Phylogenomic Analysis of Cytochrome P450 Gene Superfamily and Their Association with Flavonoids Biosynthesis in Peanut (Arachis hypogaea L.)
文献类型： 外文期刊
作者： Zhang, Kun 1 ; Qin, Yongmei 1 ; Sun, Wei 3 ; Shi, Hourui 4 ; Zhao, Shuzhen 2 ; He, Liangqiong 5 ; Li, Changsheng 2 ; Zhao, Jin 1 ; Pan, Jiaowen 2 ; Wang, Guanghao 2 ; Han, Zhuqiang 5 ; Zhao, Chuanzhi 2 ; Yang, Xiangli 1 ;
作者机构： 1.Shandong Agr & Engn Univ, Coll Agr Sci & Technol, Jinan 250100, Peoples R China
2.Shandong Acad Agr Sci, Shandong Prov Key Lab Crop Genet Improvement Ecol, Inst Crop Germplasm Resources, Inst Biotechnol, Jinan 250100, Peoples R China
3.Linyi Acad Agr Sci, Linyi 276003, Peoples R China
4.Shandong Seed Management Stn, Jinan 250100, Peoples R China
5.Guangxi Acad Agr Sci, Cash Crop Res Inst, Nanning 530007, Peoples R China
关键词： A. hypogaea; cytochrome P450; expression pattern; flavonoid biosynthesis pathway
期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN：
年卷期： 2023 年 14 卷 10 期
页码：
收录情况： SCI
摘要： Cytochrome P450s (CYPs) constitute extensive enzyme superfamilies in the plants, playing pivotal roles in a multitude of biosynthetic and detoxification pathways essential for growth and development, such as the flavonoid biosynthesis pathway. However, CYPs have not yet been systematically studied in the cultivated peanuts (Arachis hypogaea L.), a globally significant cash crop. This study addresses this knowledge deficit through a comprehensive genome-wide analysis, leading to the identification of 589 AhCYP genes in peanuts. Through phylogenetic analysis, all AhCYPs were systematically classified into 9 clans, 43 gene families. The variability in the number of gene family members suggests specialization in biological functions. Intriguingly, both tandem duplication and fragment duplication events have emerged as pivotal drivers in the evolutionary expansion of the AhCYP superfamily. Ka/Ks analysis underscored the substantial influence of strong purifying selection on the evolution of AhCYPs. Furthermore, we selected 21 genes encoding 8 enzymes associated with the flavonoid pathway. The results of quantitative real-time PCR (qRT-PCR) experiments unveiled stage-specific expression patterns during the development of peanut testa, with discernible variations between pink and red testa. Importantly, we identified a direct correlation between gene expression levels and the accumulation of metabolites. These findings offer valuable insights into elucidating the comprehensive functions of AhCYPs and the underlying mechanisms governing the divergent accumulation of flavonoids in testa of different colors.
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