De Novo Assembly and Discovery of Genes That Involved in Drought Tolerance in the Common Vetch
文献类型： 外文期刊
作者： Zhu, Yongqun 1 ; Liu, Qiuxu 2 ; Xu, Wenzhi 1 ; Zhang, Jianhua 1 ; Wang, Xie 1 ; Nie, Gang 2 ; Yao, Li 1 ; Wang, Hong 1 ; Lin 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Inst Soil & Fertilizer Res, Chengdu 610066, Sichuan, Peoples R China
2.Sichuan Agr Univ, Anim Sci & Technol Coll, Dept Grassland Sci, Chengdu 611130, Sichuan, Peoples R China
关键词： common vetch; next-generation sequencing; differentially expressed genes; drought
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN： 1422-0067
年卷期： 2019 年 20 卷 2 期
页码：
收录情况： SCI
摘要： The common vetch (Vicia sativa) is often used as feed for livestock because of its high nutritional value. However, drought stress reduces forage production through plant damage. Here, we studied the transcriptional profiles of common vetch exposed to drought in order to understand the molecular mechanisms of drought tolerance in this species. The genome of the common vetch has not been sequenced, therefore we used Illumina sequencing to generate de novo transcriptomes. Nearly 500 million clean reads were used to generate 174,636 transcripts, including 122,299 unigenes. In addition, 5313 transcription factors were identified and these transcription factors were classified into 79 different gene families. We also identified 11,181 SSR loci from di- to hexa-nucleotides whose repeat number was greater than five. On the basis of differentially expressed genes, Gene Ontology analysis identified many drought-relevant categories, including "oxidation-reduction process", "lipid metabolic process" and "oxidoreductase activity". In addition to these, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis identified pathways, such as "Plant hormone signal transduction", "Glycolysis/Gluconeogenesis" and "Phenylpropanoid biosynthesis", as differentially expressed in the plants exposed to drought. The expression results in this study will be useful for further extending our knowledge on the drought tolerance of common vetch.
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