Genome-Wide Identification and Functional Exploration of SBP-Box Gene Family in Black Pepper (<i>Piper nigrum</i> L.)
Black pepper (<i>Piper nigrum</i> L.), is dubbed “the King of Spices”. However, the lack of genic knowledge has limited the understanding of its physiological processes and hindered the development of its molecular breeding. The SBP-box gene family is an important family in plant develop...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/867cf9e596034ea68293bf324de54736 |
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| Sumario: | Black pepper (<i>Piper nigrum</i> L.), is dubbed “the King of Spices”. However, the lack of genic knowledge has limited the understanding of its physiological processes and hindered the development of its molecular breeding. The SBP-box gene family is an important family in plant development and integrates multiple physiological processes. Here, we made a genome-wide identification of the pepper SBP-box gene family to provide evolutionary and functional information about this conserved transcription factor. In total, 34 <i>SBP</i> genes were identified in pepper. All these pepper <i>SBP</i> genes were clustered into eight groups, and one pepper group was not found in <i>Arabidopsis thaliana</i>. Segment duplications played the most important role in the expansion process of pepper <i>SBP</i> genes, and all these duplications were subjected to purifying selection. Half of pepper <i>SBP</i> genes were found miR156 target sites, and 17 miR156s were predicted. The tissue expression analysis revealed the differential expression of pepper <i>SBP</i> genes. Eleven <i>SBP</i> genes were found in four co-expression networks, and the GO enrichment further provides a functional prediction for pepper <i>SBP</i> genes. This study lays a foundation for further studies of pepper and provides a valuable reference for functional mining of pepper <i>SBP</i> genes. |
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