ArticleBMC genomics2024
Comparative analysis of the PAL gene family in nine citruses provides new insights into the stress resistance mechanism of Citrus species.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Exogenous H₂O₂ enhances the quality of Radix Paeoniae Rubra and Radix Paeoniae Alba by activating ROS-mediated secondary metabolism.BMC plant biology · 2026Article
- Phenylalanine Ammonia-Lyase: A Core Regulator of Plant Carbon Metabolic Flux Redistribution-From Molecular Mechanisms and Growth Modulation to Stress Adaptability.Plants (Basel, Switzerland) · 2025Review
- Epibrassinolide seed priming alleviates alkaline stress by enhancing antioxidant defense in dragonhead plants.Scientific reports · 2025Article
- Comparative genomics and evolutionary insights in divergence and expression of CYP450 super gene family in citrus (C. sinensis, C. grandis&P. trifoliata).BMC plant biology · 2025Article
- Article
- RepA Protein of Citrus Chlorotic Dwarf-Associated Virus Impairs Perinuclear Chloroplast Clustering Induced by Lemon Chloroplast Malate Dehydrogenase.Molecular plant pathology · 2025Article
- Genome-wide identification and expression profiles of NAC transcription factors in Poncirus trifoliata reveal their potential roles in cold tolerance.BMC plant biology · 2025Article
- Molecular signatures that translate across omics layers and crops under high aluminium and low phosphorus stress facilitate the identification of reliable molecular targets for genotyping in lentil.Functional & integrative genomics · 2025Article
- Identification and expression analysis ofFrontiers in plant science · 2025Article
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12 authors.
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Abstract
backgroundThe phenylalanine ammonia-lyase (PAL) gene, a well-studied plant defense gene, is crucial for growth, development, and stress resistance. The PAL gene family has been studied in many plants. Citrus is among the most vital cash crops worldwide. However, the PAL gene family has not been comprehensively studied in most Citrus species, and the biological functions and specific underlying mechanisms are unclear.
resultsWe identified 41 PAL genes from nine Citrus species and revealed different patterns of evolution among the PAL genes in different Citrus species. Gene duplication was found to be a vital mechanism for the expansion of the PAL gene family in citrus. In addition, there was a strong correlation between the ability of PAL genes to respond to stress and their evolutionary duration in citrus. PAL genes with shorter evolutionary times were involved in more multiple stress responses, and these PAL genes with broad-spectrum resistance were all single-copy genes. By further integrating the lignin and flavonoid synthesis pathways in citrus, we observed that PAL genes contribute to the synthesis of lignin and flavonoids, which enhance the physical defense and ROS scavenging ability of citrus plants, thereby helping them withstand stress.
conclusionsThis study provides a comprehensive framework of the PAL gene family in citrus, and we propose a hypothetical model for the stress resistance mechanism in citrus. This study provides a foundation for further investigations into the biological functions of PAL genes in the growth, development, and response to various stresses in citrus.
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