文献类型： 外文期刊

作者： Wang, Guang-Long ¹ ; Liu, Ling-Yi ² ; Wang, Qi-Zhang ¹ ; Ren, Xu-Qin ² ; Xiong, Ai-Sheng ³ ; Tian, Jie ¹ ;

作者机构： 1.Qinghai Univ, Qinghai Key Lab Vegetable Genet & Physiol, Acad Agr & Forestry Sci, Qinghai Acad Agr & Forestry Sci, Xining 810016, Peoples R China

2.Huaiyin Inst Technol, Sch Life Sci & Food Engn, Huaian 223003, Peoples R China

3.Nanjing Agr Univ, Coll Hort, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China

关键词： drought stress; abscisic acid; calcium signaling; RNA sequencing; garlic

期刊名称：APPLIED SCIENCES-BASEL （ 影响因子：2.838； 五年影响因子：2.921 ）

ISSN：

年卷期： 2022 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Garlic (Allium sativum L.) is one of the most important vegetable crops, and breeding drought-tolerant varieties is a vital research goal. However, the underlying molecular mechanisms in response to drought stress in garlic are still limited. In this study, garlic seedlings were subjected to 15% PEG6000 for 0, 1, 4, and 12 h, respectively, to simulate drought stress. Changes of transcriptomes as a result of drought stress in garlic leaves were determined by de novo assembly using the Illumina platform. In total, 96,712 unigenes and 11,936 differentially expressed genes (DEGs) were identified in the presence of drought conditions. Transcriptome profiling revealed that the DEGs were mainly enriched in the biosynthesis of secondary metabolites, MAPK signaling pathway, starch and sucrose metabolism, phenylpropanoid biosynthesis, and plant hormone signal transduction. Genes involved in abscisic acid and calcium signaling were further investigated and discussed. Our results indicated that a coordinated interplay between abscisic acid and calcium is required for drought-induced response in garlic.