Special Issue "Physiology and Molecular Biology of Flowering, Fruit Setting, Fruit Quality"

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Fruit Production Systems".

Deadline for manuscript submissions: 20 November 2021.

Special Issue Editors

Prof. Dr. Yuanwen Teng
E-Mail Website
Guest Editor
College of Agriculture and Biotechnology, Zhejiang University, Zhejiang 310058, China
Interests: fruit germplasm resources; physiology and molecular biology of fruit trees; phylogeny and cultivar development of fruit trees; breeding and cultivation of fruit trees
Prof. Dr. Zhenhai Han
E-Mail Website
Guest Editor
College of Horticultural Science, China Agricultural University, Beijing 100193, China
Interests: fruit germplasm resources; stress physiology and molecular biology of fruit trees

Special Issue Information

Dear Colleagues,

Flowering and fruit set are very delicate and of fundamental importance for obtaining abundant production in fruit trees and many other horticultural crops, such as fruiting vegetables or ornamental plants. Fruit quality, including internal quality and external quality, is extremely important in determining purchase and consumption decisions by consumers, which eventually determines how beneficial the fruits will be for growers. Therefore, physiology and molecular biology of flowering and fruit setting and the formation and regulation of fruit quality are important research fields in horticultural sciences. Recent advances in the establishment of high-quality reference genomes, large-scale genome re-sequencing and transcriptome databases in many of horticultural crops have made it more likely than ever to gain deep insight into the molecular regulation of flowering and fruit setting, and fruit quality.

This Special Issue aims to cover different aspects of flowering, fruit set, and fruit quality, including but not limited to flower induction and development, flowering phenology, pollination and compatibility, parthenocarpy, and fruit traits (e.g., size, shape, color, texture, aroma, sugar, and acid). We welcome contributions including original research papers, short communications, reviews, and methods.

Prof. Dr. Yuanwen Teng
Prof. Dr. Zhenhai Han
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 papers will be 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 1400 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.

Keywords

  • floral induction
  • flowering
  • fruit setting
  • fruit quality
  • fruit development
  • genomics
  • transcriptomics

Published Papers (1 paper)

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Research

Article
Comparative Transcriptomic Analysis of Differentially Expressed Transcripts Associated with Flowering Time of Loquat (Eriobotya japonica Lindl.)
Horticulturae 2021, 7(7), 171; https://doi.org/10.3390/horticulturae7070171 - 01 Jul 2021
Viewed by 428
Abstract
Flowering is an important phenophase of plant species, however, knowledge about the regulatory mechanism controlling flowering cues in loquat is limited. To identify candidate genes regulating flowering time in loquat, we used RNA-Seq technology to conduct a comparative transcriptome analysis of differentiating apical [...] Read more.
Flowering is an important phenophase of plant species, however, knowledge about the regulatory mechanism controlling flowering cues in loquat is limited. To identify candidate genes regulating flowering time in loquat, we used RNA-Seq technology to conduct a comparative transcriptome analysis of differentiating apical buds collected from the early-flowering variety ‘Baiyu’ and the late-flowering variety ‘Huoju’. A total of 28,842 differentially expressed transcripts (DETs) were identified. Of these, 42 DETs controlled flowering time while 17 other DETs were associated with the ABA signaling pathway. Compared with those in ‘Huoju’, EjFT, EjFY, EjFLK, and EjCAL1-like were significantly upregulated in ‘Baiyu’. Moreover, transcripts of the ABA 8′-hydroxylases (EjABH2, EjABH4, and EjABH4-like2), the ABA receptors (EjPYL4/8), and the bZIP transcription factor EjABI5-like were upregulated in ‘Baiyu’ compared with ‘Huoju’. Hence, they might regulate loquat flowering time. There was no significant difference between ‘Baiyu’ and ‘Huoju’ in terms of IAA content. However, the ABA content was about ten-fold higher in the apical buds of ‘Baiyu’ than in those of ‘Huoju’. The ABA:IAA ratio sharply rose and attained a peak during bud differentiation. Thus, ABA is vital in regulating floral bud formation in loquat. The results of the present study help clarify gene transcription during loquat flowering. Full article
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