The Responses of the Lipoxygenase Gene Family to Salt and Drought Stress in Foxtail Millet (<i>Setaria italica</i>)
Qianxiang Zhang,
Yaofei Zhao,
Jinli Zhang,
Xukai Li,
Fangfang Ma,
Ming Duan,
Bin Zhang,
Hongying Li
Affiliations
Qianxiang Zhang
College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Yaofei Zhao
Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Jinli Zhang
College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Xukai Li
Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Fangfang Ma
Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Ming Duan
Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Bin Zhang
College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Hongying Li
Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, China
Plant lipoxygenases (LOXs), a kind of non-heme iron-containing dioxygenases, participate plant physiological activities (especially in response to biotic and abiotic stresses) through oxidizing various lipids. However, there was few investigations on LOXs in foxtail millet (Setaria italica). In this study, we identified the LOX gene family in foxtail millet, and divided the total 12 members into three sub-families on the basis of their phylogenetic relationships. Under salt and drought stress, LOX genes showed different expression patterns. Among them, only SiLOX7 showed up-regulated expression in Yugu1 (YG1) and Qinhuang2 (QH2), two stress-tolerant varieties, indicating that SiLOX7 may play an important role in responses to abiotic stress. Our research provides a basis for further investigation of the role of LOX genes in the adaptation to abiotic stresses and other possible biological functions in foxtail millet.
