Genome-Wide Identification and Expression Analysis of <i>BrGeBP</i> Genes Reveal Their Potential Roles in Cold and Drought Stress Tolerance in <i>Brassica rapa</i>

Genome-Wide Identification and Expression Analysis of <i>BrGeBP</i> Genes Reveal Their Potential Roles in Cold and Drought Stress Tolerance in <i>Brassica rapa</i>

The <i>GLABROUS1 Enhancer Binding Protein (GeBP)</i> gene family is pivotal in regulating plant growth, development, and stress responses. However, the role of <i>GeBP</i> in <i>Brassica rapa</i> remains unclear. This study identifies 20 <i>BrGeBP</i>...

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Bibliographic Details
Main Authors:	Ruolan Wang, Xiaoyu Wu, Ziwen Wang, Xiaoyu Zhang, Luhan Chen, Qiaohong Duan, Jiabao Huang
Format:	Article
Language:	English
Published:	MDPI AG 2023-09-01
Series:	International Journal of Molecular Sciences
Subjects:	<i>Brassica rapa</i> <i>GeBP</i> expression profile bioinformatics analysis abiotic stress
Online Access:	https://www.mdpi.com/1422-0067/24/17/13597

Description
Summary:	The <i>GLABROUS1 Enhancer Binding Protein (GeBP)</i> gene family is pivotal in regulating plant growth, development, and stress responses. However, the role of <i>GeBP</i> in <i>Brassica rapa</i> remains unclear. This study identifies 20 <i>BrGeBP</i> genes distributed across 6 chromosomes, categorized into 4 subfamilies. Analysis of their promoter sequences reveals multiple stress-related elements, including those responding to drought, low temperature, methyl jasmonate (MeJA), and gibberellin (GA). Gene expression profiling demonstrates wide expression of <i>BrGeBPs</i> in callus, stem, silique, and flower tissues. Notably, <i>BrGeBP5</i> expression significantly decreases under low-temperature treatment, while <i>BrGeBP3</i> and <i>BrGeBP14</i> show increased expression during drought stress, followed by a decrease. Protein interaction predictions suggest that <i>BrGeBP14</i> homolog, <i>At5g28040</i>, can interact with DES1, a known stress-regulating protein. Additionally, microRNA172 targeting <i>BrGeBP5</i> is upregulated under cold tolerance. These findings underscore the vital role of <i>BrGeBPs</i> in abiotic stress tolerance. Specifically, <i>BrGeBP3</i>, <i>BrGeBP5,</i> and <i>BrGeBP14</i> show great potential for regulating abiotic stress. This study contributes to understanding the function of <i>BrGeBPs</i> and provides valuable insights for studying abiotic stress in <i>B. rapa</i>.
ISSN:	1661-6596 1422-0067