virus resistance gene
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2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chihiro Ikeda ◽  
Kazuo Taku ◽  
Tsumugi Miyazaki ◽  
Rikako Shirai ◽  
Richard S. Nelson ◽  
...  

AbstractThe tobacco virus resistance gene N contains four introns. Transient expression of transcripts from an N transgene containing these introns and driven by the native promoter in the presence of the elicitor of tobacco mosaic virus resulted in its increased expression. The requirement of the native promoter, the elicitor, or the individual introns for enhanced expression of N has not been fully studied. Here, we determined that 35S promoter-driven N transcript expression could be enhanced in the presence of the four introns regardless of the co-expression of the virus elicitor in tobacco. Function analyses using a series of N transgenes with different combination of introns revealed that the presence of intron 1 more so than intron 2 allowed higher accumulation of premature and mature N transcripts; however, both introns were important for not only enhanced gene expression but also for induction of cell death in tobacco and induced local resistance to spread of virus in Nicotiana benthamiana. Our findings indicate that introns 1 and 2 cooperatively contribute to N expression and virus resistance.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yinlei Wang ◽  
Jing Jiang ◽  
Liping Zhao ◽  
Rong Zhou ◽  
Wengui Yu ◽  
...  

An amendment to this paper has been published and can be accessed via a link at the top of the paper.


2020 ◽  
Vol 8 (2) ◽  
pp. 196-201 ◽  
Author(s):  
Ju-Won Kang ◽  
Sais-Beul Lee ◽  
Ji-Yun Lee ◽  
Young-Ho Kwon ◽  
So-Myeong Lee ◽  
...  

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