NDLI: Genome-wide analysis of PIN genes in cultivated peanuts (Arachis hypogaea L.): identification, subcellular localization, evolution, and expression patterns

Content Provider	Springer Nature : BioMed Central
Author	Bian, Jianxin Cui, Yuanyuan Li, Jihua Guan, Yu Tian, Shuhua Liu, Xiaoqin
Abstract	Background Auxin is an important hormone in plants and the PIN-FORMED (PIN) genes are essential to auxin distribution in growth and developmental processes of plants. Peanut is an influential cash crop, but research into PIN genes in peanuts remains limited. Results In this study, 16 PIN genes were identified in the genome of cultivated peanut, resolving into four subfamilies. All PIN genes were predicted to be located in the plasma membrane and a subcellular location experiment confirmed this prediction for eight of them. The gene structure, cis-elements in the promoter, and evolutionary relationships were elucidated, facilitating our understanding of peanut PINs and their evolution. In addition, the expression patterns of these PINs in various tissues were analyzed according to a previously published transcriptome dataset and qRT-PCR, which gave us a clear understanding of the temporal and spatial expression of PIN genes in different growth stages and different tissues. The expression trend of homologous genes was similar. AhPIN2A and AhPIN2B exhibited predominant expression in roots. AhPIN1A-1 and AhPIN1B-1 displayed significant upregulation following peg penetration, suggesting a potential close association with peanut pod development. Furthermore, we presented the gene network and gene ontology enrichment of these PINs. Notably, AhABCB19 exhibited a co-expression relationship with AhPIN1A and AhPIN1B-1, with all three genes displaying higher expression levels in peanut pegs and pods. These findings reinforce their potential role in peanut pod development. Conclusions This study details a comprehensive analysis of PIN genes in cultivated peanuts and lays the foundation for subsequent studies of peanut gene function and phenotype.
Related Links	https://bmcgenomics.biomedcentral.com/counter/pdf/10.1186/s12864-023-09723-5.pdf
Ending Page	14
Page Count	14
Starting Page	1
File Format	HTM / HTML
ISSN	14712164
DOI	10.1186/s12864-023-09723-5
Journal	BMC Genomics
Issue Number	1
Volume Number	24
Language	English
Publisher	BioMed Central
Publisher Date	2023-10-21
Access Restriction	Open
Subject Keyword	Life Sciences Microarrays Proteomics Animal Genetics and Genomics Microbial Genetics and Genomics Plant Genetics and Genomics Peanut PINs Genome-wide identification Subcellular localization Expression patterns
Content Type	Text
Resource Type	Article
Subject	Biotechnology Genetics
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	4.1/2023

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