New Gene Mining, New Technology Development, and New Variety Creation for Crop Improvement

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 140

Special Issue Editors


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Guest Editor
Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Interests: improvement of rice eating quality and breeding

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Guest Editor
Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
Interests: high-yield rice breeding; genetic improvement of rice quality

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Guest Editor
Rice Research Institute, Shenyang Agricultural University, Liaoning 110866, China
Interests: improvement of rice eating quality and breeding

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Guest Editor
College of Agriculture, Yangzhou University, Yangzhou 225009, China
Interests: mining and molecular evolution of new genes in rice and other crops
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Guest Editor
Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
Interests: light signalling transduction in plants; breeding salt-tolerance and drought-resistance rice varieties

Special Issue Information

Dear Colleagues,

The Special Issue focuses on quality, disease resistance, and high-yield goals in major crops such as rice, wheat, rapeseed, and corn. We aim to explore new genes for high-quality, disease- and pest-resistant, and high-yield development. By integrating modern biotechnologies such as genome editing, synthetic biology, haploid breeding, whole genome selection, and molecular design breeding with conventional hybrid breeding techniques, this issue highlights innovative strategies for crop improvement. The goal is to develop new varieties of major crops by polymerizing high-quality, disease-resistant, and high-yield genes, ultimately enhancing agricultural productivity and sustainability.

We welcome research on germplasm resources, new gene mining, genome editing, synthetic biology, haploid breeding, whole genome selection, molecular design, and other breeding technologies, as well as on the creation of new breeding materials, the breeding of new varieties, cultivation technology, plant physiology, and biochemistry research and other aspects.

Prof. Dr. Cailin Wang
Prof. Dr. Xiuying He
Prof. Dr. Liang Tang
Prof. Dr. Zefeng Yang
Prof. Dr. Xianzhi Xie
Guest Editors

Manuscript Submission Information

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Keywords

  • crop improvement
  • germplasm resources
  • genome editing
  • molecular breeding
  • good quality
  • disease and pest resistance
  • high-yield crops
  • cultivation technology
  • plant physiology and biochemistry

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Published Papers (1 paper)

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Research

17 pages, 5196 KiB  
Article
Upregulation of an IAA-Glucosyltransferase OsIAGLU in Rice (Oryza sativa L.) Impairs Root Gravitropism by Disrupting Starch Granule Homeostasis
by Guo Chen, Xiaoyu Fu, Xinya Ruan, Xiaolu Yu, Dianyun Hou and Huawei Xu
Plants 2025, 14(10), 1557; https://doi.org/10.3390/plants14101557 - 21 May 2025
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Abstract
Indole-3-acetic acid (IAA) glycosyltransferase (IAGLU) plays vital roles in modulating plant development and responses to environmental cues. Here, we elucidate the regulatory mechanism of OsIAGLU in modulating root gravitropism using OsIAGLU-overexpressing (OE) rice (Oryza sativa L.). OsIAGLU upregulation substantially decreases IAA [...] Read more.
Indole-3-acetic acid (IAA) glycosyltransferase (IAGLU) plays vital roles in modulating plant development and responses to environmental cues. Here, we elucidate the regulatory mechanism of OsIAGLU in modulating root gravitropism using OsIAGLU-overexpressing (OE) rice (Oryza sativa L.). OsIAGLU upregulation substantially decreases IAA levels, resulting in the impairment of multiple agronomic traits and root gravitropism, as well as nearly complete suppression of starch granule accumulation in rice root tips. Exogenous application of the auxin analog 1-naphthaleneacetic acid (NAA) effectively rescued both starch granule accumulation and root gravitropism. Starch synthesis genes exhibited relatively stable or slightly decreased expression following NAA treatments, whereas all starch degradation genes displayed a consistent downward trend in expression after NAA treatment. This suggests that starch degradation genes may play a more prominent role in regulating starch granule accumulation in rice roots, contrasting sharply with their roles in Arabidopsis. Moreover, decreased auxin levels perturbed the accumulation and distribution of hydrogen peroxide (H2O2) in rice root tips, while NAA treatment restored normal H2O2 distribution and accumulation in OE roots. This study clearly demonstrates that auxin not only functions in regulating agronomic traits but also plays an essential role in gravity perception by modulating starch granule accumulation in rice root tips. Full article
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