GbAt11 gene cloned from Gossypium barbadense mediates resistance to Verticillium wilt in Gossypium hirsutum  

作　　者：QIU Tingting WANG Yanjun JIANG Juan ZHAO Jia WANG Yanqing QI Junsheng 

机构地区：[1]State Key Laboratory of Plant Physiology and Biochemistry,Department of Plant Science,College of Biology Science,China Agricultural University,Beijing 100193,China

出　　处：《Journal of Cotton Research》2020年第2期69-78,共10页棉花研究（英文）

基　　金：financially supported by the National Key Research and Development Program of China(2016YFD0101904)。

摘　　要：Background:Gossypium hirsutum is highly susceptible to Verticillium wilt,and once infected Verticillium wilt,its yield is greatly reduced.But G.barbadense is highly resistant to Verticillium wilt.It is possible that transferring some disease-resistant genes from G.barbadense to G.hirsutum may contribute to G.hirsutum resistance to Verticillium wilt.Result:Here,we described a new gene in G.barbadense encoding AXMN Toxin Induced Protein-11,Gb At11,which is specifically induced by Verticillium dahliae in G.barbadense and enhances Verticillium wilt resistance in G.hirsutum.Overexpression in G.hirsutum not only significantly improves resistance to Verticillium wilt,but also increases the boll number per plant.Transcriptome analysis and real-time polymerase chain reaction showed that Gb At11 overexpression can simultaneously activate FLS2,BAK1 and other genes,which are involved in ETI and PTI pathways in G.hirsutum.Conclusion:These data suggest that Gb At11 plays a very important role in resistance to Verticillium wilt in cotton.And it is significant for improving resistance to Verticillium wilt and breeding high-yield cotton cultivars.

关 键 词：Gossypium barbadense GbAt11 Verticillium wilt RESISTANCE 

分 类 号：S435.621[农业科学—农业昆虫与害虫防治]