobacco mosaic virus [J].
Liu, YL ;
Schiff, M ;
Dinesh-Kumar, SP .
PLANT JOURNAL, 2004, 38 (05) :800-809
[5]
The R1 gene for potato resistance to late blight (Phytophthora infestans) belongs to the leucine zipper/NBS/LRR class of plant resistance genes [J].
Ballvora, A ;
Ercolano, MR ;
Weiss, J ;
Meksem, K ;
Bormann, CA ;
Oberhagemann, P ;
Salamini, F ;
Gebhardt, C .
PLANT JOURNAL, 2002, 30 (03) :361-371
[6]
A novel class of eukaryotic zinc-binding proteins is required for disease resistance signaling in barley and development in C-elegans [J].
Shirasu, K ;
Lahaye, T ;
Tan, MW ;
Zhou, FS ;
Azevedo, C ;
Schulze-Lefert, P .
CELL, 1999, 99 (04) :355-366