Horticulturae

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Dear Colleagues,

Ornamental plants play an important role in human life and health and are widely used in agriculture, industry, and medicine, with great scientific interest and economic implications. However, although most flowers have difficulty breeding, and their excellent characters cannot be maintained, their regulatory mechanism has not been thoroughly studied. Therefore, the study of the physiology and molecular biology of ornamental plants can not only provide assistance for the screening of candidate genes and targeted breeding but also help to study the regulatory mechanism of ornamental flowers through classical molecular biology. Based on these, we have decided to launch this Special Issue, titled “Physiological and Molecular Biology of Ornamental Plants”.

This Special Issue welcomes contributions from researchers working in the field of physiological and molecular biology of ornamental plants. Original research articles are encouraged to be submitted.

Potential topics include, but are not limited to, the following:
Biotechnology or physiological research of ornamental plants;
Gene editing of ornamental traits;
Molecular regulatory mechanism of ornamental traits;
Biosynthesis of secondary metabolites in ornamental plants;
Biotic or abiotic stress-resistant gene function in ornamental plants;
Integrative analysis of multiomics.

Prof. Dr. Caiyun Wang
Dr. Tuo Zeng
Guest Editors

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. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). 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.

Related Special Issue

Published Papers (1 paper)

Research

14 pages, 3206 KiB

Open AccessArticle

Analysis of Transcriptome and Expression of C4H and FLS Genes on Four Flower Colors of Impatiens uliginosa

by Xiaoli Zhang, Yi Tan, Xinyi Li, Zengdong Liu, Fan Li, Haiquan Huang and Meijuan Huang

Horticulturae 2024, 10(4), 415; https://doi.org/10.3390/horticulturae10040415 - 19 Apr 2024

Viewed by 372

Abstract

Flower color is a major feature of ornamental plants, and the rich flower color of plants is an important factor in determining their ornamental and economic values, so flower color is an important research target for gardening and horticulture breeders at home and abroad. Our research group collected four colors of Impatiens uliginosa (white, pink, red, and deep red) during the collection of germplasm resources in the field. In this study, we analyzed the transcriptomes of the four flower colors of I. uliginosa by using RNA-Seq technology. The transcriptomes were screened to identify candidate genes related to flower color, and the coloring mechanisms of four flower colors were revealed at the molecular level. The main findings were as follows: (1) The number of the four different transcripts ranged from 64,723 to 93,522 and contained a total of 100,705 unigenes. (2) The analysis of differentially expressed genes revealed structural genes including C4H, FLS, PAL, and ANS and transcription factors including MYB, MYB-related, AP2-EREBP, and bHLH. (3) Among the four flower colors of I. uliginosa, the C4H1 gene had the highest expression in pink flowers, and the C4H2 gene had the highest expression in red flowers. This indicated that C4H genes positively regulated the red flower color of I. uliginosa. However, FLS expression was the highest in white flowers, and with deepening flower color, FLS gene expression gradually weakened, acting as a negative regulator. The results of this study could lay the theoretical foundation for investigating the mechanism of coloration and flower color variation in I. uliginosa. Full article

(This article belongs to the Special Issue Physiological and Molecular Biology of Ornamental Plants—2nd Edition)

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