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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Plant Bioinformatics
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1452281

A newly identified photosystem II Subunit P gene TaPsbP4A-1 in Triticeae species negatively regulates wheat powdery mildew resistance

Provisionally accepted
Jun Xu Jun Xu 1Mengfei Wang Mengfei Wang 2Yueming Ren Yueming Ren 2Wanglong Luo Wanglong Luo 2Lu Zhang Lu Zhang 2Shuangwei Liu Shuangwei Liu 1Ping Hu Ping Hu 2*
  • 1 School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, Henan Province, China
  • 2 College of Life Sciences and Technology, Henan Institute of Science and Technology, Xinxiang, China

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

    The photosystem II (PSII) Subunit P (PsbP) protein is a component of its oxygenevolving complex, which can oxidize water to produce oxygen using light energy and is critical to the core components and stability of PSII. Using the whole-genome information, the PsbP genes of 10 plant species were comprehensively identified. The expression patterns of wheat PsbPs under Blumeria graminis f. sp. tritici (Bgt) infection were assessed using qRT-PCR, and the functions of TaPsbPs in wheat powdery mildew resistance were studied using barley stripe mosaic virus-induced gene silencing. In total, 122 PsbP genes were divided into 8 classes with similar gene structures. No tandem repeat events were identified in wheat PsbP, suggesting that the PsbP genes in common wheat were donated by its diploid progenitor species. The expression levels of TaPsbP2A-1, TaPsbP3A-1, TaPsbP4A-1, TaPsbP4A-2, and TaPsbP7A-2 were induced by Bgt. The silencing of TaPsbP4A-1 increased the resistance of common wheat 'Bainong AK58' to Bgt. This study provides valuable information for functional and evolutionary research on the PsbP gene family.

    Keywords: Photosystem II Subunit P, Wheat powdery mildew, Expression pattern, Barley stripe mosaic virus-induced gene silencing, Evolutionary progress

    Received: 20 Jun 2024; Accepted: 14 Oct 2024.

    Copyright: Β© 2024 Xu, Wang, Ren, Luo, Zhang, Liu and Hu. 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: Ping Hu, College of Life Sciences and Technology, Henan Institute of Science and Technology, Xinxiang, China

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