NtRRS3 gene and application thereof in resisting bacterial wilt by tobaccos

The invention discloses a tobacco CC-NBS-LRR resistance gene NtRRS3 gene and application thereof in resisting bacterial wilt by tobaccos, and belongs to the field of plant gene engineering. The NtRRS3 gene obtained through cloning from a bacterial wilt resisting variety Yanyan 97 of the tobaccos is supplied firstly, and a nucleotide sequence of the NtRRS3 gene is shown as SEQ ID No.1. According to the application, the NtRRS3 gene is transferred into the tobaccos to carry out functional verification. Shown by a result, an over-expressed NtRRS3 gene can remarkably improve the resistance of susceptible varieties to bacterial wilt. The separated NtRRS3 gene is an important gene for regulating and controlling the resistance of the tobaccos to the bacterial wilt, can be used to improve the resistance of the tobaccos to the bacterial wilt, and has an important application prospect in the aspects of molecular breeding for resisting bacterial wilt by the tobaccos and the like.