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Upland cotton is susceptible to Verticillium wilt. Infection with Verticillium wilt will greatly reduce cotton yield. Island cotton has a good resistance to Verticillium wilt, so cloning disease resistance related genes from island cotton into upland cotton can improve the resistance of upland cotton to Verticillium wilt.
On April 14, 2020, Qi Junsheng team of China Agricultural University published a research paper entitled "gbat11 gene cloned from Gossypium barbadense media resistance to Verticillium Wilt in Gossypium hirsutum" online in Journal of cotton research.
The researchers found and cloned a new gene, gbat11. The gene was specifically induced by Verticillium dahliae in Gossypium hirsutum and overexpressed gbat11 in Gossypium hirsutum, which could significantly enhance the resistance of Gossypium hirsutum to Verticillium wilt. It was also found that overexpression of gbat11 in Upland Cotton could not only significantly improve the resistance to Verticillium wilt, but also increase the number of bolls per plant. Transcriptome analysis and RT-PCR showed that overexpression of gbat11 could simultaneously activate fls2, BAK1 and other disease resistance genes in the pathway of plant extracellular pathogenic molecular immune pattern (PTI) and intracellular pathogenic factor immune pattern (ETI).
The research shows that gbat11 plays a very important role in cotton resistance to Verticillium wilt, and it is of great significance to cultivate cotton varieties with resistance to Verticillium Wilt and high yield.
Fig. 2 corresponding relationship between gbat11 expression and disease resistance
Fig. 5 disease resistance, yield performance and statistical results of over expressed gbat11 cotton line
Qiu Tingting and Wang Yanjun of Agricultural University of China are the co first authors of this paper, and Qi Junsheng of Agricultural University of China is the corresponding author. The research was supported by the national key R & D Program (2016yfd0101904).
Title: GbAt11 gene cloned from Gossypium barbadense mediates resistance to Verticillium wilt in Gossypium hirsutum
Authors: QIU Tingting, WANG Yanjun, JIANG Juan, ZHAO Jia, WANG Yanqing & QI Junsheng
Journal of Cotton Research. 2020, 3: 9
https://doi.org/10.1186/s42397-020-00047-3
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