Genome-wide identification, characterization, and expression analysis of the MAPK gene family in Nardostachys jatamansi (D. Don) DC

IF 2.2 3区 生物学 Q4 CELL BIOLOGY
Shubham Joshi, Jhilmil Nath, Rohit Joshi
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引用次数: 0

Abstract

Mitogen-activated protein kinase (MAPK) cascade is a widely distributed signaling pathway, which is involved in growth, development, and stress responses in plants. Nardostachys jatamansi (Caprifoliaceae) is a perennial, high-altitude Himalayan medicinal plant, which experiences varying environmental fluctuations throughout its life span. However, how the fluctuating environment is regulated via MAPKs in high-altitude medicinal plants, such as Nardostachys jatamansi as well as in other members of the Caprifoliaceae family, is poorly understood. In the present study, Lonicera japonica Thunb. (Caprifoliacae) was used as a model for genome-wide understanding of MAPKs in the Caprifoliaceae family; further, Nardostachys jatamansi was used for expression profiling of MAPKs under various growth stages and abiotic stress conditions. Twenty LjMAPKs and 20 NjMAPKs were identified from the Lonicera japonica genome and Nardostachys jatamansi transcriptome database. The identification, characterization, subcellular localization, phylogenetic analysis, chromosomal localization, gene structure, synteny, and cis-acting elements of the LjMAPKs and NjMAPKs gene family were evaluated using in silico approaches. Phylogenetic and other in silico investigations showed maximum similarity between LjMAPKs and NjMAPKs protein sequences. Cis-regulatory elements identified in the promoter region of LjMAPKs included development, light, phytohormone, and stress-responsive elements. Tissue-specific expression profiling showed ubiquitous expression of MAPKs in both L. japonica and N. jatamansi. However, differential transcript abundance was observed in leaf and root tissues of NjMAPKs under varying abiotic stress conditions. The present study’s findings provided a fundamental understanding of MAPKs in L. japonica and N. jatamansi and may contribute towards a better understanding of the molecular mechanisms regulating plant development and abiotic stress response.

Abstract Image

Nardostachys jatamansi (D. Don) DC 中 MAPK 基因家族的全基因组鉴定、特征描述和表达分析
丝裂原活化蛋白激酶(MAPK)级联是一种广泛分布的信号通路,参与植物的生长、发育和胁迫反应。Nardostachys jatamansi(木贼科)是喜马拉雅山脉的一种多年生高海拔药用植物,在其整个生命周期中会经历不同的环境波动。然而,人们对高海拔药用植物(如桔梗以及其他木犀科植物)如何通过 MAPKs 调节波动环境还知之甚少。本研究以忍冬科植物忍冬(Lonicera japonica Thunb.)为模型,对忍冬科植物的 MAPKs 进行了全基因组范围的了解;此外,还利用桔梗对不同生长阶段和非生物胁迫条件下的 MAPKs 进行了表达谱分析。从忍冬基因组和桔梗转录组数据库中鉴定出了 20 个 LjMAPK 和 20 个 NjMAPK。采用硅学方法对 LjMAPKs 和 NjMAPKs 基因家族的鉴定、特征、亚细胞定位、系统发育分析、染色体定位、基因结构、同源关系和顺式作用元件进行了评估。系统发育和其他硅学研究表明,LjMAPKs 和 NjMAPKs 蛋白序列之间的相似性最大。在 LjMAPKs 启动子区域发现的顺式调节元件包括发育、光照、植物激素和胁迫响应元件。组织特异性表达谱分析显示,MAPKs 在 L. japonica 和 N. jatamansi 中均有普遍表达。然而,在不同的非生物胁迫条件下,NjMAPKs在叶和根组织中的转录本丰度有所不同。本研究的发现有助于从根本上了解粳稻和桔梗中的 MAPKs,并有助于更好地理解调控植物发育和非生物胁迫响应的分子机制。
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来源期刊
CiteScore
5.00
自引率
7.70%
发文量
71
审稿时长
6-12 weeks
期刊介绍: Founded in 1965, In Vitro Cellular & Developmental Biology - Plant is the only journal devoted solely to worldwide coverage of in vitro biology in plants. Its high-caliber original research and reviews make it required reading for anyone who needs comprehensive coverage of the latest developments and state-of-the-art research in plant cell and tissue culture and biotechnology from around the world.
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