Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize

Abstract Background In plants, the basic helix-loop-helix (bHLH) transcription factors play key roles in diverse biological processes. Genome-wide comprehensive and systematic analyses of bHLH proteins have been well conducted in Arabidopsis, rice, tomato and other plant species. However, only few o...

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Main Authors: Tingting Zhang, Wei Lv, Haisen Zhang, Lin Ma, Pinghua Li, Lei Ge, Gang Li
Format: Article
Language:English
Published: BMC 2018-10-01
Series:BMC Plant Biology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12870-018-1441-z
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author Tingting Zhang
Wei Lv
Haisen Zhang
Lin Ma
Pinghua Li
Lei Ge
Gang Li
author_facet Tingting Zhang
Wei Lv
Haisen Zhang
Lin Ma
Pinghua Li
Lei Ge
Gang Li
author_sort Tingting Zhang
collection DOAJ
description Abstract Background In plants, the basic helix-loop-helix (bHLH) transcription factors play key roles in diverse biological processes. Genome-wide comprehensive and systematic analyses of bHLH proteins have been well conducted in Arabidopsis, rice, tomato and other plant species. However, only few of bHLH family genes have been functional characterized in maize. Results In this study, our genome-wide analysis identified 208 putative bHLH family proteins (ZmbHLH proteins) in maize (Zea mays). We classified these proteins into 18 subfamilies by comparing the ZmbHLHs with Arabidopsis thaliana bHLH proteins. Phylogenetic analysis, conserved protein motifs, and exon-intron patterns further supported the evolutionary relationships among these bHLH proteins. Genome distribution analysis found that the 208 ZmbHLH loci were located non-randomly on the ten maize chromosomes. Further, analysis of conserved cis-elements in the promoter regions, protein interaction networks, and expression patterns in roots, leaves, and seeds across developmental stages, suggested that bHLH family proteins in maize are probably involved in multiple physiological processes in plant growth and development. Conclusion We performed a genome-wide, systematic analysis of bHLH proteins in maize. This comprehensive analysis provides a useful resource that enables further investigation of the physiological roles and molecular functions of the ZmbHLH transcription factors.
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spelling doaj.art-ecaa6d0f75d74483b3074f4b4f7bc9be2022-12-21T19:46:02ZengBMCBMC Plant Biology1471-22292018-10-0118111410.1186/s12870-018-1441-zGenome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maizeTingting Zhang0Wei Lv1Haisen Zhang2Lin Ma3Pinghua Li4Lei Ge5Gang Li6State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityState Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural UniversityAbstract Background In plants, the basic helix-loop-helix (bHLH) transcription factors play key roles in diverse biological processes. Genome-wide comprehensive and systematic analyses of bHLH proteins have been well conducted in Arabidopsis, rice, tomato and other plant species. However, only few of bHLH family genes have been functional characterized in maize. Results In this study, our genome-wide analysis identified 208 putative bHLH family proteins (ZmbHLH proteins) in maize (Zea mays). We classified these proteins into 18 subfamilies by comparing the ZmbHLHs with Arabidopsis thaliana bHLH proteins. Phylogenetic analysis, conserved protein motifs, and exon-intron patterns further supported the evolutionary relationships among these bHLH proteins. Genome distribution analysis found that the 208 ZmbHLH loci were located non-randomly on the ten maize chromosomes. Further, analysis of conserved cis-elements in the promoter regions, protein interaction networks, and expression patterns in roots, leaves, and seeds across developmental stages, suggested that bHLH family proteins in maize are probably involved in multiple physiological processes in plant growth and development. Conclusion We performed a genome-wide, systematic analysis of bHLH proteins in maize. This comprehensive analysis provides a useful resource that enables further investigation of the physiological roles and molecular functions of the ZmbHLH transcription factors.http://link.springer.com/article/10.1186/s12870-018-1441-zMaizeGenome-wide analysisBasic helix-loop-helix transcription factorsExpression analysisDevelopment
spellingShingle Tingting Zhang
Wei Lv
Haisen Zhang
Lin Ma
Pinghua Li
Lei Ge
Gang Li
Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
BMC Plant Biology
Maize
Genome-wide analysis
Basic helix-loop-helix transcription factors
Expression analysis
Development
title Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
title_full Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
title_fullStr Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
title_full_unstemmed Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
title_short Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize
title_sort genome wide analysis of the basic helix loop helix bhlh transcription factor family in maize
topic Maize
Genome-wide analysis
Basic helix-loop-helix transcription factors
Expression analysis
Development
url http://link.springer.com/article/10.1186/s12870-018-1441-z
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