Evidence map›Paper›PMID 42375799›Full record

ArticleFrontiers in plant science2026

Genome-wide characterization of the PPR gene family and its potential roles in stress responses and chloroplast RNA editing in

Jinghong Zhang, Min Chen, Ju Zhang, Fangyan Hu, Kexin Su, Yina Zhi, Yangshuo Huang, Junya Hu, Zhenmeng Tian, Qiurui Yang and 3 more

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Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Jinghong ZhangKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Min ChenSchool of Computer Science and Technology, Zhoukou Normal University, Zhoukou, China.
Ju ZhangKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Fangyan HuKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Kexin SuKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Yina ZhiKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Yangshuo HuangKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Junya HuKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Zhenmeng TianHenan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, China.
Qiurui YangHenan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, China.
Wenjuan LiHenan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, China.
Kedong XuKey Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, China.
Fei ZhouNational Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Pentatricopeptide repeat proteins are a large family of RNA-binding proteins that play essential roles in post-transcriptional regulation within plant organelles. However, a systematic understanding of their evolutionary expansion and functional relevance in Methods: Using the Results: A genome-wide analysis identified 493 PPR genes, classified into P and PLS subfamilies, with uneven chromosomal distribution and expansion mainly driven by dispersed and whole-genome duplication events. Furthermore, subcellular localization prediction indicated that most PPR proteins are targeted to mitochondria and chloroplasts, consistent with their roles in organellar gene regulation. In addition, Gene Ontology enrichment analysis suggested potential associations of PPR proteins with RNA processing and RNA editing pathways. Moreover, promoter analysis identified numerous stress-responsive cis-acting elements, indicating that PPR genes may participate in transcriptional responses under environmental stress conditions. Meanwhile, expression profiling based on publicly available RNA-seq datasets revealed tissue-preferential expression patterns and stress-associated transcriptional changes under drought, heat, and immune elicitor treatments, with some PPR genes showing altered expression across multiple stress conditions. Chloroplast RNA editing analysis based on heat-stress RNA-seq datasets revealed dynamic and site-specific changes in editing efficiency. Several editing sites, including Discussion: Collectively, this study provides a comprehensive overview of PPR genes in

Indexed as

Brassica rapaexpression patternsPPR proteinRNA editingstress responses

Identifiers

PMID42375799
PMCPMC13311020

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