Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)

Abstract Fructokinases (FRKs) are pivotal enzymes involved in sugar metabolism and plant growth regulation. In this study, a total of 38 BnFRK genes were identified in the Brassica napus genome through a comprehensive genome-wide analysis. Phylogenetic classification divided these genes into four gr...

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Main Authors: Rui Yang, Jindong Chen, Ying Huang, Lingli Xie, Jinsong Xu, Le Xu, Xuekun Zhang, Benbo Xu
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Plant Biology
Subjects:
Online Access:https://doi.org/10.1186/s12870-025-06964-2
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author Rui Yang
Jindong Chen
Ying Huang
Lingli Xie
Jinsong Xu
Le Xu
Xuekun Zhang
Benbo Xu
author_facet Rui Yang
Jindong Chen
Ying Huang
Lingli Xie
Jinsong Xu
Le Xu
Xuekun Zhang
Benbo Xu
author_sort Rui Yang
collection DOAJ
description Abstract Fructokinases (FRKs) are pivotal enzymes involved in sugar metabolism and plant growth regulation. In this study, a total of 38 BnFRK genes were identified in the Brassica napus genome through a comprehensive genome-wide analysis. Phylogenetic classification divided these genes into four groups, with conserved motif and gene structure analyses indicating both functional conservation and divergence. Synteny and collinearity analyses revealed extensive gene duplication events, particularly within Group IV, suggesting lineage-specific expansion after polyploidization. Promoter cis-element analysis indicated that BnFRKs are potentially involved in hormone response and abiotic stress regulation. Transcriptome data and qRT-PCR validation demonstrated that several BnFRKs, especially BnFRK12, showed significant induction under salt, alkali, low nitrogen and osmotic stress conditions, highlighting their potential roles in stress adaptation. These findings provide a foundation for further functional characterization of BnFRK genes and their application in improving stress resilience in rapeseed.
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institution Kabale University
issn 1471-2229
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publishDate 2025-07-01
publisher BMC
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series BMC Plant Biology
spelling doaj-art-cfa9261dd1a94245a03f9fc787fa59892025-08-20T04:01:56ZengBMCBMC Plant Biology1471-22292025-07-0125111410.1186/s12870-025-06964-2Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)Rui Yang0Jindong Chen1Ying Huang2Lingli Xie3Jinsong Xu4Le Xu5Xuekun Zhang6Benbo Xu7MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityMARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze UniversityAbstract Fructokinases (FRKs) are pivotal enzymes involved in sugar metabolism and plant growth regulation. In this study, a total of 38 BnFRK genes were identified in the Brassica napus genome through a comprehensive genome-wide analysis. Phylogenetic classification divided these genes into four groups, with conserved motif and gene structure analyses indicating both functional conservation and divergence. Synteny and collinearity analyses revealed extensive gene duplication events, particularly within Group IV, suggesting lineage-specific expansion after polyploidization. Promoter cis-element analysis indicated that BnFRKs are potentially involved in hormone response and abiotic stress regulation. Transcriptome data and qRT-PCR validation demonstrated that several BnFRKs, especially BnFRK12, showed significant induction under salt, alkali, low nitrogen and osmotic stress conditions, highlighting their potential roles in stress adaptation. These findings provide a foundation for further functional characterization of BnFRK genes and their application in improving stress resilience in rapeseed.https://doi.org/10.1186/s12870-025-06964-2Brassica napusFRK gene familyAbiotic stressGene expression
spellingShingle Rui Yang
Jindong Chen
Ying Huang
Lingli Xie
Jinsong Xu
Le Xu
Xuekun Zhang
Benbo Xu
Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
BMC Plant Biology
Brassica napus
FRK gene family
Abiotic stress
Gene expression
title Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
title_full Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
title_fullStr Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
title_full_unstemmed Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
title_short Identification and expression analysis of the FRK gene family in Oilseed (Brassica napus L.)
title_sort identification and expression analysis of the frk gene family in oilseed brassica napus l
topic Brassica napus
FRK gene family
Abiotic stress
Gene expression
url https://doi.org/10.1186/s12870-025-06964-2
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