Transcriptional Regulation during Fruit Development and Ripening

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Developmental Physiology, Biochemistry, and Molecular Biology".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 4740

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Guest Editor
South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
Interests: Solanaceae; fruit ripening; specialized metabolites; horticulture
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Transcriptional regulation is one of the major regulatory processes that allow fruit to respond to the intra- and extracellular signals and to tightly coordinate cellular activities by a network of interacting genes. Fruit development is often characterized by a series of developmental conversions. Meanwhile, fruit ripening is regarded as a critical biological process modifying the biochemistry and physiology of fruits, dramatically affecting fruit quality, such as their appearance, texture, flavor, and aroma. Since most fruit traits, including sensory (such as fruit size and shape) and nutritional qualities, are elaborated during the development and/or the ripening stage, the dissection of the crucial genetic and molecular factors regulating fruit development and ripening is an urgent task toward improving the overall fruit quality of horticultural crops.

The purpose of this Special Issue “Transcriptional Regulation during Fruit Development and Ripening” is to present the state-of-the-art progress in molecular research on fruit crops’ growth and maturation. Innovative articles on the mechanisms of transcriptional regulation in any fruit species are welcome.

Prof. Dr. Shaohua Zeng
Guest Editor

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Keywords

  • fruit quality
  • fruit size
  • pigmentation
  • transcription factor
  • miRNA
  • regulatory network
  • specialized metabolites
  • abiotic stress
  • phytohormone

Published Papers (2 papers)

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Research

13 pages, 2775 KiB  
Article
Gene Expression in Zucchini Fruit Development
by Alejandro Ayala-Doñas, Miguel de Cara-García, Belén Román and Pedro Gómez
Horticulturae 2022, 8(4), 306; https://doi.org/10.3390/horticulturae8040306 - 05 Apr 2022
Cited by 2 | Viewed by 1916
Abstract
The study of fruit development in zucchini via gene expression has proven to be applicable in breeding programs. Phenotypic and transcriptomic studies of fruit set and parthenocarpy have been previously developed and some relevant genes have been reported. From these studies, three genotypes [...] Read more.
The study of fruit development in zucchini via gene expression has proven to be applicable in breeding programs. Phenotypic and transcriptomic studies of fruit set and parthenocarpy have been previously developed and some relevant genes have been reported. From these studies, three genotypes (MUCU-16, Whitaker, and Cavili) and six genes (CpAUX22, CpIAA4, CpIAMT-1, CpPIN5, CpCYCD6-1, and CpEXPLB1) were selected. The expression of these genes was analyzed in each genotype under three different treatments (pollination, auxin-treatment and non-treatment) during one week post anthesis. Also, a phenotyping analysis was conducted. The different nature of the samples and the genes selected allowed associations between different fruit traits and fruit development stages. There was a rapid response of CpAUX22 and CpIAA4 to the auxin treatment. Also, these genes and the CpIAMT-1 became more overexpressed in pollinated samples over time. The CpPIN5 gene increased its expression over time in all genotypes while CpCYCD6-1 was overexpressed in the early stages of fruit development in all samples. The CpEXPLB1 was highly up-regulated in non-treated samples, suggesting a relationship with fruit abortion. The overexpression of CpAUX22 and the non-overexpression of CpEXPLB1 in early stages may be associated with fruit growth in zucchini. Full article
(This article belongs to the Special Issue Transcriptional Regulation during Fruit Development and Ripening)
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16 pages, 1830 KiB  
Article
Molecular Insights into the Effects of Rootstocks on Maturation of Blood Oranges
by Giuseppe Lana, Giulia Modica, Giuseppina Las Casas, Laura Siracusa, Stefano La Malfa, Alessandra Gentile, Angelo Sicilia, Gaetano Distefano and Alberto Continella
Horticulturae 2021, 7(11), 468; https://doi.org/10.3390/horticulturae7110468 - 04 Nov 2021
Cited by 14 | Viewed by 2248
Abstract
Rootstock choice has important effects on the horticultural and pathological traits of the citrus cultivars. Thus, the scion/rootstock combination can affect tree vigour, nutrition, and stress resistance; it can also have positive influences on the fruit quality traits. Although the study of rootstock [...] Read more.
Rootstock choice has important effects on the horticultural and pathological traits of the citrus cultivars. Thus, the scion/rootstock combination can affect tree vigour, nutrition, and stress resistance; it can also have positive influences on the fruit quality traits. Although the study of rootstock effects has been a relevant research topic in citrus for many years, the main body of such study has been conducted at the biochemical level, while little effort has been directed to the determination of the rootstock influences at the molecular level. A comparative study of three combinations of scion and rootstock shows a positive correlation between the regulation of the fruit quality-related genes and the accumulations of bioactive compounds, as well as with acid degradation. Monitoring the anthocyanin accumulation during ripening shows the scion/rootstock combination can increase anthocyanin synthesis in the fruit, as well as vitamin C accumulation and acid degradation. Our results show that the rootstock genotype can exert important influences on citrus fruit quality by affecting gene expression in the scion. New insights into the molecular interactions between scion and rootstock may help unravel the systems through which rootstocks exert their influences on the regulatory networks in the scion, so as to influence relevant agronomic traits. This information should result in an improved rootstock breeding selection and definition of scion/rootstock combinations to enhance fruit quality traits. Full article
(This article belongs to the Special Issue Transcriptional Regulation during Fruit Development and Ripening)
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