Transcriptomic changes in sweetpotato peroxidases in response to infection with the root-knot nematode Meloidogyne incognita
A previous transcriptomic analysis of the roots of susceptible and resistant cultivars of sweetpotato (Ipomoea batatas) identified genes that were likely to contribute to protection against infection with the root-knot nematode Meloidogyne incognita. The current study examined the roles of peroxidase genes in sweetpotato defense responses during root-knot nematode infection, using the susceptible (cv. Yulmi) and resistant (cv. Juhwangmi) cultivars. Differentially expressed genes were assigned to gene ontology categories to predict their functional roles and associated biological processes. Comparison with Arabidopsis peroxidases identified a group of genes orthologous to Arabidopsis PEROXIDASE 52 (AtPrx52). An analysis of sweetpotato peroxidase genes determined their roles in protecting plants against root-knot nematode infection and enabled identification of important peroxidases. The interactions involved in sweetpotato resistance to nematode infection are discussed.
KeywordsDefense signaling Root-knot nematodes Sweetpotato Peroxidase Transcriptome
Reactive oxygen species
Differentially expressed genes
Arabidopsis information resource
Quantitative real-time RT-PCR
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning (2018R1A1A1A05018446).
YHK, YWS, IHL and DS conceived and designed the experiments. YWS, IHL and YHK performed the experiments. KLL and KJN analyzed the data. JWY, JJL and SSK contributed to the analysis and provided materials and reagent tools. YHK, YWS, IHL and DS wrote the paper.
Compliance with ethical standards
Conflict of interest
All authors declare that have no conflict of interest.
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