Genome-Wide Characterization of the Phenylalanine Ammonia-Lyase Gene Family and Their Potential Roles in Response to Aspergillus flavus L. Infection in Cultivated Peanut (Arachis hypogaea L.)
文献类型： 外文期刊
作者： Chai, Pengpei 1 ; Cui, Mengjie 1 ; Zhao, Qi 1 ; Chen, Linjie 2 ; Guo, Tengda 1 ; Guo, Jingkun 1 ; Wu, Chendi 1 ; Du, Pei 1 ; Liu, Hua 2 ; Xu, Jing 2 ; Zheng, Zheng 2 ; Huang, Bingyan 2 ; Dong, Wenzhao 2 ; Han, Suoyi 1 ; Zhang, Xinyou 2 ;
作者机构： 1.Zhengzhou Univ, Shennong Lab, Postgrad T&R Base, Xinxiang 453500, Peoples R China
2.Henan Acad Agr Sci, Inst Crop Mol Breeding, Key Lab Oil Crops Huang Huai Hai Plains, Henan Prov Key Lab Oil Crop Improvement,Minist Agr, Zhengzhou 450002, Peoples R China
关键词： phenylalanine ammonia-lyase; peanut; A. flavus; phylogenetic analysis; cis-element analysis; expression analysis
期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN：
年卷期： 2024 年 15 卷 3 期
页码：
收录情况： SCI
摘要： Phenylalanine ammonia-lyase (PAL) is an essential enzyme in the phenylpropanoid pathway, in which numerous aromatic intermediate metabolites play significant roles in plant growth, adaptation, and disease resistance. Cultivated peanuts are highly susceptible to Aspergillus flavus L. infection. Although PAL genes have been characterized in various major crops, no systematic studies have been conducted in cultivated peanuts, especially in response to A. flavus infection. In the present study, a systematic genome-wide analysis was conducted to identify PAL genes in the Arachis hypogaea L. genome. Ten AhPAL genes were distributed unevenly on nine A. hypogaea chromosomes. Based on phylogenetic analysis, the AhPAL proteins were classified into three groups. Structural and conserved motif analysis of PAL genes in A. hypogaea revealed that all peanut PAL genes contained one intron and ten motifs in the conserved domains. Furthermore, synteny analysis indicated that the ten AhPAL genes could be categorized into five pairs and that each AhPAL gene had a homologous gene in the wild-type peanut. Cis-element analysis revealed that the promoter region of the AhPAL gene family was rich in stress- and hormone-related elements. Expression analysis indicated that genes from Group I (AhPAL1 and AhPAL2), which had large number of ABRE, WUN, and ARE elements in the promoter, played a strong role in response to A. flavus stress.
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