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Su Y, Dai S, Li N, Gentile A, He C, Xu J, Duan K, Wang X, Wang B, Li D. Unleashing the Potential of EIL Transcription Factors in Enhancing Sweet Orange Resistance to Bacterial Pathologies: Genome-Wide Identification and Expression Profiling. Int J Mol Sci 2023; 24:12644. [PMID: 37628825 PMCID: PMC10454048 DOI: 10.3390/ijms241612644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/02/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
The ETHYLENE INSENSITIVE3-LIKE (EIL) family is one of the most important transcription factor (TF) families in plants and is involved in diverse plant physiological and biochemical processes. In this study, ten EIL transcription factors (CsEILs) in sweet orange were systematically characterized via whole-genome analysis. The CsEIL genes were unevenly distributed across the four sweet orange chromosomes. Putative cis-acting regulatory elements (CREs) associated with CsEIL were found to be involved in plant development, as well as responses to biotic and abiotic stress. Notably, quantitative reverse transcription polymerase chain reaction (qRT-PCR) revealed that CsEIL genes were widely expressed in different organs of sweet orange and responded to both high and low temperature, NaCl treatment, and to ethylene-dependent induction of transcription, while eight additionally responded to Xanthomonas citri pv. Citri (Xcc) infection, which causes citrus canker. Among these, CsEIL2, CsEIL5 and CsEIL10 showed pronounced upregulation. Moreover, nine genes exhibited differential expression in response to Candidatus Liberibacter asiaticus (CLas) infection, which causes Citrus Huanglongbing (HLB). The genome-wide characterization and expression profile analysis of CsEIL genes provide insights into the potential functions of the CsEIL family in disease resistance.
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Affiliation(s)
- Yajun Su
- National Citrus Improvement Center, Hunan Agricultural University (Changsha Branch), Changsha 410128, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China (X.W.)
| | - Suming Dai
- National Citrus Improvement Center, Hunan Agricultural University (Changsha Branch), Changsha 410128, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
| | - Na Li
- National Citrus Improvement Center, Hunan Agricultural University (Changsha Branch), Changsha 410128, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
| | - Alessandra Gentile
- Department of Agriculture and Food Science, University of Catania, 95123 Catania, Italy;
| | - Cong He
- National Citrus Improvement Center, Hunan Agricultural University (Changsha Branch), Changsha 410128, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
| | - Jing Xu
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China (X.W.)
| | - Kangle Duan
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China (X.W.)
| | - Xue Wang
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China (X.W.)
| | - Bing Wang
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China (X.W.)
| | - Dazhi Li
- National Citrus Improvement Center, Hunan Agricultural University (Changsha Branch), Changsha 410128, China
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China
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