Physiological and transcriptome analyses of Chinese cabbage in response to drought stress  

作　　者：Lin Chen Chao Li Jiahao Zhang Zongrui Li Qi Zeng Qingguo Sun Xiaowu Wang Limin Zhao Lugang Zhang Baohua Li 

机构地区：[1]State Key Laboratory for Crop Stress Resistance and High-Efficiency Production,College of Horticulture,Northwest A&F University,Yangling 712100,China [2]Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China

出　　处：《Journal of Integrative Agriculture》2024年第7期2255-2269,共15页农业科学学报（英文版）

基　　金：supported by the National Key Research and Development Program of China(2022YFF1003003);the National Natural Science Foundation of China(32070333);the Startup Funding(Z111021922)from Northwest A&F University,China。

摘　　要：Chinese cabbage is an important leafy vegetable crop with high water demand and susceptibility to drought stress.To explore the molecular mechanisms underlying the response to drought,we performed a transcriptome analysis of drought-tolerant and-sensitive Chinese cabbage genotypes under drought stress,and uncovered core drought-responsive genes and key signaling pathways.A co-expression network was constructed by a weighted gene coexpression network analysis(WGCNA)and candidate hub genes involved in drought tolerance were identified.Furthermore,abscisic acid(ABA)biosynthesis and signaling pathways and their drought responses in Chinese cabbage leaves were systemically explored.We also found that drought treatment increased the antioxidant enzyme activities and glucosinolate contents significantly.These results substantially enhance our understanding of the molecular mechanisms underlying drought responses in Chinese cabbage.

关 键 词：Chinese cabbage drought stress abscisic acid weighted gene co-expression network analysis GLUCOSINOLATE 

分 类 号：S634.1[农业科学—蔬菜学]