Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production

Abstract Background Flavonoids have a wide range of biological activities in plant development, stress resistance and human health, etc. R2R3-MYBs are one of the key elements in regulation of flavonoid production, but their functional importance in Betula platyphylla remains elusive. Methods The ful...

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Main Authors: Huimin Liu, Zhongyang Yu, Guizhi Fan, Baojiang Zheng
Format: Article
Language:English
Published: SpringerOpen 2022-06-01
Series:Chemical and Biological Technologies in Agriculture
Subjects:
Online Access:https://doi.org/10.1186/s40538-022-00301-7
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author Huimin Liu
Zhongyang Yu
Guizhi Fan
Baojiang Zheng
author_facet Huimin Liu
Zhongyang Yu
Guizhi Fan
Baojiang Zheng
author_sort Huimin Liu
collection DOAJ
description Abstract Background Flavonoids have a wide range of biological activities in plant development, stress resistance and human health, etc. R2R3-MYBs are one of the key elements in regulation of flavonoid production, but their functional importance in Betula platyphylla remains elusive. Methods The full-length transcriptome data of 30-day-old seedlings of Betula platyphylla were used to identify BpR2R3-MYB family genes, and their gene structure, chromosome distribution and syntenic relationships were predicted by bioinformatics methods. Agrobacterium-mediated transient transformation was used to verify the function of BpR2R3-pMYB15 in flavonoid production. Results 44 BpR2R3-MYB family genes expressed in seedlings of Betula platyphylla were identified and found to be unevenly distributed in 11 chromosomes. Among them, 90.90% of the BpR2R3-MYBs had introns, and only four genes had no introns. Five gene pairs with segment duplication were found, and their Ka/Ks ratios were less than 1. Thirty orthologs between Betula platyphylla and Arabidopsis thaliana and 68 orthologs between Betula platyphylla and Populus trichocarpa were detected. Five BpR2R3-MYBs were clustered with R2R3-MYB genes related to flavonoid synthesis, and BpR2R3-pMYB15 had the highest correlation coefficients between the value of gene expression and flavonoid content. BpR2R3-pMYB15 was cloned, and its transient overexpression obtained using Agrobacterium-mediated transformation positively regulated flavonoid production. Conclusion This work enriches the collection of R2R3-MYBs related to flavonoid production in seedlings of Betula platyphylla. Graphical Abstract
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spelling doaj.art-b6ae2d9091e24692aa71e034625cf5482022-12-22T02:32:49ZengSpringerOpenChemical and Biological Technologies in Agriculture2196-56412022-06-019111410.1186/s40538-022-00301-7Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid productionHuimin Liu0Zhongyang Yu1Guizhi Fan2Baojiang Zheng3Key Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministey of Education, Northeast Forestry UniversityKey Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministey of Education, Northeast Forestry UniversityKey Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministey of Education, Northeast Forestry UniversityKey Laboratory of Saline-Alkali Vegetation Ecology Restoration, Ministey of Education, Northeast Forestry UniversityAbstract Background Flavonoids have a wide range of biological activities in plant development, stress resistance and human health, etc. R2R3-MYBs are one of the key elements in regulation of flavonoid production, but their functional importance in Betula platyphylla remains elusive. Methods The full-length transcriptome data of 30-day-old seedlings of Betula platyphylla were used to identify BpR2R3-MYB family genes, and their gene structure, chromosome distribution and syntenic relationships were predicted by bioinformatics methods. Agrobacterium-mediated transient transformation was used to verify the function of BpR2R3-pMYB15 in flavonoid production. Results 44 BpR2R3-MYB family genes expressed in seedlings of Betula platyphylla were identified and found to be unevenly distributed in 11 chromosomes. Among them, 90.90% of the BpR2R3-MYBs had introns, and only four genes had no introns. Five gene pairs with segment duplication were found, and their Ka/Ks ratios were less than 1. Thirty orthologs between Betula platyphylla and Arabidopsis thaliana and 68 orthologs between Betula platyphylla and Populus trichocarpa were detected. Five BpR2R3-MYBs were clustered with R2R3-MYB genes related to flavonoid synthesis, and BpR2R3-pMYB15 had the highest correlation coefficients between the value of gene expression and flavonoid content. BpR2R3-pMYB15 was cloned, and its transient overexpression obtained using Agrobacterium-mediated transformation positively regulated flavonoid production. Conclusion This work enriches the collection of R2R3-MYBs related to flavonoid production in seedlings of Betula platyphylla. Graphical Abstracthttps://doi.org/10.1186/s40538-022-00301-7R2R3-MYBGene familyFlavonoidSeedlings of Betula platyphyllaFull-length transcriptome
spellingShingle Huimin Liu
Zhongyang Yu
Guizhi Fan
Baojiang Zheng
Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
Chemical and Biological Technologies in Agriculture
R2R3-MYB
Gene family
Flavonoid
Seedlings of Betula platyphylla
Full-length transcriptome
title Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
title_full Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
title_fullStr Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
title_full_unstemmed Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
title_short Genome-level analysis of BpR2R3-MYB family genes transcribed in seedlings of Betula platyphylla and BpR2R3-MYB15 enhanced flavonoid production
title_sort genome level analysis of bpr2r3 myb family genes transcribed in seedlings of betula platyphylla and bpr2r3 myb15 enhanced flavonoid production
topic R2R3-MYB
Gene family
Flavonoid
Seedlings of Betula platyphylla
Full-length transcriptome
url https://doi.org/10.1186/s40538-022-00301-7
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AT guizhifan genomelevelanalysisofbpr2r3mybfamilygenestranscribedinseedlingsofbetulaplatyphyllaandbpr2r3myb15enhancedflavonoidproduction
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