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Comprehensive Analysis of Leucine-rich Repeat Receptor-like Pro-teins Provides Insights into Their Roles in Biotic and Abiotic Stress Responses in Kiwifruit
Cao, Y.; Zhang, C.; Liu, F.; Li, D.; Zhang, A.; Li, L.; Zhang, X. Genome-Wide Identification and Expression Analysis of Kiwifruit Leucine-Rich Repeat Receptor-like Proteins Reveal Their Roles in Biotic and Abiotic Stress Responses. Int. J. Mol. Sci.2024, 25, 4497.
Cao, Y.; Zhang, C.; Liu, F.; Li, D.; Zhang, A.; Li, L.; Zhang, X. Genome-Wide Identification and Expression Analysis of Kiwifruit Leucine-Rich Repeat Receptor-like Proteins Reveal Their Roles in Biotic and Abiotic Stress Responses. Int. J. Mol. Sci. 2024, 25, 4497.
Cao, Y.; Zhang, C.; Liu, F.; Li, D.; Zhang, A.; Li, L.; Zhang, X. Genome-Wide Identification and Expression Analysis of Kiwifruit Leucine-Rich Repeat Receptor-like Proteins Reveal Their Roles in Biotic and Abiotic Stress Responses. Int. J. Mol. Sci.2024, 25, 4497.
Cao, Y.; Zhang, C.; Liu, F.; Li, D.; Zhang, A.; Li, L.; Zhang, X. Genome-Wide Identification and Expression Analysis of Kiwifruit Leucine-Rich Repeat Receptor-like Proteins Reveal Their Roles in Biotic and Abiotic Stress Responses. Int. J. Mol. Sci. 2024, 25, 4497.
Abstract
Abstract: Kiwifruit, a perennial horticultural crop known for its nutritional value, faces significant challenges due to biotic and abiotic stresses, affecting its yield and quality. Leucine-rich repeat receptor-like proteins (LRR-RLPs), a major group of receptor-like proteins in plants, have diverse functions in plant physiology, including growth, development, signal transduction, and stress responses. Despite their importance, the specific roles of kiwifruit LRR-RLPs in response to biotic and abiotic stresses remain poorly understood. In this study, we investigated the expression patterns of kiwifruit LRR-RLPs under various stress conditions, including pathogen stress, heat stress, waterlogging stress, and copper stress. Through genome and transcriptome analyses, we identified a total of 101, 164, and 105 LRR-RLPs in Actinidia Chinensis 'Hongyang', Actinidia eriantha 'Huate', and Actinidia chinensis 'Red5' kiwifruit, respectively, classified into 9 subgroups based on phylogenetic relationships. Synteny analysis revealed that the expansion of kiwifruit LRR-RLPs was primarily attributed to segmental duplication events. Using RNA-seq data from pathogen-infected kiwifruits, we identified specific LRR-RLP genes potentially involved in different stages of pathogen infection. Additionally, we observed the potential involvement of kiwifruit LRR-RLPs in abiotic stress responses, with upstream transcription factors possibly regulating their expression. Furthermore, protein interaction network analysis unveiled the participation of kiwifruit LRR-RLP genes in the regulatory network of abiotic stress responses. These findings highlight the crucial roles of LRR-RLPs in mediating both biotic and abiotic stress responses in kiwifruit, offering valuable insights for the breeding of stress-resistant kiwifruit varieties.
Copyright:
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