ISSN 2736-1756
Advanced Journal of Microbiology Research ISSN 2736-1756 Vol. 19 (4), pp. 001-003, April, 2025. www.internationalscholarsjournals.org/ © International Scholars Journals
Short Communication
Extraction of the NBS-LRR Class Resistance Gene (I2 Gene) from the Heamsona Tomato Cultivar
Pritesh Parmar* and R. B. Subramanian
B R D School of Biosciences, Sardar Patel University, Post Box no. 39, Vallbh Vidya Nagar- 388120 (Gujarat) India.
Accepted 20 March, 2025
Abstract
Three races of Fusarium oxysporum f. sp. lycopersici race 1, 2 and 3 are identified depending on the avirulence protein or effector protein secreted by fungal pathogen during the host colonization in tomato. These effector proteins are recognized by the host innate immune system based on R gene expressions that are I1, I2 and I3 in tomato for each races. Amongst the three, I2 protein has been cloned and characterized for the incompatibility against race 2 type of the pathogens. In India race 1 type of F. oxysporum f. sp. lycopersici observed commonly which require presence of I1 gene in tomato plant for the incompatibility reactions but in the present study, I2 gene was partially isolated from the tomato cultivar Heamsona and observed to be resistance against race 1 type of pathogen.
Key words: Fusarium wilt, race, R-gene, resistance, tomato.