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Fiber Plants: Genetics and Genomics, Molecular Mechanisms and Potential Applications—Novel Materials, Functional Foods and Beyond

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 386

Special Issue Editors


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Guest Editor
Department of Biology, University of British Columbia, Okanagan, Kelowna, BC V1V 1V7, Canada
Interests: genomics; transcriptomics; fiber developmental genetics; flax; hemp; nettle; reverse genetics

Special Issue Information

Dear Colleagues,

Fiber plants, traditionally cultivated for textile production, are now recognized for their vast potential in diverse industries, including novel biomaterials, functional foods, fatty acid production, and medicinal products. Recent advances in genetics and genomics have provided profound insights into the molecular mechanisms underlying fiber development, lipid biosynthesis, and bioactive compound production. This Special Issue aims to showcase cutting-edge research that explores the genetic architecture, genomic resources, and molecular pathways of fiber plants while highlighting innovative applications that extend beyond conventional uses.

We invite original research articles, reviews, and short communications covering, but not limited to, the following topics:

  • Genetics and Genomics: Genome sequencing, pan-genomics, comparative genomics, and multi-omics approaches in fiber plants;
  • Molecular Mechanisms: Gene regulatory networks, metabolic pathways, and molecular controls of fiber development, lipid biosynthesis, and secondary metabolite production;
  • Breeding Innovations: Applications of genome editing, molecular breeding, and precision agriculture to improve fiber quality, yield, and stress resilience;
  • Novel Applications: Development of sustainable biomaterials, functional foods enriched with bioactive fatty acids, and plant-based medicinal products derived from fiber crops;
  • Environmental and Industrial Impacts: The role of fiber plants in sustainable agriculture, bioeconomy, and future industrial applications.

This Special Issue seeks to foster interdisciplinary collaboration and promote the latest advances in fiber plant research. We welcome contributions from researchers across plant biology, biotechnology, biochemistry, and related fields to drive forward the understanding and utilization of fiber plants for scientific and societal benefit.

We look forward to your contributions to this exciting Special Issue

Prof. Dr. Jian Zhang
Prof. Dr. Michael Deyholos
Guest Editor

Manuscript Submission Information

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Keywords

  • fiber plant
  • genetics
  • genomics
  • bioactive products
  • natural fibers
  • fatty acids
  • medical products
  • environmental and ecological effects of fiber plants

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Published Papers (1 paper)

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Research

19 pages, 7720 KiB  
Article
Identification and Characterization of WOX Gene Family in Flax (Linum usitatissimum L.) and Its Role Under Abiotic Stress
by Xixia Song, Jianyu Lu, Hang Wang, Lili Tang, Shuyao Li, Zhenyuan Zang, Guangwen Wu and Jian Zhang
Int. J. Mol. Sci. 2025, 26(8), 3571; https://doi.org/10.3390/ijms26083571 - 10 Apr 2025
Viewed by 241
Abstract
The WOX (WUSCHEL-related homeobox) gene family plays pivotal roles in plant growth, development, and responses to biotic/abiotic stresses. Flax (Linum usitatissimum L.), a globally important oilseed and fiber crop, lacks a comprehensive characterization of its WOX family. Here, 18 LuWOX genes were [...] Read more.
The WOX (WUSCHEL-related homeobox) gene family plays pivotal roles in plant growth, development, and responses to biotic/abiotic stresses. Flax (Linum usitatissimum L.), a globally important oilseed and fiber crop, lacks a comprehensive characterization of its WOX family. Here, 18 LuWOX genes were systematically identified in the flax genome through bioinformatics analyses. Phylogenetic classification grouped these genes into three clades: Ancient, Intermediate, and WUS Clades, with members within the same clade exhibiting conserved exon–intron structures and motif compositions. Promoter analysis revealed abundant cis-acting elements associated with hormone responses (MeJA, abscisic acid) and abiotic stress adaptation (anaerobic induction, drought, low temperature). Segmental duplication events (nine gene pairs) contributed significantly to LuWOX family expansion. Protein–protein interaction networks implicated several LuWOX proteins in stress-responsive pathways. Expression profiling demonstrated that most LuWOX genes were highly expressed in 5-day-post-anthesis (DPA) flowers and embryonic tissues. qRT-PCR validation further uncovered distinct expression patterns of LuWOX genes under cold, drought, and salt stresses. This study established a foundational framework for leveraging LuWOX genes to enhance stress tolerance in flax breeding and functional genomics. Full article
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