Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress
SQUAMOSA promoter binding protein (SBP) is a kind of plant-specific transcription factor, which plays a crucial role in stress responses and plant growth and development by activating and inhibiting the transcription of multiple target genes. In this study, a total of 30 SBP genes were identified fr...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/12/4/413 |
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| author | Qing Guo Li Li Kai Zhao Wenjing Yao Zihan Cheng Boru Zhou Tingbo Jiang |
| author_facet | Qing Guo Li Li Kai Zhao Wenjing Yao Zihan Cheng Boru Zhou Tingbo Jiang |
| author_sort | Qing Guo |
| collection | DOAJ |
| description | SQUAMOSA promoter binding protein (SBP) is a kind of plant-specific transcription factor, which plays a crucial role in stress responses and plant growth and development by activating and inhibiting the transcription of multiple target genes. In this study, a total of 30 SBP genes were identified from <i>Populus trichocarpa</i> genome and randomly distributed on 16 chromosomes in poplar. According to phylogenetic analysis, the <i>PtSBPs</i> can be divided into six categories, and 14 out of the genes belong to VI. Furthermore, the SBP genes in VI were proved to have a targeting relationship with <i>miR156</i>. The homeopathic element analysis showed that the promoters of poplar SBP genes mainly contain the elements involved in growth and development, abiotic stress and hormone response. In addition, there existed 10 gene segment duplication events in the SBP gene duplication analysis. Furthermore, there were four poplar and Arabidopsis orthologous gene pairs among the poplar SBP members. What is more, poplar SBP gene family has diverse gene expression pattern under salt stress. As many as nine SBP members were responding to high salt stress and six members possibly participated in growth development and abiotic stress. Yeast two-hybrid experiments indicated that <i>PtSBPs</i> can form heterodimers to interact in the transcriptional regulatory networks. The genome-wide analysis of poplar SBP family will contribute to function characterization of SBP genes in woody plants. |
| first_indexed | 2024-03-10T12:47:25Z |
| format | Article |
| id | doaj.art-676860b1289a4078933346243199d169 |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-10T12:47:25Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
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| series | Forests |
| spelling | doaj.art-676860b1289a4078933346243199d1692023-11-21T13:23:42ZengMDPI AGForests1999-49072021-03-0112441310.3390/f12040413Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt StressQing Guo0Li Li1Kai Zhao2Wenjing Yao3Zihan Cheng4Boru Zhou5Tingbo Jiang6State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaState Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, ChinaSQUAMOSA promoter binding protein (SBP) is a kind of plant-specific transcription factor, which plays a crucial role in stress responses and plant growth and development by activating and inhibiting the transcription of multiple target genes. In this study, a total of 30 SBP genes were identified from <i>Populus trichocarpa</i> genome and randomly distributed on 16 chromosomes in poplar. According to phylogenetic analysis, the <i>PtSBPs</i> can be divided into six categories, and 14 out of the genes belong to VI. Furthermore, the SBP genes in VI were proved to have a targeting relationship with <i>miR156</i>. The homeopathic element analysis showed that the promoters of poplar SBP genes mainly contain the elements involved in growth and development, abiotic stress and hormone response. In addition, there existed 10 gene segment duplication events in the SBP gene duplication analysis. Furthermore, there were four poplar and Arabidopsis orthologous gene pairs among the poplar SBP members. What is more, poplar SBP gene family has diverse gene expression pattern under salt stress. As many as nine SBP members were responding to high salt stress and six members possibly participated in growth development and abiotic stress. Yeast two-hybrid experiments indicated that <i>PtSBPs</i> can form heterodimers to interact in the transcriptional regulatory networks. The genome-wide analysis of poplar SBP family will contribute to function characterization of SBP genes in woody plants.https://www.mdpi.com/1999-4907/12/4/413poplarSBP familytranscription factorphylogenic analysisgene expressionsalt stress |
| spellingShingle | Qing Guo Li Li Kai Zhao Wenjing Yao Zihan Cheng Boru Zhou Tingbo Jiang Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress Forests poplar SBP family transcription factor phylogenic analysis gene expression salt stress |
| title | Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress |
| title_full | Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress |
| title_fullStr | Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress |
| title_full_unstemmed | Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress |
| title_short | Genome-Wide Analysis of Poplar SQUAMOSA-Promoter-Binding Protein (SBP) Family under Salt Stress |
| title_sort | genome wide analysis of poplar squamosa promoter binding protein sbp family under salt stress |
| topic | poplar SBP family transcription factor phylogenic analysis gene expression salt stress |
| url | https://www.mdpi.com/1999-4907/12/4/413 |
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