Skip to main content

ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Functional and Applied Plant Genomics
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1470316
This article is part of the Research Topic Mutagenesis-Based Development of Novel Germplasm Resource for Crops and Horticultural Plants View all articles

The OsGAPC3 mutation significantly affects grain quality traits and improves the nutritional quality of rice

Provisionally accepted
Bo Peng Bo Peng 1*Yan Liu Yan Liu 1Xiaoyu Sun Xiaoyu Sun 1Qiang Zhao Qiang Zhao 2Jing Qiu Jing Qiu 1Xiayu Tian Xiayu Tian 1Jing Peng Jing Peng 3Zhiguo Zhang Zhiguo Zhang 4Yujian Wang Yujian Wang 1Yaqin Huang Yaqin Huang 3Ruihua Pang Ruihua Pang 1Wei Zhou Wei Zhou 1Yuliang Qi Yuliang Qi 5Yanfang Sun Yanfang Sun 1Quanxiu Wang Quanxiu Wang 1Yuqing He Yuqing He 6
  • 1 College of Life Science, Xinyang Normal University, Xinyang, China
  • 2 Henan Scientific Research Platform Service Center, Zhengzhou, Henan Province, China
  • 3 Xinyang Agriculture and Forestry University, Xinyang, Henan, China
  • 4 Henan Lingrui Pharmaceutical Co., Henan, China
  • 5 Xinyang Academy of Agricultural Science, Xinyang, China
  • 6 Huazhong Agricultural University, Wuhan, Hubei Province, China

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

    The glycolytic enzyme cytoplasmic glyceraldehyde-3-phosphate dehydrogenase (GAPC3) is involved in multiple biological processes in plants, including transcriptional regulation, and material metabolism. However, the relationship between OsGAPC3 and the quality traits of rice is poorly understood. Here we identify OsGAPC3 mutations that enhance the protein content and grain nutritional quality of rice by regulating the OsAAP6 gene expression. The number and volume of type-II protein bodies in the endosperm of the OsGAPC3 mutants, and GPC increase significantly. We report significant increases in chalkiness area and degree, and decreases for starch content, gel consistency, and taste value. Results of proteomic detection and analysis reveal that OsGAPC3 affects the major storage substances (proteins and starch) metabolism in rice, and the accumulation of proteins and starch in the endosperm. Additionally, the OsGAPC3 mutation significantly decreases the rice-seedling salt tolerance. Therefore, OsGAPC3 affects multiple quality traits of rice, participates in regulating rice-seedling salt-stress response. These data can be used to design better-quality and stronger salt-resistant rice varieties.

    Keywords: OsGAPC3, rice, nutritional quality, Grain Quality, salt-stress response

    Received: 25 Jul 2024; Accepted: 09 Sep 2024.

    Copyright: © 2024 Peng, Liu, Sun, Zhao, Qiu, Tian, Peng, Zhang, Wang, Huang, Pang, Zhou, Qi, Sun, Wang and He. 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: Bo Peng, College of Life Science, Xinyang Normal University, Xinyang, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.