穿心莲中与穿心莲内酯生物合成相关的bZIP转录因子的基因组特征分析

Genomic characterization of bZIP transcription factors related to andrographolide biosynthesis in Andrographis paniculata.

作者信息

Guan Rui, Xu Shun, Lu Zhimei, Su Lirong, Zhang Libing, Sun Wei, Zhang Yu, Jiang Chunhong, Liu Zhongqiu, Duan Lixin, Ji Aijia

机构信息

Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.

Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, China Academy of Chinese Medical Sciences, Institute of Chinese Materia Medica, 100070 Beijing, China.

出版信息

Int J Biol Macromol. 2022 Dec 31;223(Pt A):1619-1631. doi: 10.1016/j.ijbiomac.2022.10.283. Epub 2022 Nov 8.

Abstract

The basic leucine zipper (bZIP) transcription factor family plays an important role in various biological processes in plants. Andrographis paniculata (Burm.f) Nees, belonging to the family Acanthaceae, has been widely used as an important traditional herb with a wide range of pharmacological activities, such as antivenom, antiretroviral, anticancer and so on. However, there was no comprehensive analysis of bZIP gene family in the Andrographis paniculata been reported. In this study, we identified 62 bZIPs in Andrographis paniculata and grouped them into 12 subfamilies through the phylogenetic tree analysis. The bZIPs in the same groups have similar motif composition, exon-intron structure and domain distribution. In addition, the RNA-seq data gave a reference for selecting candidate bZIPs to make further function verification. Lastly, qRT-PCR analyses revealed seven ApbZIPs (ApbZIP4, ApbZIP19, ApbZIP30, ApbZIP42, ApbZIP50, ApbZIP52, ApbZIP62) were the most highly expressed in leaf and significantly up-regulated with MeJA and ABA treatment which may be involved in biosynthesis regulation of andrographolide. These data pave the way for further revealing the function of the bZIPs in Andrographis paniculata.

摘要

基本亮氨酸拉链(bZIP)转录因子家族在植物的各种生物学过程中发挥着重要作用。穿心莲(Andrographis paniculata (Burm.f) Nees)属于爵床科,作为一种重要的传统草药被广泛使用,具有广泛的药理活性,如抗蛇毒、抗逆转录病毒、抗癌等。然而,尚未见关于穿心莲bZIP基因家族的全面分析报道。在本研究中,我们在穿心莲中鉴定出62个bZIP基因,并通过系统发育树分析将它们分为12个亚家族。同一组中的bZIP基因具有相似的基序组成、外显子-内含子结构和结构域分布。此外,RNA测序数据为选择候选bZIP基因进行进一步功能验证提供了参考。最后,实时定量PCR分析显示,7个穿心莲bZIP基因(ApbZIP4、ApbZIP19、ApbZIP30、ApbZIP42、ApbZIP50、ApbZIP52、ApbZIP62)在叶片中表达量最高,并且在茉莉酸甲酯(MeJA)和脱落酸(ABA)处理下显著上调,这可能参与穿心莲内酯的生物合成调控。这些数据为进一步揭示穿心莲中bZIP基因的功能铺平了道路。

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