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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Aquatic Photosynthetic Organisms
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1417582

Identification of differential gene expression related to reproduction in the sporophytes of Saccharina japonica

Provisionally accepted
Toshiki Uji Toshiki Uji *Takuya Kandori Takuya Kandori Hiroyuki Mizuta Hiroyuki Mizuta
  • Hokkaido University, Sapporo, Japan

The final, formatted version of the article will be published soon.

    Saccharina japonica, a significant brown macroalga in the Pacific Ocean, serves as a food source and industrial material. In aquaculture, collecting mature sporophytes for seedling production is essential but challenging due to environmental changes. In this study, transcriptomic analysis of vegetative and sorus tissues was done to identify differentially expressed genes (DEGs) and enhance our understanding of sorus formation regulation in S. japonica. KEGG pathway and Gene Otology (GO) analysis revealed that upregulated DEGs were involved in folate biosynthesis, riboflavin metabolism, and amino acid biosynthesis. In addition, the upregulation of genes associated with cell wall remodeling, such as mannuronan C-5-epimerases, vanadium-dependent haloperoxidases, and NADPH oxidase, was observed in sorus parts. Meanwhile, downregulated DEGs in sorus portions included genes related to chloroplast function. These findings will help us understand the regulatory mechanisms behind sorus formation in S. japonica and extracellular matrix remodeling in brown algae.

    Keywords: Brown algae, Gene Expression, Reproduction, Saccharina japonica, Sorus

    Received: 15 Apr 2024; Accepted: 12 Jul 2024.

    Copyright: © 2024 Uji, Kandori and Mizuta. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Toshiki Uji, Hokkaido University, Sapporo, Japan

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