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Evolution of antimicrobial cysteine-rich peptides in plants

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Abstract

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We analyzed the evolutionary pattern of cysteine-rich peptides (CRPs) to infer the relationship between CRP copy number and plant ecotype, and the origin of bi-domains CRPs.

Abstract

Plants produce cysteine-rich peptides (CRPs) that have long-lasting broad-spectrum antimicrobial activity to protect themselves from various groups of pathogens. We analyzed 240 plant genomes, ranging from algae to eudicots, and discovered that CRPs are widely distributed in plants. Our comparative genomics results revealed that CRP genes have been amplified through both whole genome and local tandem duplication. The copy number of these genes varied significantly across lineages and was associated with the plant ecotype. This may be due to their resistance to changing pathogenic environments. The conserved and lineage-specific CRP families contribute to diverse antimicrobial activities. Furthermore, we investigated the unique bi-domain CRPs that result from unequal crossover events. Our findings provide a unique evolutionary perspective on CRPs and insights into their antimicrobial and symbiosis characteristics.

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Acknowledgements

We thank Joanna Friesner for helping to revise the grammar.

Funding

This work was supported by the National Natural Science Foundation of China (32070250), the Natural Science Foundation of Guangdong Province (2020A1515011030, 2022A1515110240) and the open research project of “Cross-Cooperative Team” of the Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences.

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Authors and Affiliations

Authors

Contributions

YZ, HH, BCM, and DS planned and designed the research. HM and YF performed the bioinformatic analysis. HM and YF analyzed the data. QC contributed to data collection. HM wrote the manuscript. JJ contributed to sort out the literature. MA contributed to revise the grammar. All authors read and approved the manuscript.

Corresponding authors

Correspondence to Hai He or Yu Zhang.

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Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Data availability

All collected data used for this project were taken from available public databases. All other analysis scripts are available at https://github.com/Ma-hz/Evolution-of-plant-CRPs.

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Communicated by Ajit Kumar Shasany.

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Ma, H., Feng, Y., Cao, Q. et al. Evolution of antimicrobial cysteine-rich peptides in plants. Plant Cell Rep 42, 1517–1527 (2023). https://doi.org/10.1007/s00299-023-03044-3

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  • DOI: https://doi.org/10.1007/s00299-023-03044-3

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