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Bioinformatics Analysis of the Lipoxygenase Gene Family in Radish (Raphanus sativus) and Functional Characterization in Response to Abiotic and Biotic Stresses

文献类型： 外文期刊

作者： Wang, Jinglei 1 ; Hu, Tianhua 1 ; Wang, Wuhong 1 ; Hu, Haijiao 1 ; Wei, Qingzhen 1 ; Wei, Xiaochun 2 ; Bao, Chonglai 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Vegetables Res, Hangzhou 310021, Zhejiang, Peoples R China

2.Henan Acad Agr Sci, Inst Hort, Zhengzhou 450002, Henan, Peoples R China

关键词： radish; lipoxygenase (LOX); gene family; abiotic stress; tandem duplication

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）

ISSN：

年卷期： 2019 年 20 卷 23 期

页码：

收录情况： SCI

摘要： Lipoxygenases (LOXs) are non-heme iron-containing dioxygenases involved in many developmental and stress-responsive processes in plants. However, little is known about the radish LOX gene family members and their functions in response to biotic and abiotic stresses. In this study, we completed a genome-wide analysis and expression profiling of RsLOX genes under abiotic and biotic stress conditions. We identified 11 RsLOX genes, which encoded conserved domains, and classified them in 9-LOX and 13-LOX categories according to their phylogenetic relationships. The characteristic structural features of 9-LOX and 13-LOX genes and the encoded protein domains as well as their evolution are presented herein. A qRT-PCR analysis of RsLOX expression levels in the roots under simulated drought, salinity, heat, and cold stresses, as well as in response to a Plasmodiophora brassicae infection, revealed three tandem-clustered RsLOX genes that are involved in responses to various environmental stresses via the jasmonic acid pathway. Our findings provide insights into the evolution and potential biological roles of RsLOXs related to the adaptation of radish to stress conditions.

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