Advancing Crop Nutritional Quality Through Genomic Approaches

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Plant Science".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 268

Special Issue Editor


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Guest Editor
Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
Interests: crop genetics; genomics; nitrogen use efficiency; heterosis

Special Issue Information

Dear Colleagues,

Advancing crop nutritional quality is a critical goal to address the growing global demand for sustainable and nutritious food. This Special Issue, entitled "Advancing Crop Nutritional Quality Through Genomic Approaches", aims to highlight cutting-edge research at the intersection of genomics and crop improvement. I invite contributions that explore innovative strategies used to enhance the nutritional profiles of crops, including studies on gene editing, genome-wide association studies (GWASs), transcriptomics, epigenomics, and metabolomics.

This Special Issue aims to focus on leveraging multi-omics data to improve key traits such as starch, oil, protein, vitamin, and mineral content while addressing challenges posed by environmental stress and resource limitations. Researchers are encouraged to share their findings on the identification of novel genetic loci, the application of advanced genomic tools, and the translation of basic science into breeding programs.

By uniting multidisciplinary approaches, this Special Issue seeks to provide actionable insights into improving crop quality, contributing to global food security, and supporting sustainable agricultural practices. We welcome the submission of original research articles, reviews, and perspectives that contribute to this vital field of study.

I look forward to receiving your contributions.

Dr. Gen Xu
Guest Editor

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Keywords

  • crop improvement
  • genomics
  • multi-omics
  • genetic loci
  • breeding

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Published Papers (1 paper)

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Research

17 pages, 2597 KiB  
Article
Mutation of the Polygalacturonase Gene AcoPG3 Deferred Softening of Pineapple Fruit
by Haiyan Shu, Aiping Luan, You Wang, Junhu He, Qing Wei, Rulin Zhan and Shenghe Chang
Biology 2025, 14(5), 474; https://doi.org/10.3390/biology14050474 - 25 Apr 2025
Viewed by 159
Abstract
A large number of pineapple (Ananas comosus) fruits are discarded in China every year due to softening. However, the underlying molecular mechanism is still unknown. AcoPG3 (GenBank accession number: XM020243935), a pineapple gene of polygalacturonase, was found to be the major [...] Read more.
A large number of pineapple (Ananas comosus) fruits are discarded in China every year due to softening. However, the underlying molecular mechanism is still unknown. AcoPG3 (GenBank accession number: XM020243935), a pineapple gene of polygalacturonase, was found to be the major gene responsible for the softening of pineapple fruit. Fruit of AcoPG3-overexpressing tomato (Solanum lycopersicum var. Jingfan 101) begins to soften 9 days earlier than that transformed with a net vector. Fruit of AcoPG3-overexpressing pineapple (APG3-2) begins to soften 6 days earlier than that transformed with a net vector. Fruit of MPG3-1, a pineapple line in which AcoPG3 is mutated, begins to soften 31 days later than that transformed with a net vector. The sequence of polygalacturonase activities in fruit from the highest to the lowest was APG3-2, wild type, MPG3-1. The same sequences were also found in the liquid content of apoplast and the electrolyte leakage of pineapple pulp. The order of methyl-esterified pectin content in the pulp cell wall, from the highest to the lowest, was MPG3-1, wild type, and APG3-2. The same order was also observed for the contents of non-methyl-esterified homogalacturonan and rhamnogalacturonan-I in the pulp cell wall. The AcoPG3 mutation resulted in a decrease in polygalacturonase activity in pineapple fruit, decreasing the degradation of methyl-esterified pectin, non-methyl-esterified homogalacturonan, galactan and rhamnogalacturonan-I in the pulp cell wall. Fruit softening can be deferred, and the shelf life can be extended by mutating the AcoPG3 gene. Full article
(This article belongs to the Special Issue Advancing Crop Nutritional Quality Through Genomic Approaches)
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