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Molecular Insights into Flower Gene Regulation
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Molecular Insights into Flower Gene Regulation

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 1650

Special Issue Editor

Prof. Dr. Wen‑Chieh Tsai

E-Mail Website
Guest Editor
Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan 701, Taiwan
Interests: plant evolutionary development; genomics; molecular biology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Flowers are the most important biological structure for ensuring the reproductive success of angiosperms. Many flowers owe their unique appearance to their evolutionary success. A standard flower arises from the receptacle and consists of four whorls of tepals, which are arranged as sepals, petals, stamens (androecium) and pistils (gynoecium), from the outermost to innermost whorl. The development of different floral organs is controlled by several classes of floral–organ identity genes.

This Special Issue aims to provide a platform for molecular insights into floral gene regulation. We welcome your submissions of original papers and reviews based on results from molecular viewpoints.

This Special Issue is supervised by Prof. Dr. Wen‑Chieh Tsai and assisted by our Topical Advisory Panel Member Dr. Shijiang Cao (College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China).

Prof. Dr. Wen‑Chieh Tsai
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • floral gene regulation
  • flowers
  • homeotic genes
  • MADSBox
  • pollination

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Published Papers (2 papers)

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16 pages, 5092 KiB  
Article
Genome-Wide Investigation of MADS-Box Genes in Flower Development and Environmental Acclimation of Lumnitzera littorea (Jack) Voigt
by Linbi Zhang, Yuchen Yang, Ying Zhang and Fusun Yang
Int. J. Mol. Sci. 2025, 26(4), 1680; https://doi.org/10.3390/ijms26041680 - 16 Feb 2025
Viewed by 523
Abstract
Lumnitzera littorea (Jack) Voigt is an endangered mangrove species in China. Low fecundity and environmental pressure are supposed to be key factors limiting the population expansion of L. littorea. Transcription factors with the MADS-box domain are crucial regulators of plant flower development, [...] Read more.
Lumnitzera littorea (Jack) Voigt is an endangered mangrove species in China. Low fecundity and environmental pressure are supposed to be key factors limiting the population expansion of L. littorea. Transcription factors with the MADS-box domain are crucial regulators of plant flower development, reproduction, and stress response. In this study, we performed a comprehensive investigation into the features and functions of MADS-box genes of L. littorea. Sixty-three LlMADS genes with similar structure and motif composition were identified in the L. littorea genome, and these genes were unevenly distributed on the 11 chromosomes. Segmental duplication was suggested to make a main contribution to the expansion of the LlMADS gene family. Some LIMADS genes exhibited differential expression in different flower types or in response to cold stress. Overexpression of the B-class gene LlMADS37 had substantial effects on the flower morphology and flowering time of transgenic Arabidopsis plants, demonstrating its key role in regulating flower morphogenesis and inflorescence. These findings largely enrich our understanding of the functional importance of MADS-box genes in the inflorescence and stress acclimation of L. littorea and provide valuable resources for future genetic research to improve the conservation of this species. Full article
(This article belongs to the Special Issue Molecular Insights into Flower Gene Regulation)
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9 pages, 2063 KiB  
Brief Report
Optimization of Tomato Shoot Architecture by Combined Mutations in the Floral Activators FUL2/MBP20 and the Repressor SP
by Xiaobing Jiang, María Jesús López-Martín, Concepción Gómez-Mena, Cristina Ferrándiz and Marian Bemer
Int. J. Mol. Sci. 2025, 26(3), 1161; https://doi.org/10.3390/ijms26031161 - 29 Jan 2025
Viewed by 624
Abstract
Shoot determinacy is a key trait affecting productivity in tomato, quantitatively governed by genes within the flowering pathway. Achieving an optimal balance of flowering signals is essential for shaping plant architecture and maximizing yield potential. However, the genetic resources and allelic diversity available [...] Read more.
Shoot determinacy is a key trait affecting productivity in tomato, quantitatively governed by genes within the flowering pathway. Achieving an optimal balance of flowering signals is essential for shaping plant architecture and maximizing yield potential. However, the genetic resources and allelic diversity available for fine-tuning this balance remain limited. In this work, we demonstrate the potential for directly manipulating shoot architecture by simultaneously targeting the flowering activating FRUITFULL(FUL)-like genes, FUL2 and MADS-BOX PROTEIN 20 (MBP20), and the flowering-repressing gene SELFPRUNING (SP). Loss of MBP20 in the sp background leads to additional inflorescences, while determinacy is largely maintained. However, additional mutation of FUL2 results in mainly indeterminate plants, which have faster sympodial cycling, leading to more compact growth and increased flower production. Our results provide a path to quantitative tuning of the flowering signals with a direct impact on shoot architecture and productivity. Full article
(This article belongs to the Special Issue Molecular Insights into Flower Gene Regulation)
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