FUL homologous gene CmFL1 is involved in regulating flowering time and floret numbers in Chrysanthemum morifolium
Copyright © 2023 Elsevier B.V. All rights reserved.
| Publié dans: | Plant science : an international journal of experimental plant biology. - 1985. - 336(2023) vom: 15. Nov., Seite 111863 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2023
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| Accès à la collection: | Plant science : an international journal of experimental plant biology |
| Sujets: | Journal Article Chrysanthemum morifolium FUL homologous Floret number Flowering time MADS-box RNA-seq Plant Proteins |
| Résumé: | Copyright © 2023 Elsevier B.V. All rights reserved. Flowering time and floret numbers are important ornamental characteristics of chrysanthemums that control their adaptability and inflorescence morphology, respectively. The FRUITFULL (FUL) gene plays a key role in inducing flowering and inflorescence meristem development. In this study, we isolated a homolog of the MADS-box gene FUL, CmFUL-Like 1 (CmFL1), from chrysanthemum inflorescence buds. Quantitative RT-PCR and in situ analyses showed that CmFL1 was strongly expressed in young inflorescence buds. Overexpression of CmFL1 caused early flowering while co-suppression expression of CmFL1 increased the number of florets. Furthermore, the floral promoting factors CmSOC1, CmFDL1, and CmLFY were up-regulated in the shoot tips of transgenic plants. In addition, RNA-seq analysis of the transgenic plants suggested that certain differentially expressed genes (DEGs)-such as MADS-box, homeobox family, and ethylene pathway genes-may be involved in the inflorescence meristem development. GO pathway enrichment analysis showed that the differentially transcribed genes enriched the representation of the carbohydrate metabolic pathway, which is critical for flower development. Overall, our findings revealed the conserved function of CmFL1 in controlling flowering time along with a novel function in regulating the number of florets |
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| Description: | Date Completed 10.10.2023 Date Revised 10.10.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2259 |
| DOI: | 10.1016/j.plantsci.2023.111863 |